| dc.description.abstract | Plastic wastes are widely known to cause environmental problems. Fight
against plastic wastes has increasingly been campaigned by the
government of Indonesia. As a contribution to this effort from the field of
road pavements, this research was aimed at twofold objectives, namely to
help reducing the wastes and, simultaneously, to seek the possibility of
using them in pavements for performance improvements. The
Polyethylene Terephtalete (PET) wastes were pre-processed and added
to the 60/70 pen. asphalt binder as modifier. The AC-WC mixes were
produced from the control and modified binders according to the 2018
rev. 2 Bina Marga Specifications requirements. The optimum binder and
optimum PET contents of the samples were found to be 6,5% and 4%,
respectively. At these conditions, samples with modified asphalt were
found to have higher stability up to 10,4% increase as compared to that
of the controls. This early advantage, however, became quickly
insignificant in the conditions of being soaked with rain water for 24 and
48 hours. The similar trend was also noticed in the application of ITS
tests. Cantabro Loss examination showed that samples with modified
asphalt tend to have higher loss value, although not significant. This
research indicates that, to some degree (4%), PET wastes can be
accomodated into AC-WC mixes as asphalt modifier, without
compromising the stability. | en_US |
