Post on 14-Jan-2016
description
Bi
gi
ng
in
t -
B
mn
Vt
liu
xy
d
ng
TRNG I HC XY DNG - B MN VT LIU XY DNG -
1. Khi nim v phn loi
Chng 8 CHT KT DNH HU C
Bi
gi
ng
in
t -
B
mn
Vt
liu
xy
d
ng 1. KHI NIM V PHN LOI
I. Khi nim II. Phn loi
2
Bi
gi
ng
in
t -
B
mn
Vt
liu
xy
d
ng 1. KHI NIM V PHN LOI
I. Khi nim II. Phn loi
3
I. KHI NIM B
i g
ing
i
n t
- B
mn
Vt
liu
xy
d
ng
Khi nim Phn loi u nhc im 4
I.1. Khi nim
- CKD c thnh phn ch yu
l nhng hp cht hir-
ccbon cao phn t v mt s
hp cht hu c khc
I.2. Nguyn liu sn xut
- Sn phm ngun gc hu c
(Du m, than , bn)
Nha cn
Cht kt dnh hu c
I. KHI NIM B
i g
ing
i
n t
- B
mn
Vt
liu
xy
d
ng
Khi nim Phn loi u nhc im 5
I.3. c im
- Vt liu gn kt c ngun gc t cc hp cht hu c.
- Tn ti dng cng, qunh hoc lng v mi th cng do khi un
nng hoc ha tan trong dung mi thch hp.
- Hn hp lng ca cht kt dnh hu c sau khi qu trnh thay i vt l
hoc qua qu trnh ha hc n gin chng s ng rn li v c cng
.
- C kh nng trn ln vi cc vt liu khong ri rc v trong qu trnh
ng rn c th gn kt chng to thnh vt liu nhn to.
- Thng c s dng trong kt cu o ng mm, lm vt liu cch
nc hay vt liu lp.
Bi
gi
ng
in
t -
B
mn
Vt
liu
xy
d
ng 1. KHI NIM V PHN LOI
6
I. Khi nim II. Phn loi
II. PHN LOI B
i g
ing
i
n t
- B
mn
Vt
liu
xy
d
ng
Khi nim Phn loi u nhc im
II.1. Theo thnh phn cu to ha hc
7
- Nhm cht kt dnh thuc h Asphalt:
+ Bitum: cc nhm cht du, cht nha, cht asphalt, nhm ccbon v
ccbonit, nhm axit asphalt v anhidrit.
+ Gudrng: cc nhm cht du gurng, cht nha mm hoc rn, cht
asphalt, nhm ccbon t do, nhm naftalen, nhm phenol v antraxen.
- Polyme: ngun gc l cc monome hu c
- Keo hu c :
+ Keo ng vt: keo kazein sn xut t lng trng trng ca cc loi ng vt...
Khc vi Telatin c sn xut t da ng vt (ln, g...)
+ Nha thc vt: mang c trng ca CKD nh nha cy sn, cy thng, cy
sn thuyn...
II. PHN LOI B
i g
ing
i
n t
- B
mn
Vt
liu
xy
d
ng
Khi nim Phn loi u nhc im 8
II.2. Theo ngun gc cu to ca nguyn liu
- Bitum du m: l sn phm cui cng ca cng ngh lc du m
- Bitum du (bitum hc n): l sn phm khi chng ct t du
- Bitum thin nhin: c hnh thnh v tn ti trong thin nhin dng tinh
khit hoc ln vi cc loi (h, m bitum)
- Gurng than : l sn phm qu trnh chng kh than
- Gurng than bn: l sn phm qu trnh chng kh than bn
- Gurng g: l sn phm qu trnh chng kh g
II. PHN LOI B
i g
ing
i
n t
- B
mn
Vt
liu
xy
d
ng
Khi nim Phn loi u nhc im 9
- Bitum v gurng rn: nhit 20-250C l cht rn, c tnh gin v n
hi, khi nhit 180-2000C chuyn sang dng lng.
- Bitum v gurng qunh: nhit 20-250C l cht mm, c tnh do
cao, n hi km.
- Bitum v gurng lng: nhit 20-250C l cht lng, c thnh phn
gm cc hidrocacbon nh v d bay hi, c kh nng ng c li thnh
dng qunh khi cc thnh phn ny bay hi.
- Nh tng Bitum v gurng: l mt h thng keo gm cc ht CKD phn
tn trong mi trng nc v cht nh ha (cht ha tan).
II.3. Theo tnh cht xy dng hay trng thi tn ti