EFFECT OF USING METAKAOLIN AS FILLER IN BITUMINOUS MIX
V. Ashok Varma
PG Scholar, Dept. Of Civil Engineering, GMR Institute of Technology- Rajam , IN
M.T.S. Lakshmayya
PG Scholar, Dept. Of Civil Engineering, GMR Institute of Technology- Rajam , IN
Keywords: Metakaolin, Marshall, Filler, Rutting, Optimum Binder Content.
Abstract
This study investigates the effects of using Metakaolin (MK) in bituminous mixture as a replacement of common filler. Іn perspective of the same, samples were prepared for various bitumen content differing from 4.0-5.5% at 0.5% increment as well as percentage of filler varying from 2 to 6 % of Metakaolin was used. By using Marshall mix design the optimum binder content were evaluated for all the mixes. The results from the experiment indicates higher stability value with optimum binder content for the mix having 4.456 % of bitumen at 4% of metakaolin as optimum filler in comparison with the standard specifications. In this experimental study the feasibility of using metakaolin as alternative filler instead of conventional filler can be used by satisfying the standard specifications.
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