TCVN 8791:2011 — Sơn tín hiệu giao thông - Vật liệu kẻ đường phản quang nhiệt dẻo - Yêu cầu kỹ thuật, phương pháp thử, thi công và nghiệm thu
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Hồ sơ VSQI ghi còn hiệu lực (A); tra cứu ngày 13/10/2026.
Danh mục tiêu chuẩn cùng lĩnh vực.
Nguồn đối chiếu: lớp chữ PDF/giải mã phông cũ và OCR tiếng Việt cục bộ. Giữ dấu vết nguồn và phần chưa xác minh; hình kỹ thuật/công thức gốc được giữ riêng khi cần.
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TCVN TrEu cHuAr.r euoc clA
TCVN 8791:2011
Xuit oin lAn t
soN riru HIFU GIAO THoNG -
VAT L;EU KE D1/ONG PHAN QUANG NHIFT DEO
PHI..P0NG PHAP THu, YEu cAu KV rHUAr,
THr CoNG vA NGHIFM THU
\- Traffic paints - Thermoplastic road marking materials
Specifications, Test methods, Constructions and Acceptances
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mgru ffiffi* T*1iF$
pnar nnruh| KH0ruG $A0 0H|JP nE
HA 2011 -TCVN &791:2811
Mue luc
1 Pham vi dp dung .
.:
z lat lreu vren dan ..
3 Thuat ngC'vd dinh
nghla
4 Yeu cdu ki thuat..
1C
4.1 Y€u cAu vd vAt li€u ..........
10
.4.2 Y€u cAu v€ hat thriy tinh
14
4,3 YOu cAu khi th& nghiQrn hien ti'uong. , . ....
14
4.4 YOu cAu vO kich thu'o'c hinh hoc
15
5 Yeu cAu ve ihi cong sc'n
15
5.1 Chuin bi b6 mat
15
5.2 Chuin bi vat li€u scyn tai hi6n tru'c,ng .
16
5.3 Chudn bi thiet bi
16
5.4 Thi cOn.q so'n
17
5.5 Tao do phdn quaiig r,i m5t
lt
6 C0ng t;ic ki6m tra vi nghi€m thu ..........
1i
6.1 Kiem tra tru'cyc Khi thi c6ng sun
to
6.2 Kiem tra trong khi thi cong son
18
0.3 Ki6m tra, nghi6m thu vach i<6 du's
1B
6.4 l(idm tra trong qu6 trinh khai thdc
1'u
6.5 Ho so nghiem thu bao g0m nhirng noi clung sau
19
.7
Y3u c3u ve do an tcan vA v€ sinh moi tru'o'ng
1g
Pir,.rc'ng phdp tht} nghi6rn
R
19
E 1 Chuin bi vAt li€u scn rihi€i iio thir nghiOrn (mlu ih,*i
1A
8.2 Pht.'oi-rg phiip xdc dirrh him lu,o.'ng ch6t tao mdng........
Zz
8.3 Fhu'cng ohdrp phAn loai cO hat vd xdc dinh ham luong hqi thty tinh......
28
B 4 Phu'ong plrdp xic dtnh do oh;it siing
.................
27
8.5 Phu,ohg phap x*c dinh d0 h€n nhiet cia si:rn vach d,-.r.:,ng rinrQt ddo...........
Za
e.6 Phu:qrg phA;,. xac dinh do mai nron cua son vach du,on,; nhi6t cjeo...
Zg
TCVfi 8791:2011
8.7 Phu'ong phdp x6c dinh d0 khang chdy.........
31
8.8 Phu'ong phdp xdc dinh kh6i tu,ong riring.........
31
8.9 Phu'crng phdp xdc dinh d0 ch6ng truqt........
33
8.10 Phu'ong phiip xdc dinh do phdn quang
.............. .
38
8.11 Phucrng phdp x5c dinh chi6u diiy ming son...........
39
8.12 Phu'ong phdp x6c dinh cdc chi ti6u thfr nghigm hign truong...............
40
8.13 Phuong ph6p x6c dinh nhi6i d0 hoa mdm
43
Phu luc A (Tham khdo): l-ludng d5n t5y m5u .........
46
PhU luc B (Tham khdo): C6c hinh ve
47
TCv*$,t E7g1:t$t'?
Levi n6i d*r:
TCVFI 8791:?0ll do Vien Khoa hqc vd Cdng nghq Giao ih6ng Vfln tdi
- bi$n so?n, B0 Gieo th$ng VAn tdi dA nghi, Tdng Cuc Ti€u chudn Do lucrng
,
ChAt luEng thAm dinh, Bq Khoa hqc vd C6ng nghQ cong b6.
TCVF{ 8791 i2fr11TIEU CHUAru QUOC GIA
nc VAt uaSo,n tin hi*u giao thong - irq
^ va YGu cAu ky thufit, i:',riiic,tnq'nhi6t 'd6o - .r.-i:ili iri
:.1:.i:,.;.,'::'nEhi6m thu
Specificatlotls. fesf methods, Therntaplasfic road ntarking materials -Traffic painfs -
constructions and acceptances
1 Phqm vi ip dqrng
Ti6u chudn nay quy dinh nh0'ng yeu cAu kV thuit, cdc phu'ong phap thu' cho vat liOu so'n vach drlo'ng
nhiet cjdc, cong nghg thi cong va nghidrn thu cho v?t lieu k6 du'crng nhi€t cj6o s0' dUng ldm vacli
l<d du'ong, gcr gidm t6c tr€n du'o'ng o to vi du'ong cao t6c.
? Tii li6u ,,'i€n C5n
C;ic tdi liQu vien din sau day la cAn thi6t de ap cJung ii6u chu6n nay. Ooi vci cac tai lieu viQn dln ghi
thinim cOng b6 thi ap dLrng bdn ciu'gc neu. D6i vcyi cac tdi liQu vi6n ciSn khong ghi ndm ccng bi
dp dung phien bdn moi nhAt, bao gonr ca cac sri'a OOi, n6 sung (n6u co).
AASHTO f,li 247-05, G/ass Be ads Used in Traffic Painls (Bi thiy lrnh su' clurtg cho sryn tin hi6tt
gtao titortg)
AASHTO M 249-98, Specification for ll"ritite anc! Yellow Reflective Tlterntolslaslic Slripirl g Mittertat
ttat tiQit go giatn t6c phan quarry nhi'Ot clio ntau trdng va i'i'i/]g (Saticl Forn) [Yeu cl,u ki thuat cfio
(datry rdn)1.
AASHTO T 250-05, Sfancrard fViei.hod of Test far Thermoplastic Traffic Line Material (Phttcng
pliap thit nghient vat liAu p.u 6l1i'(rt18 trhilt ct6o).
ASTM D '1394-76, Sfanriard Test Methacls for Chemicat Anaiysis of Vlttite Tilanium Pigrttents
(Plitro'rtg pltap phan ticit hoa hec cia bot ntdu oxit titan).
ASI'M D 6628-03. Slar:dard Specification for Color of Pave;rtent l,4arking Ma!erials (T!6u chttAtt
ottv dir.tti rniiu sdc cria -qon vach ciu'o'rtg).TCVN 8791:20i1
ASTM D 4541 Sfandarc/ fest Methocl for Pull-Off Sirength of Coatings Usirrg Porlable Adhesion
feslers (Pltu'ong phdp xac dinh dQ bant dinlt cia to'p phti bang thi6t bi Pult-Off).
ASTM D 6628-03, Standard Specification for Color of Pavement Marking Materials (Ti6u chudn
quy dinh mau sdc cia so'n vach du'o'ng).
ISO 2808, Paints and vamishes -- Deterntination of film thickness (Phu'ong phap xac dinh
cltiOu day c\a mang son va vecni).
8S 6088:1981, Specification for so/id g/ass beads for use with road marking compouncls and for
other industrial uses (Diic tinh ki thuat cho c6c hat tht)y tinh si,dung vo'i vQt tiQu kd du'o'ng va tlng
dung c6ng nghiep khac).
AS 1152:1993, specification for fesl sieve (Phu'ong phap phdn toai ban.g sang).
AS',158o.101.1,PaintsandRetatedMateriats
Phu,opg phap thir - Temperalttre, Humidity and Airflow Control (Son vd cac vdt tieu li,6n quan -
Di€:tt ki6n thtt'nghiQm cl|, dO 6m va ki6m tra dong khong khi) - Nhiet
Recommended materiats for testAS.1580.104.1, Paints atid related materials - Methods of lesf -
YOu cAu vat lieu cho t|m mdu thir pattels (Sori vd cdc v1t li6u lien quan - Pltu'ong phap thi,-
ttghiem).
AS.1580.105.2, Paints and relatecl ntaterials* Methocls of test- Pretreatment of metat test panels
\- Sar;ding (Son Pltu'o'rrg phap thi,- Ptttrong phap x* ti bO mgt tdm vd cdc vat li€u li6n quan -
mau).
A.S.27005- 1996, Colour Standarcls forgenera! purpose.s (Ciic ti€u chuAn mau sdic clung cho mtlc dich
cltting).
3 Thuit nE0'vi dinh nghia
tTrong tieu chuAn niry su'dung cdrc ihuat ng0'vd dinh nghia sau. .
3.1
Vit ligu kd du'o'ng (so'n vach duo'ng) nhi6t d6o (Thermoplastic Traffic Paint)
H6 vat lieu bao g6m chAt tgo ming, cirit Ogn, phu gia, bOt miru vi hat th0y tinh; co the chiiy m6m
khi nttng nong va c['ng lai khi ngu0i, du'gc su'dung ldnr vach k6 Cu'o'ng hodc go gidm t6c.
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Chit tao ming (Binder)
l*ihua nl"riQt drio chtra dAu va chAt hod ddo, tao su'dinh ket giO,a cdc thdnh pirin kh6c nhau trong
son'yach du'o'ng nhiet d6o va tao khd ndng dirrh bdm vtri mat du'o'ngTCVfd 8791:2011
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'
J,V
Phu gia (Additive)
Var tieu dang b6t ctu,e,c du'a th6m viro, gcp phin phin t6n bOt miu vd tham gia viro thdnh phin !
crla h6n hop sorr vach du'ong nhiet deo.
3.4
cnAt oQn (Filler')
V?t lieu khodrng dSng hat nhu,: canxi, thach anh, hay d6 siiic cc kich cd quy dinh dung de tao kh6i
cho son vach du'ong nhiOt d6c.
3.5
Bgi miu (Pigment)
DAng bQt mtn mang mau vd tao dO ph0 cho vrit lieu vach du'o'ng nhiet d6o.
.
3.6
'
Hat thtiy tinh (Glass beads)
,
Hat thuyi 1in5 co khd ndng phdn xa 6nh sdrng toi'
3.7
SQ phat sing (Luminance)
l-i lQ phat sing cua b6 nr6t phin xa theo mQi hr.reing ciic iiu'o'c sc vti'i be mit khui"deh tdn di:h
sding iririg ly tu,6,r..:g khi du,gc chieu sing iu cung mQi ngudn sirrg, du'o-c tinh theo ii !Q phAn tr5in
(%)
'
s.it
Eq chiu nhigt cu'c dqi (Maximum Temperature Resistance)
Nhiet d9 t6i da md v4t iiQu khong bi pha hui. Ougc quy dinh tuy theo rrhd san xuit.
3.9
Hi$n turcrng phin quang (Phencmenon Reflection)
,
Hien turong phdn xa anh sang, irong clo cic tia phiin xa co huong gAn trung vci hu'o'ng chi6u cua
tra s6ng gcc, dic tinh niy lu0n du,q'c duy tr"i khi thay d6i hu'o'ng chi6u cia tia sdng g6c.
3,1 0
OQ phdn quang (Reflection Coefficient)
Tli s6 grtir a h€ s6 cu.ong dQ s6ng cua mqt nrat phin xa drnh sdrrg tr6n ci€n tich cOa chinlr
mit do. Oon r;i do dg phdn quang ld Candelas trEn lux tr€n m€t vuOng (ccl.lx-l.m-t).
3.11
0o chong trug't (AntisliP)
Kha nSng ch6ng ti.on tru,ct cia b€ nr4t scyn vach du'ong nhiQt d6o.
😅
TCVN 87'J1:2A11
3.12
GiA tri dQ chOng truo-t (SRV)
Phep do cjQ ch6ng ma sat gi0'a kh6i tdn cao su va bd mat thi,nghiem
4 YGU cdu k! thuit
4.1 Y,6u ciu vd vdt liQu
V6t lieu kd du'o'ng nhi€t ddo co hai loai mdu tring va mau vang phai ld to hcp dOng deu cua cdc
bot mdu, cn6t Oqn, cfrAt tao mdng, phq gia (nOu co) va c6c hqt ihuy tinh phdn quang hinh cAu.
Trong do, chit tao ming du'-cvc ch6 tao tr6n ccv scv nhu,a alkyt hay hydrocacbon co c6c ddc tinh
ky thuit theo quy dinh tai 4.1.1 vdr 4.1.2. Bgt miu, hat bi thuy tinh va-chit don c6n du,cc tron ddu
vo'i chAt tao ming. Hat Ur th0y tinh trdn 15n trong vAt li6u co yeu cAu ky thuAt theo AASH TO M 247
loai 1
Khi su'dung cho cic cong trinh dic bi6t (du'crng cao t6c, du'ong dm u,ot . .) cAn do phdn quang
cao va go'gidm t6c cAn 6p dung loai vit li€u tuAn thu ti€u chuSn AASHTO tAZ4g.
4.1.1 Thinh phdn vit li6u
4-1'1.1 Vai iieu kd du'o'ng nhi€t cJdo st}'dung lam vach kd du'ong (rnarking paint) co cac 6rAnh
pirAn tho; man ,veu clu n€u irong Bdng 1.
Bdng 1 - Thinh phin cua vit li€u son vach dtvong nhiOt d6o lar: vach k6 ducrng
-----T- l"q,"g, Phucrns ph6p tht--l Thinh phdn ;et
Itlt "g$qlr,grg-l-
I B21 Chat tao mdng > 18
2 Hat ihuf iinh 83
3\. Canxi cacbonat, bQt mau s40
chSt don tro
trong do.
Dioxit titan (chi 6p rlLing O6i vOi
>6 ASTM D 1334 hoac ti€u chudnson nrau ti-ing)
tu,ong rlu'crng
iir
kh6i'Duyo,,,,.',a,,;,;;;tri t6i ttti6u 20 %; ;;;'., lugng hat thuy*ur.*,."*tinh trong son*;;;;;;;;r.,;:;,; vach du'c,ng nhiet deo, chu,a ;;,tinh een;;;,.-;;;]tr.u,crng nop I
sf dung thOnr cdc hat thui'tinh (t6i thi6u 10 %) phri th6m tr€n be mat vach so'n phdn ii."rang C6 tao phdn !
quang tu.-..*.--:.------.-__c thoi. _ _____Ji _
1frTCVtr'.J 879'i:2Bl'!
du'o'ng nhi€t d6o su clung ianr go'giiim t6c (pavement striping) co c6c thinh
4,1.1.2 V6t lieu ke
ciu nEu trong Bdng 2.
phAn thda man ydu
- Thirnh phdn cira .rdt lif u kd cluo'ng nhiQt d'do lirn.g+ giim t'5c
Bing 2
Phucrng ph6rp thir
Hirn luuo.'ng, % theo kh6i luo.'ng
Thinh piiin
Scrn tring
Scrn virng
> 1g
8.2
> 18
1. Chet tqo mang
30: 40.
