EXPERIMENTAL STUDY ON STRENGTH OF CONCRETE BY USING PARTIAL REPLACEMENT OF CEMENT WITH LIME POWDER AND COARSE AGGREGATE WITH COCKLE SHELLS

Due to the day to day innovations and development in construction field, the use of natural aggregates is increased tremendously. At the same time, the demand of materials also increased and the availability of the materials are also decreased. Because of these reasons the reuse of solid waste materials like cockle shells and lime powder came into the picture to reduce the solid waste and to reduce the scarcity of natural aggregates for making concrete. The cockle shell is not only solid waste and also marine waste obtained at sea shores. This waste material should have to be reused in order to deal with the limited resource of natural aggregate. Cockle shells and lime powder are used as a replacement to the coarse aggregates and cement respectively. The cockle shell waste was partially replaced as coarse aggregates by 10%, 20%, and 30%. Lime powder was replaced as cement by 5%, 10%, and 15%. M30 grade of concrete was designed and tested. The mix design prepared by replacing the coarse aggregates and cement at different percentages of cockle shells and lime powder. Experimental tests performed are Compressive strength test, Split tensile strength test, for M30 grade concrete with different percentages of cockle shells and lime powder after 7, 14 and 28 days curing period. The obtained strength results are compared with conventional concrete