TCVN

TIÊU CHUẨN QUỐC GIA

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TCVN 9377-1 : 2012
Xuất bản lần 1

CÔNG TÁC HOÀN THIỆN TRONG XÂY DỰNG –
THI CÔNG VÀ NGHIỆM THU
PHẦN 1: CÔNG TÁC LÁT VÀ LÁNG TRONG XÂY DỰNG
Finish works in construction - Execution and acceptance
Part 1: Paving and smoothing works

HÀ NỘI - 2012

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TCVU 9377-1 :2012

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MUC LUC

1

Pham vi ap dung .............................................................................................................................5

2

Tai lieu vien dsn ...............................................................................................................................5

3

Thugt ngi. va Binh nghia..................................................................................................................5

4

C6ng tac 1st .............,........................................................................................................................6
1

.

4.1 Y6u cau ky thua..............................................................................................................................6
4.2 Quy trinh thi c6ng ............................................................................................................................8
5

C6ng tac lang ................................................................................................................................ 12

5.1 Y6u c%ukg thuat............................................................................................................................12
5.2 Quy trinh thi c6ng .......................................................................................................................... 14
6

..


Kibm tra va ngh~emthu .................................................................................................................. 15

6.1 Kibm tra ..........................................................................................................................................15

...

6.2 Ngh~emthu ....................................................................................................................................16

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TCVN 9377-1:2012

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Lbi noi dAu
TCVN 9377-1:2012 du$ chuy&n d6i tiu TCXDVN 303:2004 phan 1 thanh

Tieu

chub

Q U ~ Cgia

the0 quy dinh tqi khoHn 1 Dibu 69 clja Lu$t Tieu

c h u h vA Quy c h u h kq thugt va dihm b khoHn 2 Dibu 7 Nghj djnh s6
127/2007/ND-CP ngay 01/8/2007 clia Chinh p h i quy dinh chi tiQt thi hanh
mQts6 diiu c i a Lugt Tieu c h u h vB Quy c h u h kg thugt.

TCVN 9377-1:2012 do Vign Khoa h ~ CBng
c
nghg X i y dung

- Be X i y

dvng bien soqn, BO XPy dvng d& nghj, ~ 6 n g
cuc Tieu chubn Do luwng
ChAt luqng t h h dinh, Bo Khoa h ~ va
c CBng nghg cdng b6.

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TIEU CHUAN Q U ~ C
GIA

TCVN 9377-112012

C6ng tac hoan thien trong x8y dyng - Thi c6ng va nghiem thu
~hAn
1: C6ng tac Iat va lang trong x8y dyng
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Finish works in construction - Execution and acceptance
Pad 1: Paving and smoothing works

1

Pham vi ap dung


Tieu

chub

nay quy djnh cac ygu chu kv thugt chinh va hWng d2n trinh t u d6 thi cdng, kiem tra va

nghiem thu chit llvqng cbng tac IAt va lang trong cAc cdng trinh x5y dung d5n dung va cbng nghiep.

2

Tai lieu vign dan

Cac tai lieu vien dan sau la chn thikt'cho viec ap dyng ti& c h u h nay. O6i vwi cac tai lieu vien dan ghi
n2m cbng b6 thi ap dung phien b5n dlvqc ngu. O6i vwi cac tai lieu vign dan khbng ghi'n2m cbng b6 thi
ap dung phi& b5n mbi nh%t,bao gbm c5 cAc s&a d6i, b6 sung (nku co).
TCVN 1450:2009, Gqch r6ng da"t set nung.
TCVN 1451:1998, Gach dec da"t set nung.
TCVN 4314:2003, VGa xBy dvng. Y6u cdu kj7 thuot.
TCVN 4732:2007, 0 8 dp /at t v nhign.
TCVN 6065:1995, Gqch xi mBng 1st n6n.
TCVN 6074: 1995, Gqch /at granito.
TCVN 6476: 1999, Gach be t8ng tw chen.
TCVN 7745:2007, Gqch gdm dp 1st ban ep kh8. Y6u cdu kj7 thugt
TCVN 7960:2008, Van san g6. Ygu cdu ky thugt

V@tlieu lat (Paving material)
Gach Iat va t%mIAt.