2 Hal thui tinh
30 + 40'
8.3
ASTM D1394-76
> 10
3. Dioxit titan
Theo quy dinh t?i (..)
4. BOt miu vAng
Theo quy dtnh tai (..)
5. Canxi cacbonat va
S /+2
ch6t don trcv
CHU THiCH:
- Duy tri t6i tni6u 30oh t 40 % kh6i lu,gng hat thuy tinh trong so'n vach du'ong nhiet d€o tao gcr gidrn
t6c, chu,a tinh COn tru,ong hojp s0'dung thdnr cAc hat thuy tinh (t6i thieu 10%) ph0th€m trdn b6 mat
vach son phan q,:ailE d6 tao phiri quang tulc tho'i (iheo'y€rr c6u cia khacn hang).
'. Ham lugng bOt mair ving, cacbonat canxi vd
cdc chdt ,iqn tro'cin theo do'rr cua nhdr ch6
ddm dap ung tit ca cac i*Ou cAu trcng quy dinh
nay
I
4.1.2 Cic chi ti6u ky thuit
kd du'o'ng (marking paint) cin dat c6c ciri
4.1)2:1 So'n vach du'o'ng nhiQt d€o si' dung iirm vach
tr6u du'a ra d'Bdng 3.
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I rivN E791:2411
Bing 3 - c6c ci'ii ti6u k! thu$t c:-ja so,n vach cruo,ng nhi6t creo
---l--------.- r I -T6n i chi ti6,u V6u ciu ky thuit I t-______ ---;--*--*---j ,,.uu,o,r,n ,rr, ** I __ I - r
; --- i* -- --*-. i I Mau sjc j
jll: ll lrldu I tring I Y3s I _ i - ASTMD662B-03 r i i Mauvans rr,r,,,:l';:lilat',1,nss,.n i i'"'vuL'Lr'4.,-uJ
r i i gru'a har mau Y12 I i hodc Y 14 I 1 I __ _.__-___. i]_-___ I 2 Thc/i gian khO (voi dO dAy cua i i i !ljvachke2mm) l i I l'il iilr
i i TCVN 2096:1e93JJr i Nrhier do khong
I I r khi i f troct2oc i I i =2min rllir-**--i _ _t__- _---l- ,---l-li -l - I s oo phiit sdng: l--- - ----
i r '' i I i_ll sonmiutring I t tJ lo iI .ts% - I| II e+- | ilrr Son rnau i vang .: o/n I I z50o/o5o-"'u iI 1, --- -* I r i -_- ---- i i .+ eo ben --l nhi€t I
I ;ilirll Sc'nmaurring i i I ,,ron I s5 il " "'" i uliTiuvans t j| ,:$% : l" II rli_i ls runietdohcamdm, __.,,tri'i I > gc..;,.----_---loc ---=j g.rs I i i---1rr| i jo oomdi mon - i i-:r;r";;;;;;;;";;- l- ;_-- j ' I --r i izeokhdnschdy -:-:':'""' .;t,;,;;;- i | ur----i
Kh6i ru'ons --_ t riens ;:rt;.",,11;::3ii: [,,:'t: i' i i *; ii ; i xuit quy dinh i i'*" --- un bim j il!-:1: dinh ;;;;., \"La rrrr s/ i-- in i;,;;nno"i i f i i i t.. ^ri*;;;;; -- 1: - ; 10 Tho'i gian bdo- quar-r 1 ninr - i _--_ i rhOng voir cuc i.- i:l-;i'"-" i--*---"-- i j r
4.1.?.2 \.rat lieu vach du,crng nlri€i oeo sri, dgng lam go gidr,r t6c (pavenrent sirioing) cAn Cat c;jc
chitieLi dua ra'o Bdng 4.
i2 TCVN 8791:201i
Bii-ig 4 - Cic chi tidu ky thu4t cua so'n vach du'cvng nhiQt dio tao go'giiim t6c
:
I j Y€u ciu k! thuit Phu'o'ng phap thu'I Tdn chi ti€u
-:---iI- -^- T
I
II I 1. lvliru sic:
I I
I
I
I - Miu tring
I I ASTM D 6628-03 Y122hc Y 14 Mau vang
I Htoaclic tAt ccic m du trung
u Y12 hodc 0''tiarnn gigiO'a haii
I
I i
L _t_I
2 Tho'i gian kho (voi dq CaY cira I
vach kd 3.2 mm den 4,8 mm) i i
I TCVN 2096:19-q3 : oC I s2min Nhiet da khong khi 10 oC t 2
10 min -Tryilt-13 "9 s
1 ilr:li' :'' ----I- --l ? 00 phdt sang: I
>75% Sc'n mau tring I
I -: 45 o/o
l:_" 11 "Tg- -----t- -l AASHTO T 250-05
i 4. Kh:i ndng ch6ng n0't o' nhiQt Cq
ih*p: Sau ',ho'i gian gia nhiQt 240 (Section 12i
scrn Kh0ng bri nu't rrrin t 5 nrin d' 21S oC t 2 oC,
len kh5i be tOng v2r l,irn nguQi d,3rr 0c nC
! 9,4 r 1,7 I
Ir--- 0C 0C 102,5 + 9,5 U. IJ i5 Nhiet C0 hoa m€m
6 D0 khAng chdy: Sau iho'i gian gia AASHTO T 250-05 oc.t I {10o/ocy40"C nhiet 240 min t 5 nrin d 21E (Section i 7) ?on
., --t --.'-'--
J AASHTO T 250-05 7 Do b€n va dip z 1,13 I
(Section 14 )
C,12 B. Chi s6 hoa vang cua son i s i onSHf trins 't"u O T 250-05 8) Ir I' i| (Section
islKh5ilu'ongriErigi:0,05g/mlsovo'igiatrikh0iieg(hoic liltl.c.ngri6ngc0asondoNhaiAASiiTCT250.C5 : Ii Sansan Xua[xuAt Sectton-\ecii0n 10) quyquy ull:ildlnh iI i _ i- l.U, - -- -_ ro co 0.," o'^n i-- MPa) ! nsriui D4541 ';;;til; t,i!
I
: Kl:ong Von cuc ; i .i. l-iici gian bdo quan '1 ndrn
'l 2TCVN 8791:2011
4.2 Y6u ciu ve nat thriy tinh
4.2.1 Loai tr0n l5n trong son
l-lat thuy tinh trOn l5n trong son phai dqt cac y6u cAu ky thuat loai 1 theo AASHTO M 247 hodtc
loai A theo BS 6088.1981.
4.2.2 Loai ric len b6 mat
Hat th0y tinh rdc len b0 mdt vach k6 du'o'ng phdi dat cac y6u cAu ky thuat loai 2 theo AASHTO M
247 hoQ,c loai B theo BS 6088:1981.
CHU THiCH 1.D6i voi go gidm t6c, d6 tang d0 b6n va d6p cho vach kd n€n dung them hat th0y tinh toai C
theo BS 6088'l9B1.
4.3 Y6u ciu khi tht} nghiQm hi€n trucyng (voi son vqch du,crng nhiQt drio)
Vach tin hiOu phdn quang (bao g6m vach son kd du'ong vd vach son ldm gq gidm t6c) sau khi thi
cdng trong didu ki€n chuAn (hu'ong d5n tai 8.12) voi t6ng lu'crng xe chay qua khodng 300.000 d6n
3.000.000 lu'Et xe cAn thoa m6n c6c ydu cAu ky thuqt quy dinh tqi Bdng 6 vi c6c giai doan
ki6nr tra du,oc du,a ra d Bdng 5.
Bing 5 - Giai dogn ki6m tra
I -- ---t Giai doan ki6m tra Iil.vrqrl I
I --- ----- Loai dunng l- ---- - i i -- I--- ---*- -, I cttuy€n Ban diu titlp cung Ti | i i I cu6i | r -------l - - --l - -:-- --l------=-:.""- i -------1 I _-------t OOO I | 30 iong xe lu,u thOng 000 lu'o-t g OCO 000 asplrant lu'ot xe I Ti'u'o'c khi co I t xe I
-] ;;;:;;kh;";;;;"*J;, *;,;;"- ]--;oo o;;;;;-i i;";;;;; i----- - ------1 l----._-l--- i CUU THiCll, ChO dO th0' nghi,gm cho loai du'o'ng khiic kh6ng du'a ra trong ti6u chu6n niy I i_-.,.__
Bing 6 - C6c chi ti6u y€u ciu thu nghiQm hign tru'ong
Cic chi ti6u Y6u ciu ky thugt Fhu'o'ng phip tht!
1D0 chOng tru'ot > 45 8PN B9
tO phdn quang 2D0
Sone mau tring > 100 mcd.lx-.m'2 810
t*' t:::lg : 70 mcd.lx'.m't
t0 mai mon Dien tich vung con iai > 95 % 86
lo phat sdng
So'n niiu trdng >:75oh 84
So'n mau ving > 45 oio
b6ni dinh > 180 psi (1 ,24 MPa) ASTN4 D 4541
14 TCVN 87fi:?A11
4.4 y6u clu .rd kich tlru'crc hinh hoc cria vach k6 du'o'ng
cALr o Bdng 7'Kich thu'oc c0a vach ke du,ong du'o-c tuAn theo thiet k6 va thoa rnSn cac y6u
Bing 7-cac chi ti6u kich thucyc hinh h9c cira vqch k6 du'crng - - --_l| I - '-- i
kY I i thuqt II Phu'o'ngrhu'o'ng ph6pPhiP'nalth*' T€n chi ti6u iI i tru ciu i - --L-il ---+-- day vach so'n tin hi6u iI t. Chieu ,til
a) Vach trdi 2,0 mm .+ 5,0 mnr
phr-rn ngodi > 1,5 mnt b) Vach 8.11
cdc du'ong gcr Phun > 0,8 mm I c) Vsi
I
6P > 2,5 mm; s 3,5 mm iI Ol Voi cac vach l_
do +10%,-5% Thu'oc ph6p cua chi6u rong I , Sai s6 cho
scrn Iit ___.-_vach
ccng so'n 5 Y€,u ciu,rA thi
5.1 Chr.riin bi bi mqt
phii du'g'c l?rm sach. tat cd c6c ch6t la cAn phdi ioai bo irdn bt S.,i.1 Be mat tru'o,c ktri thi cong
mit khu vu,c thi cong. Nh0,ng vqch du,ong c0 con ton tai phdi du'cc cao bd trr|sc. tse mat drrcrng
oC' khong du'o.'c l5n Ciu, mO, hoi Am, nhiQt d0 phii > 15
5.1.2 Doi voi nrdt du'ong batong xi mdng. diu ti6n phdi phir mot lo'p thu'a ict de tdng cucrng dg
g6i voi mit du'ong bo tong nhu'a, dic biet d6i voi m{t du"ong da ihi bam dinh c6a vach k6 du,crng.
cong sau 6 thang c0ng n6n su, dung lo'p nhu'a lot nay oe oam bdo do b6m dinh cud vach k6
du'o ng.
S.1.3 Tuy ttlr-roc vao tinh trang rnlt Cu'ong, su,dung nrot hoic k€t ho-p hai hodc ba phi'r'cng plr6p duoi
day do lam sach mit duong tru,o'c khi son. Viec ldnr sach du'oc tien hdnh tai ddi nrit du'ong cAn scn'
cin trdnh lim vo.i chi€u r0ng t6i thidu ion hon chiAu rong vach son trong thiet kc ld 10 cm ve hai onia
hu hcng bC rndt du'ong.
5.1.3.1 Lanr sach bing phu'o'ng phdrp ccv hqc
Ap dung.khi co cic lop phu bin ciay, cdc mdng bdm xi mdng... b6rn tr€n bO rtiSt <iu'irn;i'
Su,dung cdc ioa! dtrng cr; cAm tay iiodc dung cu co klri nhtr* duc, may miri, nray qu6t " dA l*nr sach'
5.1.3.? Ldm sqch bing phuong ph6p thOi khi
Ap dung khi co cac n'ranh vo. bui. b5n, h6 xi rnang..' bdnr long 16o trSrr b6 ir'iat'
15r
TcvN BTgl 2011
ge tam sach mdt du'o'ng cAn su'dung m6y phun khi co dp su6t phun tu 506,63 kPa den 810,60 kpa,
dAu voi phun cdch bd mat mdt du'crng t0, 30 cm d6n 50 cm. Dong khi ldm sach khong duo,c ph6p co
dAu Nen si'dung thenr may h0t bui de loai bo bui bAn bam tro lai bA mit du,ong.
5.1.3.3 Lirm sach bdng phu,ong phdp h0t bui
Ap dung khi co bui vd m6t s6 cfr5t OAn khdc bdm tren b6 mdt du'ong.
Oe tam sach mdt duong cAn su,dung mdy h0t bUi ccng nghiQp cO lon.
5.1.3.4 Lam sach bing phu'crng ph6p su'dung ch6i quet
Su' dung cn6i cu'ng hodc cac dung cqr tu'ong tu' dr-l ldm sach trdn mdt du,crng khi co va cdc tap
chdt rin kh6c.
5.2 Chuin bi vat li6u tai hi€,n tru'ong
5.2.1 Dti trdnn bi6n mdu vd ph6ng rop do nhi€t dO thi cong vu'ot qu6 quy djnh, n6n tu tu,cho scyn
vao n6i nAu tu'ng bao mot vd phdi du'oc dun nong trong mdt thi6t bi gia nhiQt khuAy li€n tuc d6
trdnh qud nhiet cqc b0.
5.2.2 Trcng khi lim nong chay vat liQu c6n ki6m sodt nhi6t dO bdng mOt nhi6t ke voi do chinh xdc
1.5 oC so vot nhiet dO dun nong yOu cAu, Oe tranh vit liQu son bi qud nhiQt d0 cho phep
5.2.3 Khi de nong chdy, nhu'a hydrocacbon chi s0' dung du'oc trong vong O h, nhu'a alkyt se chi
su'dung trong 4 h. sau tho'i gian do so'n di dun nong phdi du'cvc loai bo.-
CHU THiCIi 2:
(a) T16nh nung nong qu:i nhi0r dQ chiu nhiet cU'c dai cda vit lieu nhi6t deo. HiQn tu,ong m6t mau va don ho6
co th6 xay ra n6u nhu'nhiOt d0 vu'o-t qud y6u cau du'gc nhd sdn xu6t quy clinh.
(b) Sau khi thiet bi sdn phdrn du'oc nung nong so b0, n6u th€m c5c vdt lieu b6 sung c6n diOu chinh t6c dg
quay sao cho qud trinh khuAy co hoc du.q'c duy tri.
