dc.contributor.author |
Kasthurirathna, KANS |
|
dc.contributor.author |
Pasindu, HR |
|
dc.contributor.editor |
Pasindu, HR |
|
dc.date.accessioned |
2022-06-07T05:09:50Z |
|
dc.date.available |
2022-06-07T05:09:50Z |
|
dc.date.issued |
2015-08 |
|
dc.identifier.citation |
Kasthurirathna, K.A.N.S., & Pasindu, H.R. (2015). Estimation of penetration requirements for prime coat [Abstract]. In H.R. Pasindu (Ed.), Proceedings of the Transportation Research Forum 2015 (pp. 8-9). Department of Civil Engineering, University of Moratuwa. https://uom.lk/sites/default/files/civil/files/TRF%202015_0.pdf |
en_US |
dc.identifier.uri |
http://dl.lib.uom.lk/handle/123/18155 |
|
dc.description.abstract |
Prime coat application is a necessary activity in road construction and it has a purpose in the
pavement construction process, yet many times prime is misused during the project. The
main function of prime coat is to prevent moisture infiltration to the base and underneath
layers by sealing the road base. So the prime penetration into the road base is the most
important consideration. When it comes to Sri Lankan context, the application of prime has
been a common practice in road construction projects though there is no basis for
penetration requirements. This is an issue of concern as there should be a basis for
selecting the best type of prime coat in terms of the penetration and penetration requirement
for respective type of processed bitumen as well. Commonly used types of processed
bitumen for prime application in Sri Lanka are MC-30 (Medium Curing cut back bitumen) and
CSS-1 (Cationic Slow Setting). The experimental research was done using both types of
bitumen and the Aggregate Base Course (ABC) specified in the ICTAD-2009 specification as
the road base. Specimens were casted in AASHTO specified CBR moulds at selected
degree of compaction and sprayed each types of bitumen at selected rate under typical
defined Sri Lankan conditions. Penetration requirement and required curing time were
selected for each degree of compaction and rate of application, and then the penetration
requirements for respective required curing time were plotted on a graph against the base
compaction and rate of application. There is no significant difference of required penetration
for both type of bitumen but MC-30 has shown a bit higher penetration at few time intervals
to make it arguably the best to select in terms of the penetration into the base among the two
types of bitumen tested. The penetration requirements for MC-30 and CSS-1 with the time
are presented and can be used to make decisions on the best type of bitumen to use in
terms of penetration and required penetration for a selected type of bitumen with curing time. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Department of Civil Engineering, University of Moratuwa. |
en_US |
dc.relation.uri |
https://uom.lk/sites/default/files/civil/files/TRF%202015_0.pdf |
en_US |
dc.subject |
Prime coat |
en_US |
dc.subject |
Penetration requirement |
en_US |
dc.title |
Estimation of penetration requirements for prime coat |
en_US |
dc.type |
Conference-Abstract |
en_US |
dc.identifier.faculty |
Engineering |
en_US |
dc.identifier.department |
Department of Civil Engineering |
en_US |
dc.identifier.year |
2015 |
en_US |
dc.identifier.conference |
Transport Research Forum 2015 |
en_US |
dc.identifier.place |
Katubedda |
en_US |
dc.identifier.pgnos |
pp. 8-9 |
en_US |
dc.identifier.proceeding |
Proceedings of the Transport Research Forum 2015 |
en_US |
dc.identifier.email |
pasindu@uom.lk |
en_US |