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TCVN 9377-1:2012

Ggch lat (Paving brick)
Ggch xi mang, ggch dat nung, ggch ceramic, ggch granit, Ba t t nhien,
~
da nhin tgo ... dung B& Iat.

Lwp n&n (Basal layer)

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Lwp nam ngay dwwi lwp Iat hoac Iang.

M+t Iat (Paving surface)

B& mat Iwp Iat sau khi d%hoan thien.

M4t lang (Smoothing surface)

B& m$t Iwp lang sau khi d%hoan thign.

Vgt lieu gan kbt (Material for adhesives)
Vat lieu dung d& gan k&t vat lieu Iat vwi Iwp n&n.

Mach Iat (Joint)
Khoing cach giGa cac vien ggch Iat hoac tdm Iat k& nhau.

f


~ h hlam
t d i y mach (Sealant)
Vat lieu lien k&t lam dAy mgch Iat.

4

C6ng Mc lat

4.1.1.1 Ggch Iat, tdm Iat phPi dqt yeu CALI k9 thuat v& chat Iwqng, chdng log( kich thwwc, mau sac.
4.1.1.2 Vat lieu gan k&t p h i i d i m b i o chat Ivqng, n&u thi&t k& kh6ng quy dinh thi thyc hien the0 yeu

cAu cda nhd s i n xu& vat lieu Iat.

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TCVN 9377-1 ~2012
4.1.2 Lwp n&n
4.1.2.1 Mgt I&p n&n phii d i m b5o p h h g , chAc ch&n, 8n dinh, co do bam dinh vwi vat lieu g%nkkt va

dwwc lam sach tqp chht.
4.1.2.2 Cao do I&p n&n phu hqp vwi vat lieu Iat phlj bgn tr6n. Do dbc clja lwp n&nthe0 y6u cAu ky thu$t.
4.1.2.3 Vwi v$t lieu g%n kkt la keo, nhva ho$c t&m Iat Bat trvc tibp I6n lwp n&n thi mat lwp n&n phii
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d i m b i o thoi m%ny6u cAu n6u trong B5ng 1 clja ti6u c h u h nay.
4.1.2.4 Trwwc khi IBt ph5i ki&m tra va nghiem thu lwp n&n va cac b0 phan bj che khuht (chi tiQt ch6n

s&i, chbng thhm, he thbng ky thu$t v.v ...).

4.1.3 ~ h AIvqng
t
1&p lat
4.1.3.1 Mat Iat phii d i m b i o cac y6u cAu vk do cao, do phang, do dbc, do dinh kbt vivi lwp n&n, chi&u

day v$t lieu gAn ket, b& rong mach Iat, mau SAC,hoa vin, hinh dang trang tri ...
4.1.3.2 NQU m$t Iat la cac vi6n da thi6n nhign, ngn chgn dA d&cac vi6n k& nhau co mau s i c va dwwng

van hai hoa.
4.1.3.3 Vwi gach Iat dirng viva lam v$t lieu g4n kQtthi viva ph5i dwqc t r i i d&u tr6n lwp nQnd&d5m b i o

giiva vi6n gqch IBt va lwp n&n dwqc lot dAy viva.
4.1.3.4 M$t Iat clja tam san g6 kh6ng dulqc co vbt nni, cong vgnh. M$t Iat clja thm Iat m&m kh6ng

d~vqcphbng rop, nhin nheo.
4.1.3.5 Vwi cac vi6n Iat ph6i cst, viec c%tva mai cac cqnh phii b50 d i m dwQng c4t ggn va mqch ghep

,

phing, d&u.
4.1.3.6 Mqch giiva cac vign gqch Iat va giiva gqch IAt vwi tWng phii dwqc Ihp dhy chAt lam d8y mqch.
4.1.3.7 Dung sai tr6n m$t IAt kh6ng vwqt qua cAc gia tri ygu c8u trong Bing 1 va Bing 2.