5.3 Chuin bi thiCt bi
5.3.1 Thi6t bi kd ducrng
Thiet bt ke du'o'ng bdng tay hay tu'dong, co khi ning tao du,o,ng k6 kich thu,oc (3 t 0,1) m x
(150.i 10) nrm. rning phu dong nh6t voi do day 1,5 nrm r 0.2 mm.
5.3.2 Noi niu
Ki€u nOi don. du'oc ch6 tao bdng thep dung de nAu chay scn nhiet ddo o nhi€t dO i50 oC den
220 oC. bo khuAy trOn li6n iuc dunQ d0ng co thuy lu'c quay hai chi6u ciSn dQrrg tu dong co dieset.
5.3.3 Cac rlung cu khic
Con cj€rn hu'ong dieu clrinh giac thong. bien bdro...
lo
TCVhI 8791:2A11
5.4 Thi cong so'n
5.4.'l Thi cong so'n nhi€t deo bAng thi6t bi phun. Tru'o'ng ho'p thi ccng trong pham vi nhc, cuc b0
cho phdp thi cong bdng phu'o'ng ph6p thu cong.
5.4.2 So'n nhi6t ddo s6 du'o-c ihi cong tr€n mdt du'o'ng trong pham vi nhiQt d0 quy dinh crla nhii
sdn xuAt cho phuo'ng phap thi cong di quy dinh
5.4.3 Bd mit mdt du'crng tru,o'c khi thi cong vach son kd du'o'ng khong du'oc co nh0'ng f.nuy6t t$t
(ph6ng rOp, lrong troc, n0't, b!6n dang....).
5.4.4 Son nhiQt ddo s6 du,o-c tlri cong bing cdc phu'o'ng ph6p: phurr, ep, gat, gia c6ng dinh hinh,
hay tEo hinh tru,sc. EO ddy di6n hinh cua lop son di thi cOng bdng cac phu'ong ph6p thi cdng
khac nhau du'o-c chi ra o' Bdng B.
Eing S - g0 diry di6n hinh cria lap so'n v4ch dwri'ng nhi6t ddo
E6 day di6n hinl-r, mm
Phu'ong phip
Mriy thi c6ng
Muc dich
sr! dung
thi cong
di6n hinh
Toi thi6u
TOi da
Bdng tay hoiic rndy
Vach ngang va
Gat
2
5
tu,d'irig
biSu tugrng
Vacir dqc
l;1ay tu' ci$ng
1,5
Phun
Ep diy
M6y tu'dong
Vach doc
5
2
i0
Vach doc
Gia cong dinh hinh
ttlldy trJ'dOne
J
Bi€u trr'o-ng va vach dQc
4
Bdng tay
Tao hinh tru'oc
2
5.4.5 Sau 15 min ke tn'khi thi cong, vach kd du'o'ng phdi chiu du'o.'c dong giao thOng qua lai. Cg
tn6 idrnr ngLroi vaclr k6 du,o'ng bing cach phun nu'oc hoac bing clrc bien ph6p tlricii hgp irhac
nhlrng phdi Cam bdo sao cho vach kd du'o'ng khOng b1 hong.
5.5 Tao tlQ phdn quang be r"nqt
5.5.1 Tru'crng h-cp co quy dinh r5c th€m hat thuy tiirh l€n bO niit son vach du'o'ng thi phdi ric vi'i
nr?t d0 t5i tni6u 375 glm2 (ric bang mdy)
5.5.2 Voi nhO'ng vach du'o'ng co y€u clu ddnr bdo tinr nhirr ban d€rnr trcng di€u kien 5m uc't, co the
s0' dung hat.thuy. tinh vo'i kich thu'oc 1 mm d€n 5 rnm, va dap 0'ng y€u ciu cOa AASHTO M247 dg
thay th€ nrot phAn, hodc thay thd todn bQ lu'o-ng hat thiy tinh diro'c n€u tai 5.5.1.
l!
TCVN 8791:2011
6 Cong tic kiem tra vi ngliiern thu
6.1 Ki€m tra truoc khi thi c6ng scrn
C6c viit li6u son, bi phdn quang, bd mdt du'ong cAn dat cdc y6u cAu ky thuAt quy dinh tai Di6u 4.
6.2 Ki6m tra trong khi thi cong son
Oe tiem sodt chAt lu'qng thi c6ng theo d0ng quy dinh cda y6u ciu ky thuAt, cAn ki6m tra c6c
chiti6u sau vcvi, tAn'l suAt ki6m tra t h/ l6n:
\- Eieu ki€n mOi tru'o'ng: Nhiet d0, do 6m.
bO mit. - Be mat du'ong: DO sach, nhi0t d0
Nhiet d0 cua vit li€u tru'o'c khi thi cong.
phun hat ihiy tinh. - Ap lu'c
Chi6u diry mirng so'n.
\- Chi6u rong mang so'n.
6.3 Ki€rn tra nghi6m thu vqch tin hiQu phin quang
Vach son tin hi€u phdn quang sau khi thi c6ng cAn ti6n hdnh d6nh gi6 cic chi ti€u dua ra t6i
Biing 9, vcri tAn su6t 200 ni6t dii ki€m tra 1 di6m. K6t qud thi nghi€m ld gi6 tri trung binh crla
t6l tnieu 3 di6nr do
Bing 9 - Cic chi ti6u dinh giri vqch k6 ducrng _--: '*: -__ -__'*:..^- . ---l -, I t---- thtP- I Ydu6u cduciu __i___i___ _ PhucrnsPhucrns ph6pphep thir _Ilttfgll_c!ili:_y*l!! t!eu_ _ __ ]__l__ --t-----t--- gangeang metmit thuongthuong I fnOngfnOng phOngphOng rQp,rQp, khOngkhOng fnuy6tfnuy6t tit,tit, ii 1.1. NgoaiNgoai quanquan cOacOa vachvach kdkri II
I I phongrhons v€tv€t xurocxuroc I __ _1'""-:'',__'-:' l:"_" ___ _ lI IIt.l _
cucu dodo chiAuchiAu OonnOung ddydiy I 22 Chi6uChi6u diiydiiy vachvach sonson tintin nieunieu ii TheoTheo thi6tthi6t k6k6 IIL-^ oono /L^:^ rL...:.^ r 28082808 (hoac(hoic thu'cvcthu'crc do)do) | It ISOlso irl,i
55 Yo% soso vcvivcvi thietthiet keke fhu'oc do I +t 10rc %,%, -- 33 Chi€uChi€u rOngrQng vachvach sonson I| i i
-,--t.-I -*--* - i---i----l
I ,l - I u,o I a) So'n miu trdng iri i
I -i- --I_ 5. DQ phdt s6ng it- 'i18.4 i a) Son miu trdng i
B g i > 50 BPN I 6. D0 ch6ng tru'o't ;:ll
i--- - --i---- -- ---i--- I
ASrM D 4s41 IIi z oo bdm dinh i,t! I
18TCVN 8791:2A11
6.4 Ki6m tra troi'tg qui trinh khai thic
Oe Xiem soat chAt lu'o. ng cia vach kd du,o'ng phdn quang trong qu6 trinh khai thdc, cAn tiSn hinh
ki6m tra c5c chi ti6u o Bdng 9 .,ci'i t.in suAt t ndrn '1 lAn. N6u cdc chi iieu chAt luo'ng c0a vach k6
du,ong chi dat gii tr! nho lron 70 % gia tri cac chi ti6u quy dinh d Bdng 3 vd Bdr:3 4 thi cAn
tien hanh su'a ch0'a ting cu'crng hoac thay th€.
6.5 Hd so' nghiQnr thu bao gdm nh&'ng n0i dung sau
- Xet qud kiem tra vat li€u kh: 'Ju'a vao cong trinh;
- Nhat kf di6u kien thi cong, Nhat ki thi cdng son, Phi6u nghi6m thu thi cOng son vach duong.
- HO so k6t qud ki€m tra theo c6c y€u cAu quy dinh tai Bdng 9.
7 Y6u c6u ve an toan vir vG sinh moi truong
7.1 Vit lieu so'n nhi6t deo du'gc thi cong o nhift d0 cao. Vi vay, nguo'i s[v CUng phdi du'oc trar:;:
bt quAn do bdo h0 phu ho-p vir tu6n thd nhO'ng quy dinh v6 an toiin c[ra nhii sdn xu6i.
7.2 fAt cd c6n bO cdng nh6n vi6n thi cong v6 so'n phdi rJu'gc ddo tac vd t<y thuat scrn, co sij'c
khoe t6t, troirg rlc tu6i iao dong, dqc biet khOng di rrng khi ti€p xuc vc'i so'n.
7.3 Khu vu'c thi cOng pheii co rdo chin, bien b6o, ddn tin hi6u iheo quf dinh cua lu$t an ioin Eieo
ihOn.q du'o'ng b0. Rdo chan phdi dr;:rg ihiet ke an toari lao riQng, bi4n bdrc din tin hiqu phdi ihi€t ke
dung kich thu'oc, ki6u cdch ve an todrn giao th0ng gi0p cho m9i ngu'ci cc th€ nhan bi6t til'xa.
7.4 TAt c:i moi hoat dOng trong thi cOng khOng du'o.'c inh hu'6'ng x5u cho moi tru',-rng tai khu vr,rc
ihi cong.
7.5 Trcng quir trinh thi cong, khSng du'o-c d6 so'n thu'a, dung i'i0i, gi6 lau xu6ng s6ng, h6... giy 6
nhi6nr ngu6n nu,o'c. Khi thi cong xong cdc loai phe thdi phdi du'gc gom lai, t6p trung dutng ncri quy dinh.
,
7.6 Chat thdi nguy hai du'oc xu' l! theo quy C1nh.
I Phtuo'ng phip thu
3.1 Chudn hi m5r.r
8.1.1 Nguy,6n l1f
Liy nr5u theo phu'o'ng phdp O6 d6ng vA chia phAn tu' cac bao vit liQu gi'i den phong thi nghi$rn
(iheo Phu luc A.), t6y t6i thieu 2.5 kg: dem nung nong d€n,nhiQt d0 hoa mr3m roi tr6n C€u sau d'o
rct vit liQu nong chiy vao nrOt khu0n nr,iu tao hir:h thich ho'o cho mEu thu' nghiQm.
19
TCVN 8791:2411
8.1.2 Dqrng cqr vi thiilt bi
f .i.2.1 Thung ch[,a - sach, ldm bing kim loai
8.1.2.2 B0 ph+n gia nhiQt - 1 lo nung hay 1 bep gia nhi€t co thd do'du'o,c thung chu'a. Bo phQn !
gia nhiQt phdi co khd ndng dun nong du'gc dAy thung den 200 oC trong vong 2 h vd c0ng phdi co
khd ning duy tri cr mQt nhiet d0 nnAt Oinh voi dO ch6nh l€ch 10 oC.
oC, oC.8.1.2.3 NhiQt k6 - co thang dO do den 200 d9 chinh x6c t 1
8.1.2.4 DVng cr; khuiy - su'dung dao tron.
8.1.2.5 Tdm m5u tht} nghigm - bd mit kim loai hay thuy tinh du,gc chuAn bi theo quy dlnh
AS 1580. 1052 Cdc t6m m5u phdi phing, khong bi bi6n dang, kh6ng co v6t ldn gqn hay bi
ran nu't. Kich co t6m miu: (150 x 100 x 5) mm d6i voi t6m thu! tinh va-(200 x 200 x 2) mm d6i vcyi
tdm nhonr. fAt cd c6c tAm miu phdi du'qc ru'a sach bdng dung moi.
He thaing t0 hut bao gdm:8.f .2.6 Trl hut -
\- T0 hut
0ng d5n vd thdi hoi, khi dQc.
\- Quat h0t
8.1.3 Quy trinh chuin bi m5u tht! nghi6m
8.1.3.1 Tdng quAt
t/ii li€u th0'nghiem phdi du'oc chuAn bi tu,ong 0'ng vci 8.1.4.2 d6i vcyi vat li€u dang bQt hofc
8.1.4.3 O6i vOivat liqu dang kn6i di du,oc tac irinh tru'oc.
CHU THiCH 3: CAn bdo ddrn mAu l5y ra dai dien cno mot m6 sdn xuAt du'oc iu'a chon bang cach su' dung k!
thLr6t l6y m6u thich hrrp
8.1.3.2 Vqt ligu d?ng b6t - LAy tOi thieu 2.5 kg m6u vit li€u cho vio mQt lo nung hoic dit tr6n
mOt b6p gia nhi6t
8.1.3.2.1 Trinh tr,r'gia nhiQt trong lo nung
oC oC(a) Ning nhi€t d0 cua lo nurng d€n nhi€t dQ 200 t 10 sau do riflt m5u viro lo nung. Sau
20 min (vd sau 10 min + 15 min O6i vOi cAc lin dun nong X6 ti6p); nh6c miu ra kh6i lo nung, r6i
ou'a' mau; vao lu nLit; khuAy trOn d6u, nhanh bdng mOt lu'Oi dao khuAy; do nhi6i dO vdr dit m6u tro
oC oClai lo nung Khi nhi€t dq c0a miu dat'185 t 5 du'oi dang dong thd. rot vit lieu ien tr6n b€
rndt iAnr nriu th# nghiQm, hoic tao nrSu thu'nghiem tu'crng ung voi 8.i.6. Tho,i gian ke tr/ khi bat
ddu dr-r'a ntiu trong lo nung d€n khi tao mdu th0'nghi6m'khOng du'crc vircri qud 2 h. ','ao
ifl TCVN 8791:ZCX 1
oC oC, oC. 5 tdng nhiei d6 lo l6n 22OoC i 10(b) l.ieu mlu';at lidu vAn khong dong nhat o 185 t
doTiep tUc gia nhiQt rdi nhAc m5u ra sau nh0'ng khodng thoi gian tu'10 min :-'15 min, khu6y vi
nhiet dO tu,ong tu, nhu' bu,oc (a). Khi m5u dd hodn toan dOng nhat, thU'c hi6n vi6c tao m5u thr]
nghi6m.
oC oC(c) N6u m5u v6t tieu v5n khong d6ng nhAt 0220 r- 10 thi loai bo m6 vAt li€u ndy.
(d) Ghi lai nhi€r dO khi rot vAt lieu va khodng tho'i gian fe tu' khi b;t dAu du'a nrau vdo lo nung cho
d€n khi tao m6u thu nghiQni.
