Study on Performance of Modified Bituminous Concrete Mix by using Metakaol in

Abstract

We are living in a world where transportation plays a major role in leading the country, in which roadways are used as the most significant way to develop the country, for this we need good quality roads to withstand heavy loads and sustain for many years. so we use metakaolin as a partial replacement of stone dust with different percentages like 5%,10% and 15% for a bitumen mix proportion of 4%,4.5%and 5%, therefore we performed a different test and find out that 4.5% bitumen mix with a replacement of 10% stability is greater than other replacement proportions and other bitumen mix percentages. Where metakaolin is formed from burning the clay mineral kaolinite at 600 to 800ºC, which is very rich in minerals that are used to form ceramic materials. These ceramic materials are very high in strength that can be used as a partial replacement in cement. So, we use metakaolin to get higher strength and to maintain the roads for a longer period of time.