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TCVN 9377-1 :2012

-


Bang 1 Dung sai cho phep
Khe h b vwi

Dung sai

thvwc 3m

cao do

Gach x i y d i t set nung

5 mm

2 cm

0,5 %

Gqch Iat dht set nung

4 mm

2 cm

0,5 %

Da tw nhien khbng mai m$t

3 mm

2 cm


0,5 %

Gqch Iat xi ming, granito, ceramic,

3 mm

1 cm

0,3 %

3 mm

Icm

0,3 %

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Logi vQt lieu Iat

Dung sai do d6c

granite, da nh2n tqo
Cac loai thm Iat dinh hinh

-

Bang 2 Chgnh lech do cao giiia hai mep vQt lieu Iat
Loai vat lieu Iat


ChQnhlech do cao

Gqch x i y d i t set nung

3,O mm

Gach Iat dAt set nung

3,O mm

Da tl,v nhien khbng mai m$t

3,O mm

Gqch Iat xi ming, granito, ceramic, granite, da nhin tao

0,5 mm

Cac loai t i m Iat dinh hinh

0,5 mm

-

4.1.4 An toan lao dong khi Iat
4.1.4.1 Khi Iat phii tuin the0 &c quy dinh hien hanh v& an toan lao dong, an toan phong ch6ng chay n8.
4.1.4.2 Vwi vat lieu Iat d6 b i t lrjla nhv: g6, thim, keo dan ...ph i i co bien phap phong chay trong qua

trinh thi cbng.

4.1.4.3 Mbi trvwng lam viec p h i i thbng thoang, co bien phap chdng n h i h doc do hai clja v$t lieu Iat,

vat lieu ghn kbt g i y ra.
4.2

Quy trinh thi c6ng

4.2.1 Thi c8ng Iat gach

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TCVM 9377-1:2012

Dung day cSng, ni v6 hoac may trAc dqc ki6m tra cao do, do phang, do d6c cda mat lwp n8n.

in cac m6c cao do Iat c h u h , m8i phong co it nhht 4 m6c tqi 4 goc, phong co dien tich lwn m6c g i n
the0 Ivwi 6 vu6ng, khoing cach giOa cOc m6c kh6ng qua 3 m.
can danh dhu cac m6c cao 66 tham chibu 6 66 cao hwn mat Iat Idn tvwng hoac cot d& co c i n c6

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thvwng xuybn ki6m tra cao do mat Iat.
4.2.1.2 chudn bj gach, 1st

Gqch Iat phii dvqc lam ve sinh sqch, kh6ng d6 byi b%n,dAu ma, cac chht lam giim tinh kbt dinh giOa
Iwp n&nvwi gqch Iat.
Vwi gach Iat co k h i ning hut nvwc tir vat lieu kbt dinh, gqch phii dvqc nhung nvwc va v&t ra d6 rao
nv&c trvwc khi Iat.
Gqch Iat phdi dvqc nghiem thu the0 cac tibu chu%nvat lieu tvwng 6ng. Trong tidu c h u h nay gqch Iat

la cac chling loqi sau diy:
-

Gach x i y dht set nung TCVN 1450:2009, TCVN 1451:I998
Gach Iat g6m trang men TCVN 7745:2007

- Gach Iat xi mZing, granito TCVN 6065:1995, TCVN 6074:1995

4

- Gqch bd t6ng ty, ch6n TCVN 6476:1999
- Da 6p Iat ty, nhidn va 0 9 6p Iat n h i n tqo co th& tham khio TCVN 4732:2007, hoac the0 y6u tau clia
thibt k6.

CHO TH~cH:~ bvdii gqch IBt 18 diva vA gqch IBt d$t set nung, tharn kh5o tigu chuan hign hAnh.
4.2.1.3 ~ h u d n
bj vgt lieu gan kbt

Viec pha tron, sljl dyng va b5o qu5n vat lieu g i n k6t phHi tuin the0 yeu chu c i a loai vat lieu. Vat lieu
g i n k6t co th6 la vOa xi mSng cat, vOa tam hqp, nhy,a polyme hoac keo dan.
Vwi vat lieu g i n k6t la vOa phii tuin the0 TCVN 4314:2003.

c A ~c h u h bj dAy dli dyng cy cAn thi6t cho c6ng tLc Iat nhv: dao xiy, bay Iat, bay mibt mach, thvwc
tam 3 m, thuwc rrit, bua cao su, may cat goch, may mai gqch, dyc, ch6i dot, giC lau, ni v6 hoac may
tric dqc.
Dyng cy can day dli va phh hqp vwi ybu cAu thi c6ng cho tirng thao tac ngh& nghiep. Dung cy da h v
h6ng va qua ca, bi mon, kh6ng d i m b i o chinh xac khi thi c6ng kh6ng dvqc sljl dyng.