8.1.3.?.2 Trinh tu'gia nhiet tr6n b6p
oC oC bep toi thi6u 2,5 kg(a) NAng nhi€t d0 bd mit bep den nhi€t dO 250 :270 sau do.dat l6n
gdm bio d0 dong dAu, ningmlu thi, dr,r,ng trong mQt thung ch0,a thich hqp. KhuAy li€n tuc Oe
oC:5 oCdAn nhiet d0 vA do nhiQt dO vat li€u sau 5 min nrQt lAn. Khi nhiet dO cLla rn5u dat 185
nghiQrn du,cri dqng d'6ng th€, rot vdt li€u l6n tr€n b€ mit tam miu thu' nghi6m, hoic tao m5u thrl
tu,ong 1'ng voi (8.1.6). Thoi gian tlnh tu,khi bet diu gia nhiQt den khi tao m5u khong du'gc vu?t
qud t h.
nong miu, nhAc m5u ra sau (b) Neu rn|u vit ti€u khdng dong thO d 185 oC t 5 "C, ti6p iuc dun
5 mln m6t lAn, khujy vir do ntii€t dO tu'ong til'nitu'bLt'o'c (a). Khi rniu d5 hoirn ioan dOng ih3 ti6r:
h2rnh tec niSu thu' nghi0nr.
oC oC li€u. (c) NGu nriu vat ti6u v5n khong dOrrg ih6 o22A l 10 thi loai bo m6 vit
8.1.3.3 V4t liQu d?ng t<hiii fray vQt ligu dtgcrc tqo hinh truo'c
l6n b$p nung. C*r;h f,45u vqt li€u vo,i kh6i lu'o.'ng t6i tfrigu 2,5 kg du'a rrdo tr"ong lo nung hay dit
: thg'c thu'c hi€n nhu sau
(a) Khong cAn gia nhiqt, l6y kn6i m5u vd dip vun thdnh nh0'ng mi6ng nho, m6i mdnii ning kh$ng
qud 50 n
,rinh 6rr nTAum5u vatvAt liEuli*u trurr*o, *i-,i niogia nhiArnhiOt rnArno r;td A.;-io -.1.4.2.2.1 a) ) NnNgay lap tu;c khuay Cdu (b) ThU'c hi6n quy trinh
rot thanh miu thu, nghiqm ihich hop de thil nghiQm. Tho'i gian tu' khi dun nong m5u cho d6n khi
rot khOng du'o. c vu'o.'t qua t h.
8.1.4 Gia cong ri-riu th'r rrghi4in
Cdc m;u ihich hop dO thLl rrghiern phdi du'o.'c ch5 tao theo kich co'du'a ra cr Bdng 1. Cich ihu'c
nhu'sau:
(a) Neu chu;a dai d6n nhi6t dO chdy, dun ncng v$t lieu nhiQt C6c duo-c chudn bi len tren nhiei d0
185 "C: 5 "C va trOn cho ddn khi d6ng nhSt hoan todn
mOt tSrn thri' nghi$:rr (b) Trong tru'ong hcrp cAn nrOt mEu hinh trcn thi r"ot v?t liiu nhi6t ddo tr6n
cnb Oen [ni tac thinh rnOi cdi dia CLlcrng kinh khcing 10C nrm cay x6p xi 2rnrr.
a1 /-iTCVN 8731:2011
(c) Neu yeu cau viit liOu bao phu toan bo tAm m5ir d6 thi' nghiOm dO mAi mon (8.6) rot vit ii€u
nhiet deo len tAm kim loai roi dung thanh gai tao mOt lop day 2 mnr.
o/o(d) Dat miu cr di€u kiQn nhiet do 25 oC : 2 oC voi do dm trung binh 70 t 15 o/o trong vong
30 min, trdrnh dnh sang mdt troi va bui.
Bing 10 - Kich c& miu thr) nghiQm
Phu'ong phiip Kich cd mdu Chi ti6u Tdm m5u thr! thdP (D x H).
1. Him lu'o-ng ch6t tao mang
Phu'ong phap A. 3og 82
Phu'ong phdp B 100 mm x 10 mnt-
2 D0 phdt s6ng 8.4 100 mm Kim loai, cao su
silicon, thui tinh
3 O0 b6n nhi6t 8.5 250 s Cao su silicon
4. D0 nrAi mon 8.6 100 x 100 mm TAm miri kim loai
5. Kh6i lu'ung rieng 8.8 100 mm NhOm
6 t'lau s5c ASTM D 6628-03 100 mm Kim loai hodc thuy
tinh
CHU TI.IICH:
'D Dir'o'ng kinh, H. Chi6u clAy
8.2 Phu'ong phip xic dinh ham luong chdt tao ming
,B.?.1 NEuy€n l!
liam lucrng chSt tao mdng du'oc xac dinh hiing m0t trong hai phu'ong phip sau dAy:
Phu'c'ng phtlp A - Phu'ong phiip chitt nong bing dung m6i phu hgp. Phtrong phap nay co th€
dtrcc stl'dung nhu'm0t phu'ong phap chuSn d6 xdc dinh ham lu'Eng vd kich co hat thu! tinh.
\- FhLlo'nt phap B - Phu'ong phap gia nhr€t
ClltJ TFIICH 4 f,,lct vai chit tao mang id polyme rat fno tan D€ hcd tan hoan toiin ch6t tao mdng, ngu'o'i ta
ki6n tu'vin cia nhdthuonE sii'dung Cung mor d6c hi€u,.trong iru'o'ng ho.'p kho hon cin tham kh:io !
sart xuat TCVFi E7S1;F:St'!
B,?.2 Fliuo'ng phap A - Phrt'ung phap chi+it nong
rJurrg Uat cu'dung mOi nao co the hoa tan hoan tcan chdt tqo rnarrg8.2.2.1 T6c nh6n itoi tan - Su,
8.2.?.2 DVng cu vi thidt bi
8.2.2.?.1 Thring chu.a mEu - Dang hj:-rh trrr lanr tu'dong thau hodc lu'o'i d6ng vcri kich cO niSt iu'ri
b&ngkhodng 1 mm : 2 mm Kich thu'oc cua thung phdi cho ph6p thung du'qc treo duo'i nrit binir
2 nroc thep (Hinh 1).
6.2.2.?.2 Binh - Lam Lring thu! tinh chiu nhi€t voi durig tich 750 ml.
8.2.2.2.3 $inh hdn hii iu'u - Dung OO tfru hoi dung moi.
bang dign voi kich thu'cvc tiiicn no.--p.g.Z.Z.Z.d Bq ph+n nung nrSu - Gia nhi€t
oC ofl co khd ndng duy tri cv nhi*t da 105 + 5A.Z.Z.Z.S Tri s5y - Co bq phin tuin hodn khi nong vi
l.itt'rrc
Sinh hin
l.iu'o'c
Binh tanr gi5c
i i0 tirt
Hinh 1 --Tfiiet h! d*ng cho phw,r'ng phfip chi€t ri6ngTCVil,l 8791:20'! i
8.2.2.2.6 Binh l:ut 5m - Ch0'a siiicagen tu, chithi.
8.2.2.2.7 Cin - Chinh xdc d5n 0,005 g
8.2.2.2.8 Giiy lac - CO 0.8 1tm du'o'ng kinh 90 rnm
8.2.2.3 Quy trinh
(a) L6y miu th0'nghiem khodng 30 g duo-c gia cong theo 8.i.
(b) Dit vu'a van gi6y lcc vdo thung chr.r'a tao thanh mOt lcrp trdng kin sau do lam khO toan b6 d
nhiet ciQ 105 oC r 5 oC. DO nguoi thung trong binh h0t Anr, r6i dem cin (m")
(c) Eit c5n thirn m5u th0' i-rghi6m viro thung da du'o-c lot gi6y rdi denr cin toan b0 lay clrinh xac
to'i 0,01 g (mr)
(d) FloA 200m1 dung mOi vao binh, sau do dun h6i tu'u dung dich hod tan cho d6n khi chdt tong
chdy qua thung lu,o,i khdng con chu'a ch5t tao ming.
(e) Du'ng dun h6i lu'u de nguQi thiet bi vdr th6o nu'oc. NhAc thung lu'oi cung voi phin cnAt Oqn
kh6ng tan con iai, dem ri'a sach r6i ldm khd cy nhi6t dO 100 oC va 120 oC. Trong qu6 trinh lam kho
cin thung lu'o'i sau nhirng khodng thoi gian 30 min. Ti6p tuc ldm kho cho d6n khi su,ch6nh l4ch
sau rn6i lAn cdn khong vu,o,t qu6 0,01 g Ghi lai lu'crng cAn cuOi cung (m2).
(f) Thu h6i t5t cri cdc vit li6u tinh co m{t trong dung dich va k6t th0c thu nghigrn bing cdch toc
toarr bo dung dich qua giSy ioc hodc bdng c6ch quay ly tam. Oem c6n phAn khong tan thu du,oc
(m,)
8.2.2.4 Cong thuc tinh to6n
/\
,n, -l,tt^ -t-,1- I
/j=, l(X)\ 'l
nll - nlt.
t;'ong do
B
la harl lu'ong chAt tao nrang, tinh bdng % kh6i lu'ong;
ntt
ie kh5i lu'o'ng mAu + thung luoi + giAy loc, tinh bing g;
i'lr:, la kh6i luo. ng phAn chit dOn thu hOi + 1hr.rng lu'o'i + giAy lpc, tinh bing g;
/rr3 ie kh6i lu'gng plrAn cdn thu du'g'c trr dung dlch lqc vd ly tinr, tinh bing g;
nt.
la khOi lu'r:1ng thung lu'o'i + giSy lqc, tinh bdng g.
8.2.3 Phu'o-ng p.h*p B - Phucrng phAp nung
8.2.3.1 Dung cu va thiiit iri
8.2.3.1.1 Noi n*u - du'o. -c lar-n bdng su'.hodc tr-r'mQt dang vat l!€u ihlch ho'p khdc
'24
TCVf{ 8731:2$11
oc , 25 oc, thu,O,ngg.2.3.,!.? i.-o nur:., gian tidip - co khd nang du5, tri trong khodng nhi6t do 5c0
co the tich 2,4'- voi cong suAt celc dar 1,5 k',v.
S.2.3.1.3 Binh h0t Ani - cii0'a silrcagen hoi,c tdrc nhan lam kho thich hap.
bdng cii,!n vo'i hinh dang ihlch ho'p.9.2.3.1.4 BQ phan nunE m5u - gia nhi6t
x6c 0,005 g.8.2.3.1.5 Cin - Co khe nang cAn tor 1009 vo'i d0 chlnh
8.2.3.1.6 DUng c.; trQn - ldm bdng kim loai.
l-19 thiing t* hrit bao giirn:8.2.3.1.7 Ti hut -
a) Tti h0t
b) OnE oin va thdi khi dQc
c) Quat h0t.
8.2.3.2 Quy trinh
rnm(a) Liy mQt nrSu thil nghiem hinh tron co du'o'ng kinh gAn dung 100 mrn diy khoilr;g 10
du'o. c gia c6ng theo 8.1.
(b) Dap vat li6u thdnh nhri,ng mi6ng i-rho va d'5t viro 2 c6c s0'nhu'nhau kh6i lLlc.'rrg {rn"), m6i cdc
g. (m., g khoang 10 g) vit liOu. Sai s6 r-n6i iin can khOng vu'o.'t qud 0,0i
l<hi(c) eu,a c6c s,i, vcri phiri vfrt li€Lr di i6n rrho ien bOp di€n dAi irong ti h'it riii than hc* clro Ciln
irol.rg khonr; con khci oay ra. lJhac c6c su ra rlioi bep, clung bay dir: vuit ihinh bQt tlitAn con lai
c6c s0', nen cdn thin trdnh bi hao irut lu'qngl vdt li*u ti-cng c5c.
nui-rg irong 'J 50C 'C (d) Eit c6c s0' va phin bQt dd du'o'c tin nhd vdo long lo nung gian ti€p vd
cacbonat t6i tni6u trong 1 tr cho ddn khi kh6i lu'crng khOrrg O6i. ';e trinh khong lim piiSn hu!
vO co, khong <lu'crc nung m5u qua 550 "C.
vdr cAn iai (e) Sau khi nung o bu'o'c (d), linr nguQi rniu trong binh hut Am d6n nhiet d0 phong
pniln vdt lieu sau khi nung (m2) voi d0 chinh xac 0,01 g.
(f) Tinlr hanr luong chdt tao mang tlrec cOng thu'c ti' 8.2.4.3.
(g) Ndu khoang chQnh l9cir gi0,a c6c k6t qud lon hcn 0,3% phrii iap lgi quy trinlr thti'nghif,rn ir6n.
8.2.3.3 C6ng lhwc tinh
l)! t - i!! , ---- --- (2) /j -= I tl(l \ "-
)ll | - lll
trcnq do.
iu'o.'ng, B id hanr i*o.'ng ctrit tao nran;, tinh bilng % khii
7_5 TCVI.{ 8791:20i 1
tnt la kh6i lu'o-ng c6c s0' + m5u, tinh bdng g;
tnz la kh6i lu'ong c6c su + phin cin sau khi nung, tinh bdng g,
nic la kh6i lu'o.'ng c6c si.r,, tinh bang g.
Trinh biy k6t qud du'oi dang plrAn trim khOi lu'o-ng nguydn niSu cho m6i mAu r6i tinh k6t qLrii
irung binh.
8.2.4 B5o cio kOt qud
Him lu'o-ng phAn trim (%) chAt tao mang ld trung binh ket qud iu' hai thl nghiQmrrv'r ir€nrrv'r l5yrsr ic'i\\'r s6rv
{
thlp phan th0'nhAt.
I
8.3 Phucrng phip ph3n ioqi cd hat vi x*c clinh him lwgng hqt thuy tinh
8.3.1 l.lguyen ly
Vat ii6u clu'cc chuAn bi d 8.1 sau khi dern thri'nghiem hdm lu'o-ng chit tao mlng d 8.z,dem phAn
\- loai co' hat bing c6ch s0' dr,rng sdng loc thu, nghi€m, con cac hpt thuf tinh du'oc t6ch ra kh6i h6n
hqp nho mdy rung diQn, tu'do xac dinh thdnh phAn phin trim ctla no.,
8.3.2 DUng cu vir thi6t bi
8.3.?.1 Sing lgc th& nghlgrn - L6 sing cc kich thu'c'c 2,8 mm va 425 pm. Su,dung b5t cu,dung
nr0i nio co ih6 hoa tan hoAn toan chit tao mang
rung vo'i t6c d0 50 vongis voi bi6n do co tne ininn du,o. c nho m6t tAm g.3.2.2 Mfiy rung dign -
thuf iinh vu'a vin voi giii dO c0a no. Tdm thuy tirrh co kich thu'o,c 380 mm x 150 mm va trong su6t
' qua trinh van hinh miy, tAm thu! tinh sE phdi nghiOng 1l2O hay 2,9o theo chiAu du'ng.
"Sytron" lcai FTO1, Code 59-D-193 hoac tu'ong du'ong. CH0 TFiiCH 5 Su dqng m6y
8.3.2.3 Ein chii - nh6 va m6m
B.:1.?.4 Cin - Cc) kha ning cAn chinh xac to'i 0,005 g.
