COMPARATIVE STUDY ON DURABILITY CHARACTERISTICS OF HIGH STRENGTH SELF COMPACTING CONCRETE

Environmental concerns have led to severe restrictions on dredging for sand in much of India, leading to direct impacts on the economics of concrete construction. At the same time, waste plastic is rarely recycled across India, with a large proportion of plastic simply exposed of into landfill presenting further environmental concerns. This paper describes a study seeking a solution to both problems by utilizing processed waste plastics as a partial replacement for fine aggregate in self compacting concrete mixes. Self compacting concrete is considered as a concrete that can be placed and compacted under its own weight without any vibration effort. In this experimental work, High strength self compacting concrete is obtained by replacing plastic scraps from waste plastic material. The fine aggregate is substituted with the plastic scrap at dosages 0%, 5%, 10%, 15%, and 20% by weight of the fine aggregate. The study was made using the scraps as a partial replacement for fine aggregate. The optimum percentage for the self compacting concrete can be evaluated by testing the specimen for its compressive and tensile strength. From the optimum percentage, the durability of the self compacting concrete can be evaluated using test such as, acid attack, sulphate attack test.