T U N O H E N C U U D E N T R I E N K H A I - 5 A N X U A T
SQ dung he son bdo ye tuoi tho 10 nam cho edit Chtfcfng Bit Khai quat
Sif dung sdn phu chd'ng an mdn la mdt trong nhirng bien phap htfu hieu hang dau de bao ve cac ket cau thep ndi chung va cac cdng trinh cau thep ndi rieng. Thep bi gi khi cd mat ntfdc va oxy. gi se phat trien manh dtfdi stf tac ddng ctia chat d nhiem trong mdi trtfdng khi quyen nhtf dioxyt sunfur. cac axit tif mudi trong khi quyen bien. nhiet do va do am khdng khi cao... Vi vay.
vdi phtfdng phap sdn phu bao ve. yeu to quan trong nhat quyet dinh kha nang bao ve cdng trinh la chat ltfdng vat lieu sdn va cdng nghe thi cdng sdn. Vi vay.
trong nghien ctfu khoa hoc va cdng tac
quan ly sdn bao ve ke't cau thep trong GTVT, viec ltfa chon cdng nghe che tao sdn va thi cdng sdn cho cac cdng trinh trong dieu kien cu the la phtfdng phap hieu qua nhat.
Tif nam 1995, Vien Chuyen ngitnh Vat lieu Xay dtfng va Bao ve Cdng trinh da ket hdp vdi Vien Khoa hoc Vat lieu (Vien KH&CN Viet Nam) thtfc hien de tai: "Nghien ctfu ltfa chon vat lieu va cdng nghe sdn phii bao ve thich hdp trong mdt so' mdi trtfdng dac biet cho cac cdng trinh giao thdng" vdi hai ndi dung chinh: 1) Khao sat danh gia thtfc trang viec sii dung cac bien phap ehdng an mdn (dac biet la phifdng phap
N g h i e n c u n u n g d u n g c d n g n g h e v a
v a t l i e u s o n p h i i b a o v e
k e t c a u t h e p , c a c c d n g t r i n h v a
p h u o n g t i e n G T V T TS NGUYEN THj BICH THUY
t ien truong Vien Chuyen nganh Vat lieu Xay dung va Bao ve Cong (rinh Vi|n KH&CN GTVT Bai bao gidi thieu mdt sd' ket qua nghien effu nang cao chat lffdng, hoan thien cdng nghe che tao va thi cdng sdn, ket hpp vol viec khao sat thuc trang pha huy mang sdn, an mdn cac ket cau thep tren cac vung lanh tho va tffng khu vuc cua mdi cdng trinh cung nhu* viec phoi miu tu' nhien tai mpt so dia diem.
Tff cac ket qua nghien ciiu, Vien Chuyen nganh Vat lieu Xay dffng va Bao ve Cdng trinh da ffng dung thanh cdng cdng nghe sdn bao ve chd'ng an mdn ke't cau thep cua nhieu cdng trinh va phutfng tien giao thdng van tai (GTVT), bao dam chat lu'png va vupt thdi han bao ve theo yeu cau thiet ke.
Hoat dong
3 4 KHO A HOC S o t h a n g 9 2 0 1 0
T O N O H E N C U U D E N T R I E N K H A I - 5 A N X U A T
sdn phii) tren cac cdng trinh giao thdng trong diem doc qud'c Id 1A; 2) Lap mdt so tram phdi mau d cac vi tri dac trifng cho cac vung khi hau Viet Nam, tien hanh thif nghiem tif nhien mdt so' loai sdn diing cho cac cdng trinh GTVT cd tren thi trifdng. Khuyen khich va ttf van cho cac nha san xua't thuf nghiem sdn de danh gia chat ltfdng sdn trifdc khi difa vao suf dung trong giao thdng. Tif dd. dtfa ra cac phifdng an thiet ke bao ve chong an mdn cho cac cdng trinh cau Nguyen Van Trdi (Da Nang), cau Ho (BSc Ninh). cau Diing va cau Giang (Nghe An)...
Ben canh dd, Vien da nghien etna hoan thien cdng nghe che tao sdn bito ve cau thep he cao su clo hoa (bao ve khu vifc khi quyen bien), he epoxy-pek than da (bao ve khu vtfc chiu am cao va khu vifc mdn nifdc) vdi tudi tho 5-7 nam.
he sdn epoxylaccol va he polyurethane tudi tho 10 nam ap dung cho mdt sd' cau d khu vifc mien Trung va phia Bac.