,
$,3.3 Phdn loai ccp hat cac cdu tly
(a) frlf:u sir dung g:hu'c'ng ph6p chiet nong o'8.2. iru'oc net OOt chdy gi6y loc va irQn lhAt ky
6ihan iro voi pirAn cOi li€u 1
1b) Thuc hiQn thi'nghi€nr phAn loai cd hat bing cdch su'd,;ng lu'o'i sdrng 2,8 nrrn va 425 *m theo j
AS 1i52
(c) Tinh phAn trim kh6i tu'qng (%) hat lot qua rn6i sang, do c0ng la phiin rrim kh6i lu'gi'rc
tdng no'p cac',hinh phdn: c6t tieu. bqt miu, chit dclr'r vi hat thul? trnh
)^ TCVN 879-i:!C11
8.3.4 Xac rfinli ham lu'c"ng h+t thuy tinh
(a) T0 ho-p lar t6i cd vit iieu giO' lai trong 2 sirng (bu'cc 4(b)) sau do ta tirch cac hat tron khoi cac
hat khonE tron.
(b) Xac dirrh khOi lu,o-ng t6ng c0ng (m.) cua cdc hat thu! tinh tron thu thap du'o-c va iinh
kh6i lu,ong (ni. x 100/70) cia cac hgt thury tinh trong nguy6n mAu cia son vach du'o'ng rrhi6t ddc.
CHU THiCH 6 Dam bAoTlok circ hat thuy iinh la hinh tron.
8.3.5 Bao cio kilt qui
PhAn tr"im (%) kh'ri lu'crng rrit li,iu !ot qua sang
HSrn lu,ong phan irdm (%) hat thu! tinh trong nguytirr mEu vit li6u (mc x 100i70).
8.4 Phuo'ng phip xic dinh rl0 phit sing
8.4.1 Nguy6n lf
rrr6yPh6p do d0 phat sang cua nriu ihu, nghi€m duEc thU'c hien nho s0 dr,rng quang ph6 k6 hoic
do mau Tristimulus bdng cach so sanh voi i'niu ggch ldt trdrrg ti6u chuAn co dO bong th6ip
8.4.2 Dr,rng cr,r vi vfrt li6u
ilE$cYc v,?'i b'l8.4.2.1 Gach l*t tr*ng tisu chudn - co grd tri CiE Y lcn ho'n 75vi duoc cliia d0
khu6ch tin phdn xa tcAn phAn.
vo'r ?-,.4.2.2 Tdm miu tir*' nghi€m vi iniu - ldrm bang kim loai, thu! tinh, hoic cac su siiicori
Cu'o'ng kinh nriu 10Q mm (chu5r', bi 6'8.1).
8.4.2.3 Miy clo nriu vi quang ptr6 UO - phu hqp sii' dung du'o'i cdc di6u ki€n sau
100 tru'c giao, hay tim nliin khudc;h(a) Chi6u drnh sdrng khuy€ch tan va goc nhiri trong pham vi
tan vc'i anh sang trong pham ,,'i 100 tru'c giao.
,(b) CnAt phdt sang D65 hay chii phat sdng C
(c) Tuan t!-rec nrau CiE vci ham y'o hay Y trcrig CiE 15.2 AS.2700S.
Ci-.i!J IHICH 7. Su,cung may clo mau fvlrnciia Chrcrna i.letei'll hoac loai co tinh ning iu'cnE duo'ng -'}ao
ir;-rg cac irdu chuAn LS-3CCC, A.STt'4 E-310, CIE&Dll'1.
_ ntro va rrr6ni. B.+.?.4 Bin chai
8"4.3 Quy trinh
nghiQm 8.4.3.i Phu,c'ng phao 1 - F'ht-i'c'ng phap trc'nE p''hong thi
1a) i.Jiric nrir-r hintr dia ra khci tAir: ndn va iat ngu'o.'c sao'chc nrdt sau ci.ia mitr ilgui'a l*ii ri4n di
tao be nrat r-rhiri bong kl-,i ti,u'c hiirt ;.:hep dc.
(l-r) iii€u i;'ri;rh eL!it.t c,l nqurJc'.'r'*i gac:i-i iit ir:l:rg tiOir ch:.;5n..
LiTCVN 8791:201i
(c) Dat Cung cu tr'6n be nrSi thd' ngl'riern vir do gid tri Y. Cac ph6p Co du'o'c liy tu'5 vi tri khdrc rlhau
trSn nriu.
8.4.3.2 Phu,ong phAp 2 - Phu'c,ng phep t16ir nidri tru'ong
{a) SLi dung llit nu'crc sach vi mOt bin chii cu'ng, lau ri'a mQt ph6n vach kd thu nghiQm khong
chu'a hat, ldm sach bui b5n tr€n b€ nrit tu' pham vi c6clr canh ben 50 mm t 75 mm. R[i'a vo'i 1 L
.khO.nu'oc sach va. (ie-l
khOng cho drnh sJrng nhi6u tcri may do mau, sau dc thuc hiOn cAc noi(b) Ch0 f d€ phong va ngdn
dung iheo quy clirrh tai r<hodn (b), S 4.3.1, nlru,ng phep do chi dinh vi tai mci vi tri tr6n mang son.
!$o 5 l6n, sau m5i lAn do quay may do720 53pr; chuyAn vi ngang t6i tnrdu.
8.4.4 B5o c6o ki-it qui
Tinh rrL:rig binh 5 gi* tri do du'o.'c d tren vd bi6u di€n no du'o'i dang phan ir'5m (%)hy chinh xAc tcvi
'1 0;- I /(r.
ddo*.5 Phu,o'ng phep .r:ic d!nh dQ b€n nhigt cria su'n vqch dwong nhi$t
8.5.i Ngul;6n ly
kiro*ngDi pl^.rt sang c,ja v3.t lisu du'gc '5c sau khi du;r tri nhi6t d0 cia vii li€u o 200 oC trong
tii,-.r'i giz;;i 6 l-r
;t.S.2 Thi+t b!, dung c:.t
du'i.-','g idm icm dit ti'€n b*p diiri co8.g.;.'! BQ ph$n gia ni:i$t - MQi bO cjiu ;iodc mOt tirn nliOm
oC oC. klia nang Cuy tri m5ir iii,i'd nhiEt d0 200 -t 3
9.5.2.? F$iiy khuiy - canh khuiy ciray nang Ci0n cri ki-ia nang khuAy lien tuc mEu th0'ncng chay
vc'it6cci015Cvcng7rnin:,:10vong/rni;-i.l.t.uc113,;khuAycodu,crngkinhs,5mm,cod0dai
', dcrn co thiiir hcp ee ci;t vu,a vdn vao c10ng co khriAy. EQng co'niy du'oc lip vcri cinh kh';3y
cnrelr dai .,1f nrnr r 0.5 mrn. clridir iorrg 3C irnt | 0,5 nrm va chidu ddy 1,5 nrm:i,0,5 rnm. t
' thu'Oc l;) E.S.:.] Coc thi nghiQm - l:rrn t ing thlri tinh chiu nl.:i6t vo't dung ticlr 250 rnl va kich
i,10nirrt(chi0ucao)x55min(,Ju,o'ngl<inii)
:
l
S.S.3..1 ,tJ!iry do - du'c.'c trinh bay o Li-1! ?
$.5.2.5 Khuon n:5tr - lam bing cao stJ silrcon. co diro'ng l.;ir,h xip ri 1C0 rnrr d6 tao miLr hirrh fra.
1 g. 8"5.:.6 Cin - Co khd nSng c3n ict'i 30u g voi dq chinh xdc li
.3.5,3 tliry irinh
,
dAt vac c6cthii'ngfii€in ia) Carr 250 fl ' i0 E ririu du'cc chir|.n.bi1 ri 81 vd
ii:; flieL: chinh rrhiti cO miu ihu'irtng !'lhc.ang c'.2i:0 "a'' 2'C.
aD-._ iJ TCVN 879i:?S'! 1
(c) D6t c6c thu' nghi€m vao trong bo phgn gia nhi€t. Khi nong chdy bA rndt m5u thu' phai ndnr
du'oi be mat.
D6u, neu be dAu du'o-c si'dung:
Vdnh tAm nlr6m n6u nhu'su'dung tAnr nhdm.
(d) Khi m5u nong chdy. ha thAp cAn khu6y trong khodng 15 mm tu' miOng c6c vi Oat Oau khuiy
(e) Duy tri di6u kien thu' nghiern trong vong 6 h, sau do nhdc c6c ra vd rot h6n ho. p trong c6c vio
khuon sach va co ddy phing.
(f) Sau khi vit liQu du'o.'c lam lanh toi nhiet o-9 phong, nhic vit li€u ra khoi khudn, lit ngu'oc no rdi
do dO phdt s6ng theo hu'cvng din o' 8.4.
8.5.4 86o cao kiit qui
o/o.D0 phdt s6ng l6y chinh xAc lsi 1
8.6 Phuong phip xic dinh d6 mii man
8.6.1 NguyOn lf
Thu'c hi€n thu'nghiQm mai mon tren m5u voi tii trong 1 kg, kh6i luo-ng hao hut do rndri nron Cu'Ec
xdc dinh sau 500 vong quay.
8.6.2 Thidt bi
8.6.2.1 M5y mii - Bdrn quay cua rndy mdi s6 quay trdn mdt rnfrt phing nirn ngang Bdn cuay
khong du'gc phep l6ch qud 50prm khdi mat phdng quay vir 1mm tu'ngoai vi bdnh quay.C6 th6 siy
cjung loai nrdy mdi khdc co tinh ndng tu'ong du,ong.
3.6.2.2 B6nh mii - thuoc loai CS - 17 bat nAy ddn hOi
CHU TH|CH B
a) Bdnh mar CS - 17 lbm tu'v6t lreu chuArr co xur hu'o'ng bi cti'ng lai khi lao hoir. Vi vQy di6u quan trcng id cdi
cluoc ph6p su'dung tor cia trong vong 12 thding k6 tu'ngdy sdn xuit bdnh mdri.
b) Th6ng thu'ong dO c0'ng cOa v6t lifu chudn co th6 do clu'g'c bing mdry do dO c0'ng Shore A - 2 Sceie.
Do cung ch6p nhan duoc nirn trong khcang (80 t 5) don vi.
8.6.2.3 D?a qu6t be mAt - loai S - 11 phu hgp vcri miy mdi. Co the su ciUng loai dTa quet b0 niit
phu ho.'p voi loai mdy mii khac co tinh ning tu,crng ducrng.
"i-rongCHU THiCH 9: Co thd thay dTa qudt loai S - 11 bing d\rng cU mdi c6ng kim cu'o'ng. tet cd cac ti'u,ong
hop phdi Canr bao du'o'ng kinh bdnh mai khOng dugc nhi qud'5u'ong kinli ydu clu t6r thi€u (du'oc quy rJinh
bor nhir sdn xudt) '
8.S.2.4 Cin phin tich - cAn to'i 200 g vc'i d0 cl,'inh xdc 0.005 g.
29TCVN 8791:2011
8'6'2'5 86 phin khti' l:ui - 8ao gom mOt bom ciran khong vd 6ng h0t lap khit vcyt miy mii de
loai bOt. vun sinh ra cjo mai rnon.
cHu rlricH '10. T5t cd c.ic mdy do d6 mar nron deu gdn m6t bo kh0'bui ki6u chan khong ireu chuin
8.6.2.6 Tdm rniu thr^+' ngiii,im - bdng nhOm ho6c hoic bdng
ihep t;im mAnr phing cj+t
AS.1580.104.1, kich thuac 100 mm x 100 mm x 2mm co chi6u ddy
dOng nh6t, tac mol td 7 nrnr
tai gi0'a trung tim tdm m5u Oe Oinn vi.
8.$.3 Oi€u ki6n thdr nqhifm
Viic tht. nghi6rn du,oc thu,c hi6n tronE di€u ki€n lim
viec binh thu,ong (du'gc du,a ra irong
AS i580.i01 1
8.0.4 Quy trinh
f6i tni6u thi' nghi€rl2 m€u iheo quy trinh nhu sau
a) Lap rep bdnh mii l6n c6n dat tdi sau do di6u chinh tdi trgng dit tren binh nrai to,i t h:g.
b) Lip dTa quet b€ met s - 11 tr€n bdn quay. sau c'o ha diu mdi xu6ng tu, tu, cho tori khi bdnh
mdi dii vuOng g6c voi <1Ta
cHU i-HiCFr J'i. Mot ba*rr n'iai r-eber Zac co ih6 thay cho 1 dia quei s _ 11.
c) Dit rn6y ddin ve 0 ilho nr:y chay, ra bo mit bdnh nrai tr6n grey iap hat kinr cu,c.r.]g trong
50 vcng Loai bo bot nrai sinh ra do mdi mon bing bo hrit chdn khong hoic bing cach qu,-at irhe
li6n tuc tr€n bd i-rdt' Vi€c ra b$ nrit bdnh mdi du'oc thu,c hien ti-u,o,c khi thd, nghi6m m6i m5u v*
sau m6i 500 vcng mdi lien tuc tr6n mEu thu,nghiQm.
d) Dinh vi miu thdr nghidrn tr€n bdn quay. sau do ha'tu, tu'cau mdi xu6ng cho clgn khi h*nh mii
ddt tr"On lo,p phu vdt ii6u cOa t6ni r.niu.
;' ;::;:';,j:,;;J:.:',;'il;:;;;;;,
hcn dd,a. m., du.ng ria d.u din
idung vo'r hu'o'ng dan van hanh m:iy). Trong su5t qu5 irinh quay, h[t bot sinh ra cto r-na, nhc chan
khong hcdc bang cActi qudt nhe ii€n tUc tr6n b6 nrit tjm ni5u
i) sau i00 vong nriii,dung chdi quet nhe bgt sirrii ra do nrai tren b6 r,rdt vat iieu. Roi derrr c6n
tn5ir vc'i d0 rhinh x:ic tryi C),005 g (A)
t
h) Qirst tai o€ nlat banh nrai nhu.ihqr.c hien o phan c).
cho niiu tiu{p tuc chiu mai th€m 500 vong n0a. Trong qua trinh ihu,nghienr li6n tuc loai bd b.i
lir,t i'a dc", rirai n'ror'r bang cacrr quet i-lhe hoac ir0t chin kirdng.
a)a
TCVhI &791:2011
j) Ket thic thi' nghiem phui sach bui cor-r lr-r'u lai tr6n m5u, sau do dem can va ghi lai kh6i iu'gng
con iai cua mEu sau 500 vong mai (B).
k) Tinh trung binh kh6r lu'o'ng hao hut cua 2 m5u thu'nghi6m.
8.6.5 B5o cio ktit qui
Kh6i lu'o-ng hao hut (A - B) cua 2 nr5u ki6nr tra vo'i sai s6 khOng io'n hcn 0,01 g.
8.7 Phu'crng ph6p xic dinh dQ khing chiy
8.7.1 Nguydn lf
Hai m5u thir nghigm dang hinh non du'oc duy tri o' 40 oC trong 48 h. Sau do tinh phAn trim (70)
chi6u cao miu bi hao hut.
8.7.2 Thiiit hri, dung cu
8.7.2.1 Thi6t bi gia nhiQt, t hQp, 1 thung hay 1 tu s5y c6 khd ning duy tri d 40 oC,t 2oC trong
'
4Bh
8.7.?.2 BQ phrin do - Co khd ning do chi6u cao hinh non miu thu nghiQm, don v! mm.
