Laboratory Investigations on Stone Matrix Asphalt Using Sisal Fibre for Indian Roads

Abstract

The technology of asphalt materials and mixtures is discovered and mostly used in Europe and North America. The SMA (stone matrix asphalt) mixture is a gap-graded mix. In this present study comparison of strength of pavement wearing coat made with SMA mix with fibre and without fibre was done. This research was done to evaluate the viability of sisal fibres as stabilising agent in the mixture by laboratory tests in which a flow parameter was analyzed, as well as the mechanical properties of the mixture. For the SMA mix the aggregate gradation was taken as per the MoRTH specification and the binder content was 4%, 4.5%. 5%, 5.5%, 6%, 6.5%, 7% by weight of aggregate and fibre used was 0.3% by weight of aggregate. Here we used cement as filler and 60/70 grade bitumen as binder.