EVALUATING THE EFFECT OF SNAIL SHELL ASH AS A FILLER IN HOT MIX ASPHALT

Abstract

Filler play an important role in engineering properties of bituminous paving mixes. Conventional, cement, lime and stone done are used as fillers. In this study, an attempt has been made to access the effect of a non-conventional filler (snail shell ash) experimental procedure was adopted using Marshall Stability method to analyze the following parameter. Stability, flow, void in mineral aggregate, void in mix and void filled with bitumen. The filler was added in the order of 0%, 1.5%, 2.5%, 3.5% 4.5%, 6.5% respectively. The result shows that at 0% the stability is 6.91KN at 3.5% of filler [SSA] the stability is 7.0 KN. This shows that the stability was OK and it meant the criteria for asphalt institute for Mix design. Also the result shows that the flow decrease as the ratio of snail shell ash increases. The result of asphaltic concrete showed that at 6.5%of filler content the standard of Marshal Properties were satisfied. Thus snail shell at 6.5% snail shell content of asphaltic concrete.