Comparative Study on Stone Mastic Asphalt Mix for Coir Fiber and Bamboo Fiber

Abstract

As we know that the conventional mix which is used in Construction of bridges and road is dense graded asphalt. But if we are using Stone mastic asphalt maximize rutting resistance and durability in heavy traffic road. Typical SMA composition consists of 70−80% coarse aggregate, 8−12% filler, 6.0−7.0% binder, and 0.3 per cent fiber. The deformation resistant capacity of SMA stems from a coarse stone skeleton providing more stone-on-stone contact than with conventional dense graded asphalt (DGA) mixes. Improved binder durability is a result of higher bitumen content, a thicker bitumen film, and lower air voids content. This high bitumen content also improves flexibility. In this study relevant index and engineering properties of bagasse and coir fibers in stone matrix asphalt is done with several laboratories experimentation.