Int. J. Advanced Structures & Geotechnical Engineering
ISSN 2319-5347, ISI Impact Factor: 0.763
VOLUME 04 NO. 04 OCTOBER 2015:
Title:
Performance evaluation of waste PVC modified bitumen
Authors:
Usman Ghani, Waqas Arshad Tanoli
Abstract: Bitumen is
currently one of the most widely used binding materials
in road pavement. The reasons due to which bitumen is
mostly used as a binding material are its excellent
binding characteristics, waterproofing properties and
low cost as compared to other binders. However, it is
widely known to have various types of distresses and
does not perform well in aggressive situations. To
counter these shortcomings, bitumen is ordinarily
assorted with various forms of modifiers such as
polymers, crumb rubber etc. These modifiers are costly
and not easily available, so research is focused on
waste polymers instead. The waste polyvinyl chloride
(PVC) is used as a modifier. Waste PVC that has been
used previously as a part of sewerage system, bottles,
and credit cards is a nonbiodegradable material and has
undesirable impact on the environment. This study
presents results of the waste PVC pipes which have been
used as a modifier by an amount of 4% and 6% by weight
of bitumen in making bituminous mixture for pavement
applications. The different properties of PVC modified
bitumen such as softening point, penetration value, and
stripping value were studied and compared with those of
unmodified bitumen. The performance characteristic of
the bituminous mix made up of these modified binder were
also studied and compared with conventional bituminous
mix. The results indicate that waste PVC pipe can be
used efficiently in road construction. Flow and
stability of the mix increase after incorporating PVC
waste pipe. On the basis of experimental work it is
concluded that the asphalt mixtures with waste PVC
modifier can be used for flexible pavement construction
in a warmer region from the standpoint of stability and
flow characteristics.
Keywords: Polymers, Crumb Rubber,
Bitumen, Distresses, Polyvinyl Chloride
Pages:
207-210