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TCVN 9377-1 :2012
4.2.1.5 ~ i b n
hanh Iat

N&u vat lieu g i n k&t la vka thi vka phHi dwqc trii d&u Ign lwp n&n dlj rong d6 Iat tiv 3 vign d&n 5 vign,
sau khi Iat h&t cac vign nay mwi trHi ti&p cho cac vign li&n k&.
N&Uvat lieu g i n k&t la keo dinh thi ti& hanh Iat tivng vien mot vA keo phHi dwqc ph&t d&u Ign m$t gach

g i n k&t vwi n&n.
N6u mat Iat b ngoai trwi thi cAn phHi chia khe co d i n vwi khoHng cach t6i da gika hai khe co d i n la
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4 m. N&Uthi&t k& kh6ng quy Binh thi 14yb& rong khe co d8n beng 2 cm, chen khe co d i n beng vat lieu

*

co khH ning Ban hbi.
Trinh t~ Iat nhw sau: cing dhy va Iat cac vign gach trgn dwwng thing n6i gika cac m6c d i g i n tren lwp
n&n. Sau do Iat cac vien gqch nam trong pham vi c8c m6c cao do chuin, hwbng Iat vu6ng goc vwi
hwwng d i Iat trwwc do. Hwwng Iat chung cho toan nha hoac c6ng trinh la tiv trong lui ra ngoai.
Trong khi Iat thwwng xuygn dung thwwc tAm 3 m d6 ki6m tra do p h h g clja m$t 1st. Do phang clja m$t
Iat dwqc ki6m tra the0 cac phwvng dgc, ngang va cheo. Thwwng xuygn ki6m tra cao do m$t IBt can c 6
trgn cac m6c cao do tham chi&.
Khi Iat phAi chic y s i p x&p cac vign gqch dung hoa v i n thibt k&.
4.2.1.6 Lam day mach Iat

C6ng tac lam dAy mach Iat chi dwqc ti& hanh khi cac vign gqch Iat d i dinh k6t vwi lbp n&n. Trwwc khi
lam dhy mqch Iat, mat Iat phHi dwqc ve sinh sqch s6. Mach lam dAy xong, lau ngay cho dwwng mach
shc ggn va ve sinh m$t Iat kh6ng d6 chAt lam dAy mqch Iat bam dinh lam bdn mat Iat.

4.2.1.7 890 dw&ng mat Iat:

Sau khi lam dAy mach Iat kh6ng dwqc va cham mqnh trwbc khi vat lieu g i n kht dlj rin.
V6.i m$t IBt ngoai trwi va vat lieu

k&t IA vka, phHi co bien phap che nAng va ch6ng mwa x6i trong 1

ngay d&n 3 ngay sau khi Iat.
4.2.2 'rhi c6ng san g6
4.2.2.1

huh bj Iwp n&n

Lwp n&n phHi dwqc c h u h bj the0 dung thi&t k&. Trong trwwng hqp t4m san g6 ghn k&t trwc ti&p Ign g6i
d& hogc con kg thi cac chi ti&t nay phHi dwqc c6 dinh chic chin bang vit ho$cch6n s8n Ign san.
B& mat lwp n&n phHi kh6 rao.
4.2.2.2

huh b/ t&m san g6

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TCVN 9377-1:2012

T A san
~ 96 ph5i Bung chrjng loqi g6, kich thvwc,

mau sic, BO Am the0 thi6t kb. T


A san
~ 96 co th9

Bvqc hoan thien b& mat trvwc hoac sau khi Iat.
Van san g6 phAi Bvqc nghiem thu the0 TCVN 7960:2008.
4.2.2.3

huh bi vat lieu gan k6t

Vat lieu g6n k6t ph5i Burrg chrjng loqi, d i m b5o chAt lvqng the0 thibt kg, n6u thi6t k6 kh6ng quy Binh thi
thwc hien the0 y6u c8u crja nha s5n xuht vat lieu Iat. Vwi van san g6 tw nhi6n vat lieu g i n k6t co th& la
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Binh hogc vit.