8.7.2.3 Ch6p non kim loai - 2 khuon hinh non bdng kim loai co ke hd hoic c6 khcrp ndr, chi6u
cao 100 mm J- 5 nrm, ho ddry va co goc d'dinh 60o.
8.7.3 Quy trinh
(a) Dun nong vit lieu thi'nghi6m tor 90 oC t 5 oC tren diern chdy m6m cria no.
(b) D0c 2 mlu thu'nghiQm hinh non tu'v?t liQu trdn sao cho m5i miu co goc o clnh la 60o vir chidu
cao vu6ng goc ld 100 mm t- 5 mm .
(cI Do vir ghi lai chi€u cao cia hinh non chinh xac to'i do'n vi mm
(d) Sau 24h o nhi€t cJQ phong, nhSc m6i m5u ra khoi khudn vd dat thing du'ng tr6n rnci mii phang
ngang bing irong tu sAy va duy tri o'nhi6t dg 40 oC i,.2 oC trong 48 h.
'
(e) Oo vd ghi lai chi€u cao cua hinh non sau 4Bh trorrg lo nung.
8.7.4 B6o c6o ltet qud
Tinh chieu cao hao hut cua 2 milu ciu'oi dqng phan tr5m (o/il.lAy d6n 0,1 %, sau do tinh trung binii
hai kOt qud thu du'crc chinlr !a trung irinh d0 khAng chdy c0a vEt li6u nhi€t d6o.
8.8 Fhuong g:hap xic dinh kh6i !u,cvng ri€ng
8.8.1 Ng.uyen lf
K.h6i lu'o-ng rieng c0a vdi liQu nhiQt rjdo du'o.'c x6c dinh c" 25 oC, bing phuong ph6p do th€ ticir
nu'o'c choarr chO.
31
TCVN 8791:2411
8.8.2 Thiet bi, vit iiQu.
8.8.2.1 Cdn phin tich - Can chinh xac to'i 0.005 g.
8.8.2.2 Binh tf trong - miOng rong co dung tich 25 nrL lam tu'ihu'i tinh bor silicat. Th6 tich cua
m6i blnfr tl trqng phdi du'oc biet chinh xac to'i 0,001 rnL.
8.8.2.3 Nuo'c cAt - vu'a du'o:c c6t.
8.8.2.4 Btl nuo'c - duy tri nhi6t d0 25oC t 0,2 oC.
8.8.2.5 ltd5u thri' nghiQm - lirm tu' nhom, kich cO 200 mm x 200 mm x 2 rr,m voi ;n5u du'o'c
chuAn bi o f. i.
8.8.3 Quy trinh
Thu'c hiOn 2 lAn thu' nghi6m. Trinh tU'thu'nghi€m cho m6i m3u nhu'sau:
- (a) CAn binh t! trqng kho sach kem theo cd n0t binh, gid tri l5y chinh *ac to'i 0,001 g (m,)
(b) NhAc m5u vila tao ra khoi tdm n€n, sau cio dap vqn thdnh tu'ng mdnh nh6 co kich cd cho vu'a
'
vao binh t! irong.
(c) Diii khcdng 20 g vai lieu nhi€i ddo (t6i da li 5 mieng) vio binh tf trqng. Sau do dern cAn cung
.
vcri nui binh, kh6i iu'rrrrg ld (rn:).
(d) Rct nu,c'c c6t vao trcng binh rOi d6 nu'oc ra Ci loai n6t uqt khi Sau-do lai d6 di;u binh, n0t lai
rOi .i6i vdo rndry di6u nhi6t di du'o'c di€u chinh o'nhiet Cg 25 oC t 0,2 "C. Duy ti-i cv tJi4u kiQn niiy
ti'ong t h Oe ninn tf trqng dat d€n can bdng nhiet ci'Q.
,
i
(e) Nh6c binh i! trqnE ra khci mdy Cieu nhi€t, linr khd vd cin lai, khdi lu'crrrg la (m,).
(f) Tinh kh6i lu'qng ri€ng cira vat li€u nhiQi d6o theo c6ng th0'c s 8.8.5.
- ..
''
(g) l(h6r lu,o.'ngrienglatrungbinhc0a2lSnthu'nEhiQm(g/mi) s25"Ctinhchinhxactcvi 0,01 g/ml.
(h) Ldp lqr quA trinh thu'nghr6nr nhu'tr€n n6u nhu 2 kOt quii ch€nh l€ch qud 0,02 g/nrl.
'
(i) KOt qud thu du,cyc tu, c0ng mOt irgi;'o'i thi nghiQm du'Ec coi lA chinh xiic khi 2 ket qud chinh
lech kh0ng qua 0,0? glml.
8.8.4 C6ng thrrc tinh
l) = -- -:- ---":- -
lrl ) - trll
(3)
lil: -- lll-
I' -
0.997
trong dt--
D
ia kh6i lu'gng ri€ng cria 'rit li€ru, tinh bing g/nri;
. tnt. la khOi lu'qng binh tf trong + nut binh. iinh bdng g:
TCVN B79l:2011
nlp la kh6i iu'ong miu * binh i! trong + ntt binh, tinh bang g;
V la the tich binh t! tronE o'25 'C. tinh bdng cmt 1mL;;
i7?3 la kh6i lu'o'ng rnSu + binh ty trong + nut binh + nu,o'c, tinh bing g.
8.8.5 86o c6o k6t qui
Kh6i lu'o-ng ri€ng vit lieu nhiQt d6o la ket qud trung binh 2 thu'nghiQm, tinh bing g/ml o' ZS 'C tAy
chinh xdc d€n 0,01 kg/|.
8.9 Phwong phap x6c dinh dQ ch6ng truot (Phuong phSp con l5c'|
8.9.1 Nguyrin lf
Mot con liic phia du'oi co gan mot tAm cao su. Khi tha con lac va dao dong trdn mit vach scrn
kd du'o,ng, tinr cao su du'oc mot lo xo ti xu6ng mat rrach so'n kd du'crng mOt luc di du,qc dinh truorc vd
s6 tru'o-t tr6n mit vach so'n ke du'o'ng vo'i mOt chi6u ddi du'crng tru'o't quy dinh. Theo dinh lu6t bdo todn
ning lu'ong thi dd cao vdng l€n cda con lic sau khi tru'o.'t tr6n mdt du'o'ng phu thuQc vio mAt mat
ndng lu'ong do ma sat tru'o.t cua con lac voi mit vach scyn k6 du'o'ng. Boivay, c6 th6 tinh du,oc gi5 tri
d0 ch6ng truqt (he s6 ma sdt tru'o.t) SRV cda tAm cao su vcyi mit vach son k6 duong.
8.9.2 Oinh nghia
Gi5 tri dQ ch6ng tru'ot (SRV) le phep do dd ch6ng ma sdt gi0'a l(hOi len cao su vd b6 nrqt
thu'nghiern.
8.9.3 Thidt bi, dung ;g
8.9.3.1 ThiCt bi con lic
Co kh6i lu'qng tu'12 kg den 14 kg (Hinh 2). Citc b0 phin chinh cOa thi6t bi con lic bao gdm:
a) Gia dO la mOt b€ co gdn bot thjytron, co ba ch6n, co the di€u chinh Cuqc OO Odrn bdo truc
thing d0'ng cua thiet bi luon trung voi plru'ong thing dilnE cua cliy dqi. TrUc thing d0'ng cdr
nuni (B) di6u chinh cao thAp de ning ha con lic len xu6ng , tao cho t6m tru'ct ti6p xuc voi 66
nrit thir nghiem theo mOt chi6u dai tru'o-t quy dinh .
b) Diu tren cua thi6t bi co th€ tru'ct theo hai truc d5n hu'ong. Cc mOt num hdm A (ngay phia sau
truc quay c0a con l5c), khi vin ndm ndy co the c6 dinh du'o.'c t6m quay cia con lic d mOt vi tri
thich hop. Diu phia tAm quay cOa con lic co gin c6c vong him ma sdt Oe ni+u chinh ma sdt
cua kim quay .
c) Con t':iac co' ganJ tAm truot ning 1500 g t 30 g. Khodng cdch tu'tim giao dQng tai tr,.ng iim
cua con lac. ld 4l1 mrn r 5 mm. Corr lic co phin i6i trcng co thd di€u chinh du,oc d6 giu'
thdng bdng cho con l5c theo cd hai phu'o'ng. Phiin du'o'i bung cua con lic cc tini tr''+o,t bing
nhom gin cao su. l-i€ th6ng lo xo vd don biy cila con lic s€ cho mot tdi ii'ong trrro't chudn
3:lTCVN 8791:2011
trung binh le 2500 g:r: 100 g, t6c COng lOn t6m tru'o't d€ cao su rOng 76,2 mm vi truy6n xu5rig
bO mit thu'nghiinr Co mOt cAn d€ ning tAnr cao si-r len bdng tay.
d) TAm tru,e't bing nhom phia du'o'i co gin rnQt t6m cao su co kich thu'oc (6,35 x 25,4 x 76.2) mm
(xem Hinh 8.9.2), H-op chAt cao su phdi ia loai cao su tu'nhi6n hoac cao su t6ng hop co ciic
dic tru'ng co hoc quy dlnh tqi Bdng 11. Go cua kh6i !5n cao su phdi vu0ng. mit cdt sach vii
kh6ng bi nhiem bAn. Khong du,oc va cham vdo b6 mit bdnh ldn. Khi khong si'dqng, trdnh lin
phdi du,oc bdo qudn trong bong t6i o' 10 oC + 25oC vd phdi loai b6 khi tuoi thq qu;i 12 thdng.
86nh lin cao su co the du'qc gdn xi ming tr'6n t3m lot nhim.
Khi go bdnh lin bi miri mon qudr 3 mnr theo b€ ngang cia banh idn hodc qu6 1,5 mm theo chi6u
dqc ihi b6nh iin cAn phdi ioai bd
CAc bdnh lin mci phdi ducrc ra b0 mdt tru'c'c khi s0'd1ing bing cach nrai tr€n gi6y rdp P 100 hodc
tren giAy rip tu'o'ng tu'trong di€u kiOn kh0.
Tay xdch
Nrim ( E )di6u chinh vdng ma s5t
Truc din hu;ong cqrm con lic
/''
Kirn chi k6t qLrd do
!"iurr (C ) ham
Thang Cec d0
- - Num diAu ci-rirrh con lic
*''-**"91
0c dieir chinh
Bot thuy tron
Con lic
Qud d6i trqng
Tirn tru'ct cao su
Hinh 3 - Ciu tgo thiiit bi con lic nham
TCVN 8791:2A11
Kich thu'oc tinh bdng milimet
-----il:' ; rr,.,
-)(
Hinh 5 - Thuo'c det do chi6u dii dutrng
Hinh 4 - T6m trwcvt gin d6 cao su {"}}- , q'
DiAu chfnh
Vi tri 1 Vi tri 2
Hinh 6 - KiAm tra viQc didu chinh chidu
dii du'o'ng trug't
Bing 11 - C6c d{c trwng ccr hgc c&a cao su lim tirn tru'st cua ccn l5c
Nhict d0 (T "c)
Cic chi ti6u tht? nghiQm I
i 4U t- 0 l0 I-iru It*- I -l i bb - /J I Cu'ong d0 ch6ng va dip UPKE 42-47 56-62 uo -rt
I BS 903-AB (, ) .r_.-,-_., __. -_ IL. ._
Do cu'ng SHORE (A hoac B ) 50-60
BS 903-47 L'
oC oC8.9.3.2 Nhigt k6 - co khd ning xdc dinh nhi€t d0 bO mit trong khodng 0 to'i 50
8.9.3.3 DUng cu do chiiiu dai du'ong ti6p xuc - DUng cu do bao g6m mOt thu'oc chia d0 morrg
Oe Oo chi€u ddi du,ong ti6p xirc trong khodng 124 mm vA 127 mm (Hinh 5). Nh0'ng OAu vet nen
ngoai va ben trong cr khoing cAch 3 mm co the du-clc b6 qua.
oC;4.9.3.4 Cic dung cu khic - Mgt 6ng dq'ng nu'cvc; mQt nhiet k€ co tharrg chia tu'0 "C d0n 40
do cu'ngbin chdi o'O qu6t sach bii mdt du'crng tru'oc luc thu' nghiQm vd 1 iAm van co kich cO vi
vu,a du de det cdc tfriet bi do thu'nghidm, d0ng thoi d6 cdm i6m gach lat vao b0 nrat tAni vin.TCVtt 8791:2011
8.9.4 ChuAn bi miy do cho ihir ngh!6rn tr6n hign t:'ucrng
8.9.4.1 Di6u chinh con iic c vi tri sao cho con lic co thd dao dong tu' do md khong cham phdi
mi du'o'ng hay cdc bg phan c0a chin va gid do' .
8.9.4,1.1 Con lic du'oc nang len vO phia phdi d'vi tri nim ngang va du'o'c giu lai bang mQt kh6a
co nganh tu'him (C ). Bim nhe nfm khoa him (C )thr/ ki6m tra xem con ldc khi rot co em khong.
Ndu bi nganh khoa k6o mic lai phdi ki6m tra, boi iron lai khoa ham .
8.9.4.1.2 Gat kirn do vd vi tri thdng dt'ng tien hanh thd thri'bang cich bAm nhe num khoa him
md khOng cAn xet ddn vi tri cia kim do, xem hanh trinh dao d0ng, va chanr c0a ccn tac di t6t
chu'a .
LS.4.2 Chirrh ihiet bi v6 s6 "0". Muc dich cua rhao tac nay nhim xilc dinh gia tri dcc c0a kim tr€n
bdng khac d9 khi con l6c vdng tql do ( khong ti6p xirc vo'i mdt duo,ng) xem co d0ng vach "0" hay
khong. Thao tdc ki6m ti'a niry du'o-c thu'c hi€n vdo l0c ddu ca, cu6i ca vd mQt vdi l6n trong qu6
irinh thi nghiQm Oe ti6m tra d0 6n dinh dqc gid tri c0a thi6t b!. Trinh tu' kiem tra ndy du'crc ti6n
h;inh nhu'sau:
8.9.4.2.1 Ou'a thi€t bi v€ vi tri cin bdng qua vi€c o-i6u chinh ba chdn cua gid dO ket hop vcri quan
sat bot thu'r trcn
ti.9.4.2.2 Van l6ng nurn kirtia ham (A) va v5n nret trong hai num di dQng-ciqc (B) d6 nAng cs clu
con iic l*n, dim bdc ccn llc tJao dOng tu' clo kirOng r.re charn vci i;E mit thi nghi0rn; vin num him
(A) chit iar.
