Experimental Study on Bitumen with Recycled Material as Fillers

Bituminous pavements have been the most commonly used pavement in highway construction across the world. Going in detail in every individual material used in the pavement, filler material plays a crucial role in clearing the voids which are the main reason for pavement failure. The material that passes through 0.075mm sieve is considered as the filler material. Filler material can be of any type but the material which is economical, helps in maintaining the strength and doesn’t affect the durability of the pavement in medium is used. In this study, coconut shell charcoal is selected as filler material and the properties are figured out. Firstly, bitumen optimum content is found by casting the specimens with different bitumen contents i.e., from 4 to 6% by weight. Coconut shell charcoal is further crushed and 0.075mm passing material is collected. This filler material is added from 4 to 10% by keeping the bitumen content as constant. The load values, flow, stability is noted down. The results are tabulated and the observations are made by comparing the results from previous journal papers.