en chub bi Bey Brj dyng cy cAn thi6t cho c6ng tac Iat nhv: bua, khoan, thvwc tem 3 m, thvwc rut, eke
bAo, Byc, cva, ch6i dot, gie lau, ni v6 hoac may tr6c Bqc.
Dyng cy Bhy Brj vA phh hqp vwi ygu ceu thi c6ng cho tivng thao tac ngh& nghiep. Dyng cu d%h v hdng
va qua c6, bi mon, kh6ng B5m b50 chinh xac khi thi c6ng kh6ng Bvqc sljl dyng.
4.2.2.5 ~ i 6 hanh
n
Iat

Trvwc khi Iat tAm san 96 tw nhign ph5i Binh vi cac vi tri Bgt con k6 hogc b i n vit bang cach danh dhu
tr6n Iwp n&n. Kho5ng cach gika cac con k6 va Binh vit phu thuac vao kich thvwc tAm san 96. ~ b dung
u
con k6 thi b& mat cac con kg ph5i B5m b5o phang, 6n Binh. Trvwc khi g6n k6t thrn san 96 vwi Iwp n&n
ph5i tibn hanh ghep mOng vwi cac thrn li&n k& va ph5i B5m b5o mqch Iat kin khit, sau do g i n k6t thrn
san v&i Iwp n&n bang dinh hoac b6t vit.
Khi Iat tAm san g6 nh3n tqo c6 cac I&p cAu tqo Bi kem vat lieu tAm Iat ph5i tu3n thrj the0 dung chi Binh

crja nha s i n xu&, keo dinh ph5i Bvqc ph6t B&u tqi cac mep thm Iat, sau do ghep mqch Iat ph5i B5m
b5o kin khit.
4.2.2.6 Hoan thien m#t Iat

Trong trvwng hqp sljl dung tAm san g6 chva hoan thien b& mat thi sau khi ghep xong mat san g6 ph5i
Bvqc bao p h h g , nao nhsn sau BC, danh gihy nhap tiv th6 B6n mjn va cu6i cung Banh xi bong, vec ni
ho$c son.
Vwi thm san g6 B3 hoan thien b& mat thi co th& Banh bong hoic son ngay sau khi Iat.
4.2.2.7 BAo dw&ng mat I A t

MU Iat phii Bvqc b5o ve, kh6ng B& Bi lqi hoac va chqm trong giai Boqn thi c6ng lam bong xvwc mat
hoac mht bong.

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TCVN 9377-1:2012
4.2.3 Thi c6ng ~ r Iat
n mdm

~ h lat
m m&m co th6 la tAm nhya t6ng hqp, thim nhya dqng cuen, thm thim, thim dqng cuen.
4.2.3.1 Chuhn bi lwp ndn

Lwp n&n phii c6ng, 6n dinh, dulqc lam phing, ve sinh sqch s6 the0 dung thibt kb.
Trong trvwng hqp dung keo dan hoac bang dinh d& dan cac tAm nhya hoac thim dqng cuen thi mat

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dan phii dvqc mai phing va lam sqch byi trvwc khi phbt lwp keo dAn.

4.2.3.2 Chuhn bi tem Iat .

'

Thm Iat phii dung ch6ng loqi, kich thvwc, mau sic.
4.2.3.3 ~ h u h bi
n vgt lieu gan kht

Vat lieu gAn kbt phii dljng chling loai, d i m b i o ch4t lvqng the0 thibt kb, nbu thibt kb kh6ng quy dinh thi
thyc hien the0 y9u cAu c6a nha s i n xu& vat lieu Iat.
Trong trvwng hqp sljl dung vat lieu g i n kbt la keo dinh thi phii dvqc b i o quin va sljl dung the0 y9u
cAu c6a nha s i n xu& v$t lieu.
4.2.3.4 ~ i 6 hanh
n
Iat