8.9.4.2.3 Gat kim dc vd vi tri thdng d0'ng; ti6n hirnh tha thi'con iic bang cach bAm nhe n0m khoa
him (C) cho con i6c dao dQng keo theo l<im do s chu ky chuy€n clOng "di" cua no. Sau cio, l5y tay
giri'ccn idc lAi o chu ky chuydn ddng "v6". Quan sat xem kim c: chi v€ tri s6 vach "0". tr€n bin
khic d0 hay khOng. N6u kim chi tri s6 vach "0" thi quii trinh kiiim tra hodn thdnh, n6u rn0,c ch6nh
i6ch irung binh lo'n vuot qudr 3 cJrvn vi thi phdi no'i lcng n[m (A), van chit hoic noi l6ng nhq nhdng,
'iong rna sat (E), vin chit num hirn (A) va ti6n lrinh thu'iai 'rneo trinh tu'neu tr€n cho d€n khi giao
dong cr;a con lic du'a kirn chi v0 tr! s6 "0" khong bi vu'o-t qud 3 do'n vi.
8.9.4.3 Di6u chinh chi€u ddii du'o'ng tru'gt. Thao t6c niy phdi tlu'qc thu'c hiOn vOi m6i diem thi
nghi€m {xem hinh S). Trinh tr,i'tien hanh nhu'sau:
8.9.4.3.i K6o cAn nang bdng tay cda con lic l€n, dat mi6ng d€m th6p du'o'r vit dieu chinh cua cin
ning; F.ioi iong n0nr (A), vin num (B) de n6ng h9 con lic sao cho tAnr cao su cua con lic ti6p xOc
vu'a chanr voi rnit rhing tru'o. t;
8.9.4.3.2 K6o tay nar-rg cua con lic vi r0t nri6ng d€m thep ra': ha con l5c xu6ng cho d€n khi canh
cua tirn tru'o-t cac su ty vao mit phirig tru'o.'t vA ci hai phia de xac ciinh chi6u dai du'ong ti'u'o.'t.
I'l€ir chi*u rJai nay khOng nam ti'ong l.,hodng y€u cAu 124.5 mm d6n 127 mm thi phii x6c dinh lai vi
TCVN 8791:2011
tri ddt mieng dem thep. Sau do, phdi vi chinh tiOp bing cdch no'i n0m (A), van nhe nOm (B) nAng
ha cum con lic cho d6n khi chidu dai du,o'ng tru'o-t dat y6u cAu thi van n0m (A) him c6 dinh cum
.con lic lai Thi6t bi di di6u chinh xong
8.9.5 Quy trinh do
8.9.5.1 Vi tri th0' nghiQm: tr6n mit du'ong tai vQt xe chay theo hu'crng cung chiOu vcvi chiAu
chay xe. CAn lim sach mit du'crng bing bdn chdi, c6n thiet bang cd nucvc de rira.
8.9.5.2 Lqla chon s6 Oiem thi nghi6m: Thong thu'ong, vcvi m6t doan duoc coi ld dong d6u v6
d0 nhdm, thi chi cAn do 20 vi tri.
8.9.5.3 Dinh vi thiet bi thi nghigm: Dat thi6t bi vir di6u chinh giA dO cv vi tri cAn bdng.
8.9.5.4 Chinh thiet bi v6 s6 "0": Tu,o'i nu,oc sqch ldm u'Ot mit du'crng tai vi tri c6n thu' nghiQm;
.Dung nhiet ke do vd ghi nhiet dg cia nu'cyc tr6n mit du'crng, tai vi tri thri'nghi€m
8.9.5.5 Ning con lic v6 phia phdi, mic no vdro vi tri n0m gi0' con lac (C); gat kim do v€ vi tri
rcri quQtthang d0'ng theo phu'ong cia diy doi ; bAm n0m (C) de the con lic roi tu do, con lic s6
xu6ng mdt du'ong sau do vdng l0n vA phia trdi, keo theo kim do. Du'cvi tiic dung cOa trgng lu'c. con
lA;vldc lai roi quay lai, nhu'ng kim do v5n giu' nguy€n d vi tri cao nh6t khi con lic vdng l€n. Chir f
tay lim ngu'ng chuy,On dQng lu'gt v6 cua con l5c, khong O6 t6m cao su bi,va quet vAo mit do larn
nong mreng,t oem cao su.
8.9.5.6 Ti6p tuc thu'c hi€n theo trinh tU, trdn mQt s6 lAn. 56 dec cOa 2, 3 l6n d5u ti6n chi d€
tham khio. N6u k6t qud d'o 6n dinh, o m6i vi tri do nh6m thu'c hi€n li6n ti6p nim lAn thi con ldc.
Ghi ket qud sqr hi€u chinh vd s6 o oe Xi6m tra, hi€u chinh lai s6 ii€u do vd ghi kOt qud m6ilAn thd.
.NOu gia tri cdrc ldn do vu'st qu6 3 don vi phii lirm lai thi nghiQm
8.9.5.7 Ki6nr tra chi6u ddi ma sat sau khi do nhdm: n6u kh6ng nim trong chi6u ddi cho phep thi
cr-rng phdi loai b6 c6c thi nghiQm dd thu'c hien d€ ldm lai. Lu'u 1i' gi0' sao cho tAm tru'ot trong qud
trinh va qu6t vin giir song song voi mat bing do c0a thiet bi vd phAn di€n tich phia cu6i crja tin7
cao su tiep xric d6u voi b€ mit thO' nghiQm .
CHU THICH 12'Cac thir nghi€m dao dOng li€n ti6p c0a con l5c s6 cho cung m6t gi6 tri ma siit hoic thip
hon. Neu nhu gi6 tri cOa dao dQng sau lai cao hon giii tri cia dao dQng tru'cvc do thi cd th6 vach kd du'ong
dd bi dinh dau hoac m6.
8.9.5.8 Tinh gidr tri trung binh cua 5 lin do li6n ti€p co k€t qud ndm trong pham vi 3 drrn vi
(sRV,)
8.9.5.9 Ghi lai gia tri (t)
CilU THiCH 13: Mdy cio phdi du'o-c c6 dinh an todn trong tru'o'ng ho'p kh6ng sO dung e6 trann va charn vd
dao dOng ciic bq ph6n trong mdy.
3'7TCVtI 8791i2011
8.9.6 C6ng thuc iinh
.\R I
(4)
sRY2o = t:l.ooi:ti- rit)
trcng do .
SRy2c lir giiir iri d0 b6n tru'gt du'c.'c chuin d 20 oC;
SRyr tdr gii tri dO b6n tru,o-t trung binh thu du'gc khi thir nghiQm tai hir3n tru'ong & toC;
t
la nhi€t dO cia b6 mdt thil nghi€m ("C)'
8.9.7 Bio cAo kiit qud
Gid tri trung binh d0 ch6ng tru,g't (SRVro) l5y theo don vi BPN (Briiish Pehdulum Number)'
8.10 Phuong phep x6c dlnh dQ phain quang
8.10.1 l'igui'$n 1t
Su,dung quang re tnicrr ho,p hodc mdy do dQ phdn quang lAy t6i thi6u 5 gid tri vA k6t qia la gi6 tri
ti'ung binh.
8.10.2 Thiet bi, dung cu
,*Juang rri lroqc m6y do dg phin quang - may do d0 phin quang phu hqp vo'i ciu hirih va
nguon sang ntiu'sau.
a) Goc to'i 86,50, goc quan s6t '!,50 vir nguSn s6ng tring'
b) Goc toi 86,50, goc quan sAt 1,50 vdr ngudn sdng di6t d6'
c) Goc toi 88,760,.g.gc quan sdrt 1,050 vdr ngu6n s6ng tring'
CHU TIIiCH 14:
tr.rld,y,tlo do phdn quang du.o.'c s0,ctung d6 do t10 phdn quarig iihico sq'dOng ! cOa ccrn viy€u cdu ihr)'n-chi€m
- ,
l',4dy do d6 phan qLrang duoc chuAn hoa Qtr6c gia
K.hi dung rn6v do dO phdn quang co ciu hinh nhu: muc a vi b n6n cd t6rn chdn anh sdng xung quanh
- Gie tri do rioi v,cicdrc thiet bi khSc kh6ng tu'ong du'cr'ng'
8.10.3 QUY trinh
Ouy irinh thu'nghiQm nhu sau
(a) Khoi dQng nriy theo dung hy'o.ng d5n vin hanh'
(b) Trong pham vi v6t xe !dn do it nhit 3 gid tri tai goc phdi v"i'hai di€m trv'c di€r-r'
tc) Ghi lai tAt cd c6c giA tri
JO
TCVN 8791:2011
8.10.4 Bio cao kiit qui
Ket qud la gia tri trung binh cua cac phep do, tinh bdng Imdc lx m
21
8.11 Pht-r'crng phrip xic d!nh chidu day mang son
8.11.1 Thi.it bi
8.11.1.1 Micromet loai khung rOng vo'i khodng dAu do it nhit 10 mm vi co khd ndng do toi do
.
chinh xdc 0,01 mm.
g.11.1.2 TAm kim loai co dO day t6i tfrieu 1,5 mm va co kich thucrc t6i tfrleu 300 mm x 50 mm, rQng
ho'n vach du'ong du'o-c rai.
8.11.1.3 Cin co dO chinh xdc toi 0 1 g
8.11.2 Quy trinh
:
8.11.2.1 Y6u ciu chung
Khi thU,c hi€n xdc dinh chi ti6u ndy trong didu kien idm vi€c binh thu'crng, cdc m5u phdi du'oc lAy c) cdc
vi tri c6ch nhau it nhAt la 3 nr.
8.11.2.2 Chuin bi mIu
8.11.2.2.1 Chu6n bi ba mAu, m6i miu khong ngin hon 300 mm va dO thiet bi rdi ou'crng r"di vat lieu
so'n vach du'ong 16n tAm kim loai
8.11.2..2.2 Do c10 ddy cua vach ke du'o'ng tr€n mot du'ong thdng ma vach kd du'crng chu'a du'g'c rai
hat ih0y iinh i6n b€ mit theo quy trlnh do du'oc mo td o 8.1 1 .3.3.
8.1 1.?.3 Quy trinh do
8.11.3.3.1 CAn tAm kinr loai to'i dg chinh xac 0,1 g.
8.11.3.3.2 Xirc ciinh kh6i lu'o'ng cua m5u vo'i d0 chinh x6c 0,1 g, vd do chiAu Cai va chi6u rong cria
miLr voi dO chinh xac + 2 mm.
8.11.3.3.3 Tinh di6rr tich m5u
8.'i1.3.3.4 Dung phu'ong phdp quy dinh trong tidu chuin nay d0 x6c dinh ty trgng tu'ong d5i cia'rit
li6u va tinh d0 day cria i,ach.
8.11.4 Ba6 bad k5t qui
Eqc cdrc gia tri trrin nricrcnret (it nhAt 1O gi5 tri tr€n m6i tim) Oe tinn giii tri trung binh trtin ba tAnr thdp
du'sc xdrc dinh.
jv
TCVN 8791:2A11
8.12 Phucrng phap x6c dinh c5c chi ti€u thrl'nghi$m hien tru'o'ng
8.12.1 NEuyOn lf
D6nh gia chAt lu'ong vach son nhi€u d6o du'o-c vach tren du'crng sau mot khcdng thcri gian
xdc dinh, khi t6ng luo'ng xe chay qua v€t son d6n mQt gid tri xdc ciinh b5ng cdc phu'crng ph6p
du'o-c dO cip cr phAn sau.
8.12.2 Vi iri thu nghiQrn
Chon doan tuy6n duong thang, khong 16 nhdnh, co lcp phu mit la be t0ng nhu'a hoic b6 t6ng
xi ming, mat ciQ xe ch4y trong khodng 1500 xe/ngdy d€m - 600 xe/ngiiy d6m (tu'o'ng du'ong voi
lu'c'ng xe chay qua vach son ia 1.500.000 xe trong khodng tho'i Eian tu 3 ih6ng r 9 thdng) d€
th0' nghi$m. Ti€n hanh thi cong cac vach son nhigu cj€o ihdnh nlrO'ng vet kd ngang du'o'ng voi
dO day quy dinh.
8.12.3 ThiCt b!, dgng cq
8.12.3.1 Thi6t bi kA dirong - thiet bi k6 d'u'cyng bring tay hay tu'dOng, co khd ndng tao duong
kd kich thu'o'c (3 10,1) rn x (150 t 1O) mrn, mdng ph0 ridng nhdt vo'i rJQ ddy 1,5 mi;i; 1,8 mm.
8.12.3.2 TA:n nin th*'nghi€rn - t6i iiri€u li 4 t*nr vo'i kich thuo'c quy dinh la 300 mm x 100 mm,
r1u'o-c larn tu'thi€c hcic nh0m.
8.1?.3.3 Tric vi i.d - tfruQc loai ciu ti'ic sAu voi phAn cli6n tich thing-tOi thiOu la i0 mnrz vd co
khd iring do chinh xdc to'i 0,01 mm.
8.12.3.4 D{rng cg do nhi+t dQ - dirng cti tirich hqp dd do cdc gid tri d'o nhiQt d0 trung binh
khcng khi vd nhi€t d0 mit du'ong tai tho'i di6m thi cong.
8.12.3.5 Cac thitit b! vi lrirng rao an toin - cAn.thi€t de di€u khi6n giao thOng va d6 bdo ve
du'o'ng ke th[' nghi6m trong su6t qud trinh thi c0ng vd qud trinh dong rin vit li€u nhi€t ddo.
8.12.3.5 M31'do d6 phrin quang - phu ho'p de do gia tri.tai hiQn tru'ong.
t
Ci'iU THiCH 15 lfid'l do dO phdn quanE cin co cdc tinh ndng tu'ong du'ong vo'i lcar i'/iirolux 12.
g.i?.4 Quy trinh thi c,ing
(a) D1i'ng hang rao an toin, cac ban hieu va trir non ngdn cach dd phiir iuOng giao thong khdi ','i
iri thu' nghi€nt
(b) Nhi+t dQ khdng khi nim trong klicing 15 oC : -10 "C vd nhift d0 mat du'ong khong cluEc nh6
hon 1C "C. Ghi lAi tii ca c*c du iiQu nay va b*t ky mOt hi€n tu'crng tho'i tiet tai thoi di6nr thi cOng.
(c) i-au sach i6t'ca cac hat bui ndng, irc'i Am, c6c chit !a xung quanh khu vu'c thil nghiem.
,+v
TCVN 8791:?.A11
(d) Ddt mOt tAm thi' nghi€m ngang qua chiiu i'ong vi6n ngodti cua du'ong ke, m6i vung thi'nghi6nr
rOng khodng 300 mm. Ddm bao ring cac tim thu' nghi€m ndy khOng xAm pham vao vung danh
gi6 vir khong dnh hu'crng to'i d0 day mdng son.
(e) Ddm bdo nhiet d0 c0a vat lieu ke du'o'ng nhiet ddo trong n6i nAu phu hop voi hu'ong cjSn cua
nhdr sdn xuAt va ghi lai nhiet d0 cia n6i nau.
du'o-c rdi(0 eat Oau tu dAu lA duong c0a vung thi'nghiQm, thi cOng 4 ddi kd du'ong trong do co2dAi
vo'ihat thu! tinh tr6n be m?t vcri ty le 325 g/mzt 25 glmz. C6c ddi kd co chi€u rQng 150 mm t 10 mm
d0 day chi dinh la 1,5 mm ': 1,8 mm.
