trh 01 prime coats and bituminous curing membranes
TRANSCRIPT
-
8/3/2019 TRH 01 Prime Coats and Bituminous Curing Membranes
1/20
-
8/3/2019 TRH 01 Prime Coats and Bituminous Curing Membranes
2/20
Published in 1986 by theNational Institute for Transport and Road Researchof theCouncil for Scientific and Industrial ResearchP0 Box 395Pretoria0001 South Africa
Printed in the
GAcsir 94H1071*8602
-
8/3/2019 TRH 01 Prime Coats and Bituminous Curing Membranes
3/20
H) are written for theed practice in selected as-frican experience a ndproval of the Com mittee
circulated in draft form for a periofor approval. This document, Draring which you are welcome
ational Institute for Transport a nday Materials om mittee of the
-
8/3/2019 TRH 01 Prime Coats and Bituminous Curing Membranes
4/20
The functions of
ie funksies van en vereistes vir
-
8/3/2019 TRH 01 Prime Coats and Bituminous Curing Membranes
5/20
-
8/3/2019 TRH 01 Prime Coats and Bituminous Curing Membranes
6/20
.............................................................................................. iii
Functions of prime coat ................................................................... 2.................................................................
............................................................................. 3ess ................... .................S...m......
.......................................................nctions of a curing m raneiturninsus curi
ers ..................................................~..............................................................*.............. ........*.catisn.............................
.......................................................................... 1.............................. .....,,.,...,.,. . . . . . . . . 1
4. . a ............. 1.............................. m'................................................ 1
-
8/3/2019 TRH 01 Prime Coats and Bituminous Curing Membranes
7/20
tion tar. I ta r or gasific
er applied to a neavernent layer to which a cementitious
vii
-
8/3/2019 TRH 01 Prime Coats and Bituminous Curing Membranes
8/20
-
8/3/2019 TRH 01 Prime Coats and Bituminous Curing Membranes
9/20
Primes and bituminous membranesTRH1, Pretoria, South Africa, 1986
-
8/3/2019 TRH 01 Prime Coats and Bituminous Curing Membranes
10/20
ion between a
(b) It helps to seal the surface pores in the boisture and to
of the first spray of surfacine base near its surface by bin
rovides the base with a mporary protection amental effects of weather a t traffic until theconstructed.
is dependent on the density of the base; the denser the base, the lower
* Where a bitumen or tar hot-mix base is laid over a granular subbase, the subbase should b e primed.Primes and bituminous membranesTRH1, Pretoria, South Africa, 1986
-
8/3/2019 TRH 01 Prime Coats and Bituminous Curing Membranes
11/20
terial by the tyres.
en the road to t
ification crudeecification; refer to su
* Other methods have also been found to be successful, such as brooming or watering the primed sur-face followed by pneumatic-tyred rolling to wash off excess prime.Primes and bituminous membranesTRHI , Pretoria, South Africa, 1986
-
8/3/2019 TRH 01 Prime Coats and Bituminous Curing Membranes
12/20
Primes and bituminous membranesTRX1, Pretoria, South Africa, l986
-
8/3/2019 TRH 01 Prime Coats and Bituminous Curing Membranes
13/20
is to receive an asphalt surf
t to the base is
case, one must take into
f relatively I\
Primes and bituminous membranesTRH1, Pretoria, South Africa, 1986
-
8/3/2019 TRH 01 Prime Coats and Bituminous Curing Membranes
14/20
s 'soon as pois very moist,
Primes and bituminous membranesTRX1 , Pretoria, SouthAfrica, 1986
-
8/3/2019 TRH 01 Prime Coats and Bituminous Curing Membranes
15/20
as the job proceeds. Ine consistent with a rea-
hould not be heated to
ion, to avoid overheat-
Primes and bituminous membranesTRHI , Pretoria, South Africa, 1986
-
8/3/2019 TRH 01 Prime Coats and Bituminous Curing Membranes
16/20
3.1entitious stabilize
etrimental carbonation or salt mi(c) It provides a waterproof mem rane which protects thee which m ay be caused by surThermal stresses in uced in the surface of the layer as a result of thlack membrane may lead to the develo ment of cracks.
membranes are use only on cementedenetration of aayer before it
he most effective bituminous
oarseness of t
Primes and bituminous membranesTRH1 , Pretoria, South Africa, l986
-
8/3/2019 TRH 01 Prime Coats and Bituminous Curing Membranes
17/20
he cementing process
eratures for bitumenemulsions
ituminous content Spraying erature
Primes and bituminous membranesTRH1, Pretoria, South Africa, 1986
-
8/3/2019 TRH 01 Prime Coats and Bituminous Curing Membranes
18/20
e by the traffic.es to openin ed base to controlle
areas of the basof the prime is ensured.
uring the traffickincontrol notices should b
is not criticalsuitable for nor
pe of base. However, the rate of a
effect of traffic is influence
Primes and bituminous membranesTRH1, Pretoria, South Africa, 1986
-
8/3/2019 TRH 01 Prime Coats and Bituminous Curing Membranes
19/20
Primes and bituminous membranesTRH1, Pretoria, South Africa, 1986
-
8/3/2019 TRH 01 Prime Coats and Bituminous Curing Membranes
20/20
RGW. The de-
specifics ion for ani-
Primes and bituminous membranesTRH1, Pretoria, South Africa, 1986