Influence of Polypropylene Length on Stability and Flow of Fiber-reinforced Asphalt Mixtures
Abstract: Engineers are
constantly trying to improve the performance of the flexible pavements. The
main surface distress types which cause maintenance and disruption are rutting
and fatigue cracking. For solving these problems, many studies have been
carried out until now, ranged from changing gradation to adding polymers and
fibers to asphalt mixture. In this study, polypropylene additive was selected
as fiber additive because of low costing and having good correlation with
asphalt pavement. Three type of polypropylene additive in the length 6, 12 and
19 mm were selected and used at five different percentages in the asphalt
concrete mixture. Asphalt specimens were analysed by Marshall Analysis and
finally tested by Marshall Stability apparatus. Adding polypropylene increased
Marshall Stability (38%), and decreased Flow (39%). These results show that
polypropylene can be helpful for increasing pavement life.
Author: Ramin Bayat, Siamak
Talatahari
Journal Code: jptsipilgg160049
Artikel Terkait :
Jp Teknik Sipil gg 2016
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