(g) Sau qud trinh dong r5n vat liQu nhi€t d6o khong phu hat thuf tinh, ki'3m tra lai d0 dAy cria vit
tiQu dong rin bdng tric vi ke Lay drl c5c s6 do 1t6i tnieu ld 10 phep do) cho phep d0 day trung
binh du'oc xdc dinh.
(h) Chi d6nh gi6 nh0'ng vach k6 dat chi6u ddy quy dlnh
(i) Ddrnh dAu hoic ddnh d6u d6 nhin dang cdc vach k6.
(j) Xet tnUc c0ng vi6c, quan sat bing mit ki6m tra nh0'ng l6i thi cong tr6n vach k6.
giao(k) Sau mQt khodng tho,i gian t6i thi6u th, nh&c vi dqn tAt cd c6c hirng rao an toAn cho ph6p
th6ng qua lai tu'do trOn vung thi' nghiQm
8"12.5 Quy trinh d6nh gi6'
9.12.5.1 DQ phrin quang - Sau t6ng s6 300.000 vdr 3.000.000 luEt xe qua lai do d0 phrin qr-rang
cua du'o,ng kd thfl nghiQm tr6n cung mOt vi tri v€t xe ldn thu'c hi6n theo 8.10.
8.12.5.2 OQ mii rndn - Sau 3.000.C00 lu'o-t xe qua lai, phu'ong phep d 8.12.5.2.1 (Pnu'ong phap
rl).ve 812.5.2.2 (Phu,ong phdp B) d'uo,'c su'dung Oe Oann gia dQ mdi mon cria du'o'ng kd thir
nghiem kh0ng chu'a hat thuy tinh.
8.12.5.2.1 Phueng phap A - Phu'ong phap dung bo dnh chuAn
Dung cu: BO iinh chuAn (Hinh 8.1 vir 8.2 - Phu lUc B), bdn chdi m6m vdr nuc/csach.
(a) Lim sach vach kd du'ong bing nu'o'c sqch vd bdn chdi mdm, sau do de kho.
(bl Cni dinh hai ngu'cri thi nghi€m vi€n ldm viec CQc l3p voi nhau, x6c dinh dnh nAo co hinh thfrc
gin giong vo'i thu'c trang cOa du,ong kd th& nghiQm. Dung phep nQi suy tinh ra ty lQ trung gian
giu'a hai b[r'c dnh.
(c) So sdnh k6t qud cda hai ngLroi tlri nghi€m vi6n. n6u kh6c nhau tr€n 5 % thi lirnr lai ddn khi kei
qud dat ilu'o-c xhac nhau ciu'oi 5 %.
(d) Ghi lai c10 mai nron cua vaclr k6.
,i1TC /l.l ii791 2$'11
Phu'o'ng phdp ke d8.4.2.5.2.2 Fhu'ong phip B -
(a) Lam Am mQt nila vach kd thri' nghiQm bao gdm cd phia ngoiri vach bdng riu'oc sach. Sau Co
dung bdn chai cu'ng qu6t sEch bui bAn bdm trdn bd mat.
(b) Det lu'c'i o vuong tr€n du'ong kd thu' nghiQm bao trum l€n toan bO v6t xe lin.
(c) Chi dinh hai thi nghi€m vien lAm vi6c dQc lap, d6nh gie d0 rndi mon cua m6i o vr.rcng tu'ong
ung voi ty le du'a ra d' Bdng 12 vit ghi lai s6 cAc 6 vu0ng trong mdi hiing iren hring s6 IQu tei hien
tru'o'ng (Bdng 1 1)
(d) Khi nh0,ng d6u higu tru'o-t hodc nhu'ng dAu higu khOng mdi mon khic khi6n cho vi€c danh giri 6
vuong trong mang rit kho khiin (do cdc o vuong do bi nhiSni ban). Ghi lai c6c k6t qud c0a nh0'ng
o vudng co th6 ddnh gid du'crc vA mo' rong mEng lu'oi tu'cng ('ng vcri.-Hinh 7 de c$ng th€m c4c
0 vudng rnoi cho s5 t6ng cOng cdc o vuong l6n to,i 20.
(e) Tintr chi s6 mdi mon nhu'sau:
\- I'ihAn s6 cdc 0 vu6ng cv rn6i hdng vo'i voi hQ s6 gia ting tu'orng u'ng o' hdng do
mon- Cong ca 4 iOng nho o m6i hang s5 co chis6 mai
Lay trung binh kdt qud thu du'q'c
-- Ghi lai kdt cru;i c0a irai thi nghlii-n vien r,,a tay L6t qud trung binh.
Ld dLlo'nq
Vi tri g0c ltr'cvi 6 ,ruOng
Flinh 7- 6 thi'nghiern
E.12.5.3 80 phit sing - Sau 3.000.000 lu'c,'i xe Oiqua, r1o dO phdt sdng cia vach kil tr-rcng ung
vc'i 8 4 va ghr lai k6t qui.
Bing 1'l - Circ bfrc dinh giii tu'lu'c,'i c iruong
Phin tram (%) v5t liSu nhiQt cjrlo iu'u giir'!3i tr6:'r vqci: k,i i'lg s$ gia tang
>75 x1
< 75 va :-:: 50 x1
I x3 :50va.:25 -j __t--_
_25 iITCVN 8791:2011
Bing 12 - Bing thir nghiQrn hi$n trwdng
8.12.6 86o cao ki5t qui
(a) NhiQt dQ trung binh cao nhAt trong ngay, iuqng mua trung binh hAng th6ng ghi iai tram
Kn!
tu'qng gAn nhit trong su6t qu6 trinh thu'nghiQm
(b) D0 phin quang cua vach du'ong thu nghiQm c6 ch#a hAt thuy tinh sau khi cho 300.000
\./a
3.000.000 lu'cvt xe di qua.
(c) D0 phdt sdng do du'qc sau 3.0p0.000 lu'gt xe di qua.
(d) Ket qud d6nh gia dO nrai mon the hien du'oi dqng b?c dnh O6i cni6u (phucrng phap suy tu'
b0
anh ii6u chuin) hay chf s6 nrai mon.
8.13 Phuung ph6p x*c d!nh di6m chiiy mirm
8.13.1 ThiCt bi thi nghiQm
B.'l 3.1.1 Khu0n rnAu
Hai v*rnh khuy€n tron chuin bang ding co duong kinh trong 15,9 mm i 0,3 mm vA chi,5u cac
6,4 nrm r 0.4 rnm de chua son nhi6t deo.
8.13.1.2 'Bi thep
Hai vien bi thep trdn co du'c'ng kinh 9,5 mm {- 0,03 mm, ning 3,50 g i 0,05 g.
<,i J
TCVN 8791:201tr
8.13.1.3 Vong din hu'ong
Vong din hu'o'ng cua bi th6p co 3 hodc 4 vit d€ dinh tini.
8.13.1.4 Khung treo (Gi6 treo)
Khung treo dti gi0' khuOn chu'a mAu vong d5n huong vii bi th6p r"rgip lo lilng trong binh ch0'a
ethyiene glycol
8.13.1.5 Binh ch0'a ethylen glyccl.
Binh thu! tinh chiu nhiQi co ciung tich 800 mL d0 chua ethyleng lycol.
8.13.1.6 Dung cu cip nhi0t
36p c6n hay dau hod co lu'oi amidng, di6u chinh du'qc nhiet d0-
L
,l
- :
ii.1 3.1.7 Nhiet k6
Nhiet ke thtly ngin 200 oC, co vach chia sai s6 t6i ea 0,5 oC.
8.13.'t.8 Dao cit
Dao dung A0 cit r:.hang mit nrdir son nhi6t de o.
A.13.1.g \,ril lioirj vir hod chjit c!;-r c..:rrg
- Ethyte n glycol co diim sOi giu'ri 193 "C d€n 204 ''C;
- \raz-o'iin {glixerin) de b6i tr:o'n;
- t lu'oc di.
S.i3.2 Chuin bi :"n5u
B.tj.Z.1 Dun nong m5u son nhi€t d6o c5n thQn sao cho kh6ng de nong chdy cuc b'0, khu6y d6u
dii trarih tao bot khi. Niiiet d'Q dun nong khong qua 50 oC so vcri nhiQt d0 hod m6m dW kien vat
khOng du'o'c o-un m6m qud 30 min
t
B.'i3.Z.Z Di:r 2 vonq leri ban ddy co bOi tron bang vadclin. D6 so'n nhiet ddo dd dun vaoZ vcnc cho
dAy. CIO ngir0itrong khOng khi 30 min, sau d'o dung Cao nong gqt phang mit m5u son nhi€t Cr3o.
S.13.3 'li:i nghi6nl
8.i3.3.1 Dd eihyien glycol vao bini-r thuy tinh vo'i chi6u cao clung dlch khodng 105 mrn j 3 mrn.
l
LAp li,iiuon rniu, vong din hr-r'ong bi thep vh nhiet k€ vdo gid treo. Ngim gii treo vio binh sao cho
.
l
rnit lren t<huon nriu cach mdt tren cia dung dich ion hcvn 50 mm vA mdt duo'i miu cich d6vd0rrg
.
5,06 m,.ir. -I'rac nnir3t k6 sao cho biu thuf ngdn ngang ci6y rrcng rnSu nhu'ng khong cham vtng.
:
:
8.13.3,2 Dr-ry tri nhiet rJ$ ciia dung dich trong binn cc chu'a';ong m5u o'nhiet dQ quy Sinh 1oC
tronE f l mi1 oing c6clr thicir ho-p (cle binh ti-ong thung nu'o'c dd). Sarr do ciung oarrh kep du'a vt6tr
,tr,7'
TC\IN 8791 :7011
bi d6 lam lanh tru,cic do vao vi tri vong din hu'crng tJit phia tr€n khuOir m5u. No'i cac vit cia vong
dAn hu'ong sao cho vi6n bi nim dung i'giu'a mit m5u.
oc oC/min. I 0,5 t5t ci thi nghi€m ma trong8.13.3.3 Gia nhiet o d6y binh vo'i t6c d0 6n dinh 1 t
do vi6c tdng nhiQt dO qu6 gioi h4n cho ph6p d trdn dOu b! loai
g.13.3.4 Ghi tai nhigt dO hod rnOm cua m6i mot trong 2 vong va bi ma cv thoi di6m do vi€n bi boc
son nhi6t d6o roi cham to'i tAm d6y cia giA treo.
8.13.4 Bio c5o kiit qui thi nghiQm
dO hod m6m cua2 vong vir bi.g.13.4.1 Bdo cdo chinh xacto'i 0,5 0C s6 tieu trung binh nhiet
saig.13.4.2 N5u su, ch6nh lech v6 nhiet d0 hoa mAm cla 2 vong vir bi.(trong 1 lln thi nghigrn)
khic qu6 1 oC d6i vdi nu'oc vA2oC O6i vOi ethylen glycol thi phdi ldm lai thi nghiQm.
8.13.4.3 Trong k€t qud phii ghi 16 loai dung dich niio du'gc su dgrng. K6t qua thi nghi6m nhiet dQ
ho6 m6m khi sr] dUng ethylen glycol sai khiic so vcri sfr dUng nuoc cAt theo cOng th0'c:
SP(nu'crc) = 0.974118 x SP(ethylen glycol) - 1'44459oC
t*5TCVN 8791:2011
Phu luc A
(Tham khdo)
Huo,ng d5n l5y m5u
A.1 Pham vi ip dyng
phAn ndy trinh bdy quy trinh l5y nrSu ihu'nghiQm cho son vach du'o'ng nhi0t deo.
A.2 Nguydn lf
Bdng mQt c6ch tAy mlu thich hqp AS.1142.3.1, m5u phdi du'oc lAy ra tLr thi6t bi sdn xu6t tu'crng
ring voi phAn A.3.1 cho cdc v4t liQu tdn thinh bQt hay phAn A.3.2 ciOi vo'i viit lieu d6ng kn6i.
/-1.3 Quy trinh
nhi6n tu'cung mQt'm6 sdn phim. Bing A.3.1 Vgt tigu tin thinh bQt: Chgn 3 tui vit iiQu ngiu
cdch su,dung miiy chia mlu co mOt khe ho'cu'c dai khoang 50 nrm AS.1142.3.1 l5y ra tu'm6i tui
: I "!: --t..comau kh6i lu,ong khodng 2 kg. Phdi tr"$n cd 3 miu vdro mot thung s?ch du'qc din mol ^3 mau,
nhin 16 ring vcri nhfi,ng chi ti6t co liOn quan nhu': nhdr sdn xuAt, s6 rnd, ngay san xrrit. Lu'u giti'
phAn con lai or 3 t0i cho d6n khi cAc thu' nghiQm du'oc hodn thdnh.
,q.3.2 'rr{t ligu d?nE khrli: LU'a chqn sgEu nhi6n 3 iirung v?t li$u rrhiOi dtio l3y ra tu' t't'i0t m6. DAp
khOrrg 'Jdrrg vun cac li6u trong cd 3 thung trGn, loai bo nir['ng rndnh mi bing nrdt nhan thiy 'rat
liQu trong rnii tirung, phoi i6u vii cd c|ri t:'uc vi nrAu sic. Liy mOi phan khOng nho hc'n 2 kg vgt
tr6n cd 3 phAn trQn vio trong mQt thung sAch co dan nhin ro ring voi c6c chi tiet li€n quan nhu'.
ngucri sin xuAt, s6 m6, ngdy siin xuAt. KhOng du'qc gia nhi$t irong su6t qu6 trinh lay m5u.
hodin chinh. Lu,u gi1, phAn con lai kh6ng sri, dUng cr cd 3 thung cho d6:r khi cic ilr0' nghi€m du'qc
'Dor ra tu'cung mOt s6 m6. voi cac vit ii€u dic tru,ng, lqra chgn ng6li nhi€n ho'n 2,5 kg vit li€u l6y
A.3.3 Din nhSn'. Citc mflu ph;ii du'o'c nhQn darrg mOt cdch 16 rang bdng cdctr dan nhin tr€n
tlrung co ghi nh0'ng chf dAn sau
(a) Dang sdn phdm
(b) 56 rne
(c) Nsay liy m5u
tirr bd sung Hon n0'a, nhirng thong tin d6 nhan clang rnSu phai dU'a tr6n cach thiic liy miu. Thcng
bao g6m
(a) Nguo'i l5y m5u
(b) Dia diSnr vi ngay IAY nriu
(ct S6 lulo. ng vii li€u chu'a trong niiu
(cl) Sc thirng liy mirr hay slir xe van chuy6n n'ra tit: rio r;riu iitt'oc iAy ra.
.ATCV${ 8V91:2Q11
Phu luc B
(Tharn khao)
MO ta miu chuAn
J.i
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Hinh 8.1 - Dien tich vach scyn cdn lai 95-9i
\t
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.:h
a
Hinh 8.2 - Di6n tich vach son con lai 90 %
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