Khi Iat san bdng thim nhya dang cuen, keo dan nhn phbt I9n n&n the0 chi&u ngang clia cuen nhya Iat.
Viec dan thyc hien tivng d i i tvwng dvwng vwi kh6 tAm Iat. Dan mkp cuen thim dung vao cqnh chub,
dung lyc ep mqnh I9n ch6 viva dan cho thm nhya dinh chic vwi lwp n&n. Sau do Ian d& cuen thim ra,
l i n dbn d i u dung tay hay bua cao su mibt cho dinh vwi lwp n&n dAy kh6ng khi v& phia trvwc tranh
phbng rep do hwi kh6ng thoat dvwc. Hai tAm nhya dan k& nhau phii song song va ghep kin, kh6ng cho
cac mep tAm chbng Ihn nhau.
Trvwng hwp dung dinh ghim hoac nep d6 g h kbt tAm nhya hoac thim vwi Iwp n&n thi thm Iat phii
dvqc trii cang trvwc khi cb dinh bdng ghim hoac nep.
Khi Iat san bang thm thim hoac nhva, mep hai tAm li&n k& phii phing mep, khit. Phii chu y s i p xbp
cho dung hoa van.

5

C6ng t3c lang


Vat lieu Iang phii Bat y9u chu ky thugt v& chAt Ivqng, mau sic.

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5.1.2 Lwp nen
5.1.2.1 Lwp n&n phii d i m b50 phsng, 6n djnh, co do bam dinh vwi vat lieu lang va dvqc lam sach tqp

chht. Trong trvwng hqp lwp n&n co nhivng vi tri 16m I&n hwn chi&u day lwp Iang 20 mm thi phii tiQn
hanh bu b%ngv$t lieu tvwng Gng trvwc khi Iang. Vwi nhivng vi tri ~ bI9n
i cao hwn met lwp n&n y9u c8u
thi ph5i ti6n hanh san phsng trvwc khi Iang.
5.1.2.2 Khi chn chia 6, khe co d i n thi c6ng viec nay phii dvqc

chub bj trvwc khi tiQn hanh c6ng tac

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lang. N6u thibt k6 kh6ng.quy djnh thi 3 m d n 4 m lai lam mot khe co d i n bang d c h cat ~ I ngang
X
Idp
Iang, lhy chi& rOng.khe co d i n 18 5 mm d n 8 mm, khi hoan thien khe co d l n s(! dvqc chbn bang vet
lieu co k h i n3ng Ban hbi hoac t y han g3n.
5.1.2.3 Trvwc khi Iang ph5i ki6m tra va nghiem thu lwp n&n va cac bo ph$n bj che khuht (chi tiQt ch6n

ssn, chhng th$m, he thhng ky thugt v.v ...).
5.1.3 c h i t lwqflg lwp lang
5.1.3.1 M$t lang phii d i m b i o y9u cAu v& mau s i c nhv thibt kQ.
5.1.3.2 Dung sai tr9n mat Iang kh6ng vvqt qua cac gia trj y9u chu trong Bing 3.


-

BAng 3 Dung sai cho phep
Logi vat lieu lang

Khe h b vwi thwwc 3 m

Dung sai cao do

Dung sai do d6c

3 mm

1 cm

0,3 %

~ $c5t cac vat lieu Iang

5.1.3.3 V&i mat Iang co y9u chu danh mau thi tuy thuoc vao thwi ti&, do Am va nhiet do kh6ng khi ma

sau khi Iang xong I&p viva cuhi cung c6 the ti6n hAnh danh mau. Danh mau ti& hanh b$ng cach r i i
d&u mot lwp bot xi m3ng hay Iwp m6ng hb xi m3ng va dung bay ho$c may xoa nh8n b& m$t. Viec danh
mau ph5i kQtth~jctrvwc khi vat lieu Iang k6t th~jcqua trinh d6ng kbt.
5.1.3.4 Trvwng hqp m$t Iang co y9u cAu mai bbng, qua trinh mai bong b3ng may dvqc ti& hanh dbng