Ngoai ra, Vien da xay difng mdt sd' tieu chuan danh giii chat lifdng vat lieu sdn bao ve va pfiLfdng phap thi cdng sdn de ap dung trong nganh GTVT, kiem soat chat lifdng vat lieu sdn difa vao suf dung trong thifc tien.
Cac ket qua dat duo c
Dua ra gidi phap thiet ke phu hap - Cdng trinh cau Nguyen Van Trdi:
Qua khao sat, danh gia thifc trang an
mdn cac ket cau cau, ket hdp vdi ket qua phdi mau tif nhien. lan dau tien da difa ra phifdng phap bao ve khu vifc khi quyen bien. mdn ntfdc va dtfdi ntfdc mdt each hdp ly bang cac he sdn phii do Vien nghien ctfu che tao ket hdp vdi anot hy sinh bao ve khu vtfc dtfdi ntfdc. vdi tudi tho tif 5 den 10 nam.
- Cdng trinh cau Hd: Khao sat. thiet ke, che tao he sdn phii hdp stf dung cho ket cau thep da dtfdc phii ldp ma kem.
Nghien cifu ltfa chon he s^Jn phii hdp
bao ve cau thep va ket cau thep cac cdng trinh cau thep: Cau Do Quan (Nam Dinh). cau Cdc Leu (Lao Cat), cau Vinh Dien (Quang Nam), ciiu treo Diing va cau treo Giang (Nghe An)...
Nghien eitu hoan thien mot so cdng nghe che tao sdn canh tranh dupe vdi son cua nude ngoai
Ddi vdi bd son cd tudi tho 5 nam: Ket qua dtfdc trinh bay trong cac bang 1, 2, 3. 4.
Bdng 4: Cdc chi lieu ca ly cua sdn phu can su clo hod Ten chi tieu Rrfn vj tinh Ke't qua ihu
nghiem VC'u can phai
•Sat PtnAfng phap i ii11
Mau sic Nau do Nau do TCVN 2102-1992
Dp nhm FC-4 ( ia i 25°C) Giay 40 TCVN 2092-199.3 Thdi pian kho (t*i 25"C)-
+ Khd be mai + Kho hoin toiin
Gid 4.5
17 < 6
< 24 TCVN 2096-1993 Him lifcTnt' cha I riin * 55 50-^55 TCVN 2093-1993
l)f. nun urn 20 < 35 TCVN 2091-1993
Dp bam dinh Diem 1 1 TCVN 2097-1993
DP ben lion mm 1 1 TCVN 2099-1993
Dp ben va dap Kg.cm 50 TCVN 2100-1993
Do ciifn^ miing -(in 0.25 2 0.2O TCVN 2098-1993 Bang 1: Cdc chi tieu cd ly cua sdn lot cao su clo hod Ten chi tieu ti'io vj tinh Ke't qua Ihiif
ngbiCm Yeu ctSu phai
doi Phuftfnn phap thtf
Mau sic Nau den Nau den TCVN 2102-1992
Dp nh.tl bC-4 (tai 2?"Ci C.i.iy 40 tu in TCVN 2092-1993 Thdi yian kho (lai 25"C>:
+ Kho he mil + Kho hoan toan
Gid 7.U
IS •' 6
< 24 TCVN 2096-1993 Ham li/cmg chai rin 9f 55 50—55 TCVN 2093- 1993
Dp mitt um 30 < 35 TCVN 209 1 - 1993
Do bam dinh Dii-in 1 1 TCVN 2097-1993
Dp ben uon mm 1 1 TCVN 2099-1993
DO ben va dap K;J - ,,, 5Q TCVN 2100-1993
Dp cufng mang Kfn l>, S6 > 0.20 TCVN 2098-1993 Bang 2: Cdc chi tieu cd ly cua sdn lot epoxy-pek than dd Ten chi tieu D(fn vj linh Kol qmi thu" Yeu cuu phai
dat PhtfCfng phiip 1 hii*
Mau sic Nau 06 Nau do TCVN 2I02- I9M2
Do nhOl FC-4 (lai 25"C) Giay 40 TCVN 2092-1993 Thcti gian kho Uai 25°C):
» Kho be mat + Kho hoan loan
GicJ 4.0 /« TCVN 2096-1993
Ham lirclm- chat ran tjf, £ 40 TCVN 2093- 1993
Dp mil. pin 20 •_ 35 TCVN 2091-1993
Do bam dinh Di.-m 1 1 TCVN 2097- 1993
Do ben uon nun I 1 TCVN 2099- 1993
