Experimental Study On The Effect Of Glass Fiber And Polypropylene Fiber On Bitumen Mix

Abstract

The continuing rapid growth in traffic, along with the rise in allowable axle loads, requires improvement of highway paving materials. In the recent decades, different types of fiber materials are utilized for improving the performance of asphalt mixture. The Bond between fibers and binder and the strengthening mechanism in asphalt concrete is somehow different. Purpose of this research is to improvement performance of pavement and also increases stability and strength of pavement. In this bitumen grade VG-30, two types of additives Glass Fiber & Polypropylene Fiber are used and a systematic laboratory study of physical property of bitumen, aggregate, stripping value test, Marshall Mix design and tensile strength ratio tests are carried out with various percentage of both additives separately for BC grade – II of 4.9%, 5.4% and 5.9% bitumen content. Based on the tests observed effective output is 0.3% of Glass fiber and 0.3% of polypropylene fiber in 4.9%, 5.4% and 5.9% of bitumen content and also from ITS test effective result observed 0.3% of Glass fiber and 0.3% of polypropylene fiber in 4.9%, 5.4% and 5.9% of bitumen content.