Long An, 06/2014

CNG TY C PHN U T V XY DNG BMT

TS. V i T

1. Vn n tri

2. Ci tin trong sn xut v thi cng

3. Xu hng thit k BTN c vt hn bnh xe thp

4. nh gi tnh nng ca BTN thng v BTN ci tin

5. Tnh l 25B v Xa L H Ni

+ Ph bin c nc,

min Nam xut

hin vn nn ny t

nm 2008

+ Xut hin ch yu

trn cc ng trc

quc l, tnh l c

lu lng ln v qu

ti

i l ng Ty Xa l H Ni

Quc l 5 Quc l 1A

Nguyn liu Nhng tn ti Ci tin

- Thnh phn ht khng n nh v ly t

nhiu ngun hng, trong 1 ngun hng th cc

thi gian khc nhau thng c t l thnh phn

ht khc nhau

- Bin ct liu ln. Kh khn trong vic

kim sot t l cp phi khi thit k cp phi ,

sn xut.V d 1x2 c kch thc 10-22mm.

Lp t h thng sng v phn loi li

cc ngun ngay ti trm kim sot

t l thnh phn ht

- Trong mt ngun , th c nhiu va khc

nhau c s khc nhau v: cng , hm

lng bn st.

La chn m ng nht kt hp

kim tra thng xuyn cng , hm

lng bn st.

Nguyn liu Nhng tn ti Ci tin

- Ngun khng m bo dnh bm. c

ngun gc granite thng dm bm km

La chn c bm dnh tt.

- Ngun c hm lng thoi dt cao thng

trn 30%, mt s ngun c cng ngh c k

thng trn 40- 50%

X l bng h thng quay ly tm m

bo hm lng thoi dt

Nguyn liu Nhng tn ti Ci tin

- c m cao do gp ma trong vn

chuyn, lu tr.

- Khi vn chuyn: phi ph bt, hn ch

ngm nc.

- Xy dng nh kho cha lu tr

trong qu trnh sn xut

- Cc hc cha phi c mi che

ln t, bn st Tm kim ngun sch, khng ln tp

cht

Nguyn liu Nhng tn ti Ci tin

Ct

- Khan him ngun ct c modun ln, ct t

nhin bm dnh nha km

S dng ct xay v kim sot tt t l,

cng

- Ln nhiu tp cht, bn st

- La chn v kim sot ngun trc

khi sn xut ct nghin, m bo khng

ln tp cht, bn st

Nguyn liu Nhng tn ti Ci tin

Bt khong

- Dng bt khong t nhiu ngun , khng

kim sot c hm lng Cacbonat, cng

gc, ln tp cht

Bt khong c nghin t c ngun

gc vi, hm lng bi bn st

Qu trnh thi

cng Nhng tn ti Ci tin

Cng tc v

sinh

Cng tc v sinh khng sch --> khng dnh

bm. Mt s cng trnh thi cng trn tuyn

ang lu thng, thng b hin tng 1 lp

bt bm cng trn b mt

Phi bm b ht ton b lp bt , m

bo vt liu ti dnh bm, thm bm c

vi nn di

Vt liu ti,

dnh bm,

thm bm

Vt liu ti, dnh bm, thm bm khng

ph hp --> khng pht huy tc dng dnh

bm. c bit, trn bn mt cu chng

thm, s gy tc dng ha hc gia cht

chng thm v vt liu ti

S dng vt liu ph hp cho tng loi b

mt nn , BTN, bn mt BTXM

Hm lng

nha ti

dnh bm,

thm bm

Hm lng nha qu t --> khng m bo

dnh bm, thm bm.

Hm lng nha qu nhiu --> gy trt b

mt, thm ngc ln lp BTN pha trn, dn

n h hng

Kim sot hm lng nha ti va

Thi gian

thm nha

sau khi ti

Thi gian ch phn tch (i vi nh

tng), tch du (i vi MC70) khng

dn n lng nc, lng du trong vt

liu ti cha bay ht --> khng dnh bm

v thm vo BTN

C thi gian ch

vt liu tc phn tch ht

Qu trnh thi

cng Nhng tn ti Ci tin

S lu - Thit b lu s cp nh --> khng m bo

cng lu v thi gian lu

Tng ti trng v b rng vt lu --> m

bo cng lu v thi gian lu, trnh mt nhit

B sung thit b lu rung m bo cng

lu

X g chn

m

Thng c gia cng khng chc chn -

-> BTN ti mp khng m bo chiu dy

v cht.

Gia cng chc chn cc x g chn m

S dng li p, ct ca xe lu.