Dp ben u Jjp Dp cu"nt mane -on Bang 3: Cac chi tieu cd ly ciia sdn epoxylaccol mau do K^.cm .1. 16 50 2 0.35 2 SO TCVN 2100-1993 1 < A N 20'(N- |')') t Ten chi tieu Dtfn vj tinh Ket qua thii VC-u cdu phai dai PbtfCfng phap Ihu"
Man sSc Ghi van. I ,hi s.i i>> TCVN 2102-1993 Dp nhili FC-4 Hai 25 Ci Gifiy 40 30- 40 TCVN 2092-1993 Thdi gian kh6 UJI 25 Ci:
* Kho be mai + Kh,i h.if-n ln:.n
Gul 5.0
18 < 6 TCVN 2096-1993 m lu\f n£ chii r.i n rA 50 3O+50 TCVN 2093-1993
1 > urn 1 8 - TCVN 2091-1993
1 > • bam dinh Diem 1 1 TCVN 2097- 1993
1 ) mm 1 1 TCVN 2099-1993
i ' • ben v .i Jar. Ks.em 50 • SI) TCVN 2IOO-1993 l> • ctfnn mane «Jn 0.36 > 0.36 TCVN 209K-I991
1 ! Kbftng bien
doi Khonp bien doi 22 TCVN 235 97
1 ) Kbftng bien
doi Khonp bien doi 22 TCVN 235- 97
n . chin dau Kbftng bien
doi Khonp bien doi
22 TCVN 235- 97
Dp bunt V, Ttunt binh 7i l'. TCVN 2101- 1993
So thang 9 2010 KH ( 3 A H O C 3 5
T U N O H 1 E N C U U D E N T R I E N K H A I - 5 A N X U A T
Vien da danh gia cac he sdn bang phtfdng phap thtf nghiem mu mud'i theo tieu chuan nganh va sau hdn 83 chu ky thtf nghiem (2.000 gid). tat ca ba he sdn tren deu thay ddi khdng dang ke. ttfdng dtfdng vdi cac he sdn ntfdc ngoai cd tudi tho bang hoac Idn hdn 5 nam.
Ddi vdi bd son cd tuoi tho 10 nam:
Ket qua dtfdc the hien trong cac bang 5, 6, 7, 8.
Tren cd sd cac ket qua nghien ctfu.
Vien da xay dtfng dtfdc 4 tieu chuan nganh; hoan thien cdng nghe che tao sdn bao ve ket cau thep he cao su clo hoa. epoxy-pek than da va epoxylaccol vdi cdng suat 50 tan/nam. Da tien hanh che' tao sdn bao ve cho cac cau nhtf: Tra Khuc, Da R3ng, Tam Ky, Hien Ltfdng.
Ten chi tieu Ddn vi tinh Ket
qua thu"
nnhi^ni
Yeu cau
phai dat PhiTrtng phap thi
M;'ni sac \:i ill Vim TCVN 7.10*7-1997
Dn nh,(l l-G-4 Mai .~"V'C> Gia v 57 TCVN 2097-1997 Thai gtun kho (tai 25°C):
+ Kho be mat + Kho hoan loam
Gid" 4.(1
2n <6
< 74
TCVN 2096-199.3 Hani liriin;1 t li.it r:1n % 73 >4(1 TCVN ">097-1997
F>o mjn jirn til < IS TCVN 1091-1993
Do h^m dinh Diem 1 1 TCVN i()97-l997
Do hen non mm 1 1 TCVN 7099-1993
Do ben va it;ip Kj.ctn 5" > SO TCVN 1100-1993 Do c ifnj* man'" sOn Bdng 5: Cdc chi tie t cd ly ciia sera epoxy giau kem II 411 > 0.35 TCVN 2098-1993
Ten chi tieu F)o"n vi tinh Ket
qua thu*
nphiem
Yeu ciiu
phai dat Phu*(Vng phap thu*
Man sac \?l 11 ito N;1n do TCVN 71 ()i-l99i
Du nhat |-C-4li;n 7'ST i Gia v 40 TCVN 1(191-1997 Thdi gian kho (tai 2-V'C):
+ Kho be mat + Kho hoan tna,n
Gia' 4.0
70 < 6
< 74
TCVN 2096-199.3 Jiilll luyng chat ra n Dcj in in DiRa bam dinh Do ben va d;}p Ro n'iny nian"p sdn > ben iiiin ( Bang 6: Oic chi tieu ca ly ciia son epoxylaccol-erotnat kem K'p cm Diem m m [iiyi % 0 4f) Mi Jo ?.n i i > 0.35 > 40 < 31 > 10 1 1 TCVN 7093-1993 TCVN 1(197-1997 TCVN 7(199-1993 TCVN 1100-1991 TCVN i(19X-1991 TCVN i(l')M997
Ten thi tieu DOn vi tinh Ke't
qua Ihu*
nphi('m
Yeu can
phai dat Phtfrfng phap thii
Man s;1r N.1 n dn Nan dn TCVN 11 01-1 99?
