EXPERIMENTAL INVESTIGATION ON EFFECTS OF PARTIAL REPLACEMENT OF COCONUT SHELL IN CONCRETE

Concrete is the mixture of different materials such as follows coarse aggregate, fine aggregate, cement & water content; all of them are mixed in various proportions to achieve various specific strength. Cement being the most important material which plays an important role as a binding material in concrete. Waste glass powder is in the form of fine aggregate which is used to increase the workability and time to consolidate concrete. Coconut shell as coarse aggregate can be used as filler material. Researches has investigated that glass powder possess pozzolana properties due to increase in silica content, so it can replace fine aggregate to certain degree and which is effectively increase the strength and also increase workability of concrete. The chemical composition of the coconut shell taken under study is almost similar to that of ordinary aggregate. In this experiment, the coconut shell is crushed into 25-30mm and replaced in following ratios 20%, 25%, 30%. The coconut shell plays major role as coarse aggregate in all the combination of concrete cubes and cylinders. The proportion of the mineral and mixtures are applied in testing for their workability, compressive strength and split tensile strength checks .