thwi vwi viec va cac vQt Idm cyc bo va cac vQt xvwc gqn tr9n b& mat. Khi bst dhu mai ph5i d5m b50 vat
lieu lang dO cvwng do chju mai.
5.1.3.5 C6ng viec k6 chi thyc hien sau khi hoan thanh c6ng tac Iang. Dvwng k6 cAn d&u v& chi&u rong,


chi&u s4u va s5c net. N6u dung q u i I3n co hat chdng trwn cGng I3n ngay khi I&p xi m3ng mau chva
r5n.
5.1.4 An toan lao dong khi lang
5.1.41 Khi Iang phii tu4n theo c6c quy 4nh hien hanh v& an toan lao dong, an toan phong chbng chay n6.

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5.1.4.2 N&Us b dyng may xoa b& mat d6 thyc hien c6ng tac IAng thi c6ng nhin phii dvqc dao tqo v&

v$n hanh may trvwc khi thi c6ng. LWUy an toan dien va chbng cac vat thii mai vang bAn vao cw th6.
5.2

Quy trinh thi c8ng

5.2.1 ~ h u e n
b] Iwp n&n

Lwp n&n phii dvqc chuan bj the0 thi&t kg, n&u thi&t k& kh6ng quy dinh thi the0 y6u chu clia nha s i n

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xuit vat lieu Iang n&n. Lwp n&n p h i i d i m b i o phing, 6n dinh.

'

Lwp n&n phii co do bam dinh, lam sqch va tvwi Am trwwc khi Iang.
Trvwng hqp Iang bang thrj c6ng, tr6n mat Iwp n&n phii g i n cac mbc cao do lang c h u h vwi khoing

cach giOa cac mbc kh6ng qua 3 m.
5.2.2

huh b] v$t lieu lang

V$t lieu Iang phii dling chling logi, chit Ivqng, mau s8c. Viec pha tron, s b dyng va b i o quin vat lieu
lang phii tuin the0 y6u cAu clia nha s i n xu& vat lieu. V$t lieu lang co thb la vOa xi ming cat hoac vOa
polyme.
Vwi vat lieu Iang la vOa phii t u i n the0 TCVN 4314:2003
5.2.3 Dung cy lang

~ b bay
m xiy, bay danh bong, thvwc tem 3 m, thvbc rlit, ni v6 hoac may tric dqc, ban xoa tay hoac
may xoa, ban d$p, I i n gai.
5.2.4 ~ i 6 hanh
n
Iang

Dan d&u vat lieu Iang tr6n mat Iwp n&n, cao hwn mat mbc cao do Iat chub. Dung ban xoa d$p cho vet
lieu Iang dac chhc va bam chat vao Iwp n&n. Dung thvwc tAm can phing cho bang mat mbc. Sau db
dung ban xoa d6 xoa phing.
Vwi mat Iang co dien tich Iwn phii dung may d6 xoa phing b& mat. Viec xoa bing may thwc hien the0
trinh tw sau: dung may tric dqc djnh vi dvwng ray clia may xoa tr6n phqm vi Iang, di&u chinh chin may

b cao do thich hqp, chp vat lieu Iang vao phqm vi Iang, dibu khi6n may dung q u i lu nh6 Ian tr6n b& mat
lang va canh xoa d&xoa p h h g .
Vwi nhOng mat lang tr6n n&n b2, t6ng co y6u cAu nhv: ting cwng b& mat chbng mAi mon, axit ... phii
tuin the0 thi&t k& hoac y6u c h ky thu$t clia nha s i n xu& vat lieu. N&Uthi&t kgkhdng chi anh, thi c6ng
the0 trinh ty: sau khi d6 b6 t6ng n&n tw 1 h d&n 2 h r i i d&u chit lam c6ng b& mat. Oqi d&n khi chit lam
cwng se mat, dung may xoa n&n xoa bong b& mat. Sau khi xoa bong b& mat cC, the phun Iwp b i o dw&ng.


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Trvwng hqp lwp Iang cu6i cung bang vGa xi ming cat thi kich thvwc hqt c6t lieu Iwn nhht kh6ng qua
2 mm, xoa phing mat the0 Bij d6c thiQt kQ.

