Application of Waste Plastic and Foundry Sand in Concrete Blocks

Environmental concerns arising from the over-dredging of sand have led to restrictions on its extraction across India, with direct economic impacts on concrete construction. A suitable environmentally friendly alternative to sand must be found to match the huge demand from the concrete construction industry. At the same time, waste plastic is rarely recycled in India, with as much as 40% left in landfill. The dumping of such materials which degrade at extremely low rates meaning they persist in the environment is a long-term environmental concern. To tackle both issues, it is proposed to process waste plastic to create a partial replacement for fine sand in a novel mix for structural concrete. Plastic waste and its low recycling rate make a significant impact towards the pollution of the environment. Generation of waste foundry sand as by-product of metal casting industries causes environmental problems because of its improper disposal. The parameters such as slump, compressive strength, flexural strength, splitting tensile strength and elastic modulus with replacement of plastic waste and Foundry sand has to be study.