DO iihdlT(_'-4 Uai ^"Cj Thdi gian kho (tai 25"C): Lirav 4(1 TCVN i()(7i 199s + Kho be mat
+ K ho hoa n toa, n
Gici 4.0
70 < 6
< 74
TCVN 2096-1993 11am lu'iJllg t- lia i ra.ii Dy "lin Rn ham dinh F)g hen uon Diem Mm * 70 70 1 >40 < 31 1 TCVN 1(197-1 ()97 TCVN 1091-1991 TCVN i()97- 1 <)01
Dy hen va dj.p mm
rm 1 1 IC\N HI99-1997
Do ciin*' man" siin 0.40 > 10
> 0.71 tCVN 11 00- 1 997 TCVN "HI0SI- 1 997 Bang 7: Cdc chi tieu ca ty cua san epoxxlaccol MIL) leu chi lieu D<fn vj
Iinh Ke't qua thu- nphir>m
Y6u ctiu
phai dat PhuVVng phap thu*
Man sae Ohl r.hi TCVN 7 10? 199?
Do nlitJLl'C 4 (Lai Z5: Cl . CM ay 4^ T<" V SJ iiwr no 7 Thai gian kho (tai 25"C):
+ Kho be mil t KlLU Jj_Ojill LoiLtL ..
Gici 2.(1
If, < 6
< ^4
ICVN 2096-1993
£>0 '")" ,. . urn li > 4(1
< 10 CVN 7(191-1997 'CVN 1(191-1997
Do ba m dinh llicm 1 1 CVN i( 197 1 997
Du ben uon.
Do hen \ a p m m
Kj'.em 1
. Kl 1
> IO -S i -. S —' . f J - 1 -1 -1 , Xiy» 2000-109^
CVN "* 11)(l-1993 Dy •-Li'iig. mailg stlii
-DV £§ng _ <3f> n io
fiX > n 7i
10-7(1 c\ N "'iiys iyy_3.
Do ben Tioa chat:
+ Ngam dung dich HCI 2'", trong 4S gid, d 25"C + Ngam dau bien the irong 4S -no- a psc
Mang sdn khong bien doi
Mang son khong bien
doi
22 TCN 231-97
Nguyen Van Trdi... (khu vtfc mien Trung): Do Quan. Yen Bai. Cdc Leu.
Hd. Chtfdng Dtfdng... (khu vtfc phia Bac) va cac cau dtfdng sat tren tuyen Ha Noi - thanh phd Ho Chi Minh.
Ket luan
Khi sdn bao ve ke't cau thep ndi chung. cac cdng trinh cau, cang d khu vtfc bien, ven bien ndi rieng phai chii y khau thiet ke bd sdn phu bao ve cho phu hdp vdi tifng khu vifc. dam bao tinh kinh te va ky thuat (tuan thu tieu chuan trong ntfdc hoac qud'c te). Dac biet, phiii tuan thii quy trinh cdng nghe sdn (do nhii san xua't cung cap) mdt each nghiem ngat de tang tudi tho ctia cdng trinh •
Tai lieu tham khao
1. Nguyen Thi Bich Thuy: "Nghien ctfu thir nghiem khi hau mot so vat lieu nham xay difng cong nghe bao quan may moc, long thanh chung an mon khi quyen". Ha Nui. 2003.
2. Henry R, Bleile and Stephen Rodgers - Marine Coating Federation of Societies for Coating Technology - Series on Coating Technology.
3. Keith Johnson - Polyurethane Coatings, Noyes Data, Pork Ridge: New Jersey. 1972.
4. Bo GTVT - Tieu chuan nganh 22TCN 235-1997:
"Son bao ve cau thep va ket cau thep - Yeu cau ky thuat - Phi/Ong phap thu"'.
5. Bp GTVT - Tieu chuan nganh 22TCN 253-1998:
"Sdn bao ve cau th£p va ket cau thep - Thi cong vii nghiem thu".
Bang 8: Cdc chi tieu ca ly ciia son phii polyurethane ofi Hoat ddng
KHOA HOC 9 9-2 0 1 0