Khi thwi ti& ning nong, kh6 hanh sau khi Iang xong 1 h B6n 2 h, p h i Ign mat Iang mot Iwp v$t lieu giG
Am, tvwi nv&c trong 5 ngay.

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Kh6ng Bi Iqi, va chqm mqnh trgn m$t Iang trong 12 h sau khi Iang.
Vwi m$t Iang ngoai trwi ~ h co
n bien phap che nAng va ch6ng mva x6i trong mot ngay B&n ba ngay sau
khi lang.

6

~ i & tra
m va nghiem thu

6.1

~ i & tra
m

6.1.1

C6ng tac ki&m tra chAt lvqng Iat va lang cac c6ng trinh x i y dlyng the0 trinh tly va bao gbm cac


chi tigu trong B5ng 4.

-

Bang 4 D&i twqng, p h w n g phap va dung cu ki&mtra c6ng tac lit, Iang
Dbi twqng ki&mtra

Phwwng phap va dung cu k i h tra

B& mat Iwp n&n

Do trlyc tiQp b h g thvwc, ni v6, may tr4c Bqc

Vat lieu Iat, lang

LAY

V$t lieu gAn k6t

Lhy m h , thi nghiem the0 tigu chudn c i a v$t lieu

Cao dij mat Iat vA IAng

Do trlyc tiQp bang thvwc, ni v6, may tric dqc

Do phing mat Iat va lang

Do trlyc tiep b$ng thv&c tAm, ni v6, may tric Bqc


Dij d6c mat Iat va lang

Do b h g niv6, 86 nvwc th13 hay cho I i n vign bi thep

msu, thi nghiem the0 tigu chudn c i a v$t lieu

Bvwng kinh 10 mm
Dij B$c chAc va 86 bam dinh giGa vat lieu Dung thanh 96 96 nhe Ign b& m$t, t i h g 96 phHi chic
Iat, vat lieu lang v&i I&p n&n

B&u b mgi diem
Vwi mat Iat 98 hoac tAm Iat m&m Bi thI3 Ign trgn

Dij Bang B&u v& mAu S ~ Choa
, vsn, cac chi Quan sat b h g m8t
ti& Bvwng vi&n trang tri va Bij bong c i a mat
lang
Cac ygu cAu B$c biet khac cGa thigt kg
6.1.2

Theo chi Binh c i a thiQt kQ

Mat Iat (1Ang) phHi phsng, kh6ng ghb gh&, 16i16m cyc b6, sai s6 vb cao Bij va do d6c kh8ng
15

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t

vvgtt qua cac gia trj trong Bing 1 vB Bing 3.
6.1.3 Chenh tech do cao giba hai mep clja vat lieu Iat li&n k& kh6ng vvgtt qua gia tri trong Bing 2.
6.1.4 0 0 dbc va phvwng dbc clja mat Iat (Iang) phii the0 dung thikt kk, nbu c6 ch6 ~ bho$c
i
16m qua

mGc cho phep thi dhu phii dvec Iat (Iang) lai.
6.1.5

0 0 bam dinh va dac ch4c clja vat lieu g i n kbt hoac vat lieu Iang vwi Iwp nhn kiem tra bang cach

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96 nhe Ign be mat IBt (Iang) nku co tibng bop thi ph5i boc ra sfia lqi.
V6.i mat l i t g6 di len kh6ng hng, kh6ng c6 tikng keu.
Vwi tdm l i t m&m, mat 1st kh6ng phbng, kh6ng nhin, kh6ng cong mep, kh6ng co.bi&u hien trvgtt.
6.2

NghiQmthu

Nghiem thu c6ng tac IM (Iang) dvqc tikn hanh tqi hien trvwng. Hb sw nghigm thu gbm co:
-

Bien b i n nghiem thu chht lvqng clja vat lieu Iat (Iang);

-

Bign b i n nghiem thu chht lvqng clja vat lieu g i n kkt;


-

Cac bien b i n nghiem thu lwp n&n;

-

Hb sw thikt kk hoan thien hogc cac chi d8n v& hoan thign trong hb sw thikt kk c6ng trinh;

-

Bin'vg hoan c6ng clja c6ng tac Iat (Iang);

-

Nhat ky c6ng trinh.

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