Thi gian

thng xe

Thng thng xe khong 2h sau khi lu -->

BTN nhit cn cao --> ln mt ng

Thng xe 24 ting sau khi hon thnh lu,

m bo nhit xung thp ngang bng

nhit mi trng

Thi cng

BTN trong

ma ma

Nn cn m --> V sinh, khng sch -->

Dnh bm khng tt

Tuyt i nn ng kh ro trc khi

v sinh, ti nha

Phn ng m rng thng nm v tr

thp so vi mt ct ngang ng --> B

ngm nc khi tri ma

B tr thi cng phn ng m rng trong

thi tit nng.

Vn chuyn BTN trong thi tit ma v

lnh BTN tn hao nhit

S dng phng tin vn chuyn c h

thng bo n. Che chn cn thn, tr ma

khi thi tit bt li.

Kim tra cht lng u vo

Thit k cng thc ch to

Kim tra cht lng sn

phm

Kim tra hin trng

Theo di nh gi trong qu trnh khai thc

Nghin cu ci tin sn

phm

Chn vt liu u vo:

+ :

+ T l ht dt: < 10%

+ dnh bm nha vi 4

+ T l bn st: < 2%

+ Nha:

+ Nhit ho mm: 60oC, di nhit s dng t

10-60oC

Ch tiu su vt hn bnh xe:

nh gi BTN thng BTN PMB1 BTN ph gia cao

su

Ghi ch

c im

Kh nng chu

nhit km, d

ho mm nhit

cao

Kh nng chu nhit

cao do nhit ho

mm cao

Kh nng chu nhit

cao do nhit ho

mm cao

Chng rutting tt do

n hi cao

Chng rutting tt do

n hi cao

Khng nt tt Khng nt nh

thnh phn tnh do

trong hn hp, bm

dnh tt, nht cao

Khng nt nh thnh

phn tnh do trong

hn hp, bm dnh

tt, nht cao

Khng nc

km, d bong

trc do dnh bm

km

Khng nc (bao

bc ct liu tt,

mng nha dy,

hydrophobic)

Khng nc (bao

bc ct liu tt,

mng nha dy,

hydrophobic)

Ch tiu BTN 60/70 BTN 40/50 BTN PMB1 BTN ph gia

cao su

Ch tiu v nha ng

Nhit ho mm, oC 46 49 60 60

kim ln 25oC, dmm 60-70 40-50 50-70 30-50

dn di, mm >100 >100 - -

n hi, % Khng n hi Khng n hi 60 40

nht 135oC, Pa.s - Max 3 -

nht 175oC, Pa.s - - 1.5 - 5

bm dnh vi TH Cp 3 Cha nh gi cp 4 cp 4

Ch tiu v BTN

ln bnh xe (mm) 60oC

khng kh

8-12 Cha nh gi 2-5 2-5

Cng chu ko khi p ch

(MPa)

>=1.0 Cha nh gi >=1.0 >=1.0

Ch tiu BTN 60/70 BTN 40/50 BTN PMB1 BTN ph gia cao

su

Ch tiu kt cu o ng

Lu lng xe cho

php

(t=60oC;

V=50km/h;

p=0.7MPa, ln

5mm)

285.000 ESALs*

70.000 ESALs

Cha nh gi >4.000.000

ESALs*

2.800.000 ESALs

>4.000.000

ESALs*

2.800.000 ESALs

Thi gian t

ln 5mm

1.5 thng 5 nm 5 nm

* -gi tr trn l khi kt cu o ng trn mt cu BTXM

- gi tr di l khi kt cu o ng trn lp CPD

- ESAL l vit tt ca Equivalent Single Axle Load ngha l s trc xe tnh ton tng

ng. Mt xe ti nng c khong 2 ESALs, container c khong 4 ESALs.

Ch tiu BTN 60/70 BTN 40/50 BTN PMB1 BTN ph gia

cao su

iu kin sn

xut

Sn xut bnh

thng

Cha c thng

tin

Nhit sn xut

cao hn bnh

thng

Bn cha nha

lng c thit

k c bit

Sn xut bnh

thng

iu kin vn ti Vn ti bnh

thng

Cha c thng

tin

Phi duy tr nhit

trong qu

trnh vn ti

Phi duy tr nhit

trong qu

trnh vn ti

iu kin thi

cng

Dy chuyn thm

v lu ln thng

thng

Cha c thng

tin

Dy chuyn thm

v lu ln hin i

Dy chuyn thm

v lu ln hin i

Kh nng cung

cp

Ln, t hng

trc 1 ngy

Cha c trn th

trng

t hng trc

10 ngy

t hng trc 2

ngy

n gi Gi th trng Gi th trng *

1,6-1,8

Gi th trng *

1.1

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