Experimental Study on Strength Behaviour of Plastic Sand Bricks

M. Suriyaa, P. Hareharan, J. Nageshwaran, S. Nandhini, R. Sathyamoorthy

Abstract: Brick is an essential one for construction works. Generally, bricks are made by clay, sand and cement. In our project we are making bricks by using waste recycled plastic due to shortage of cement and clay. Waste plastics are widely available in all areas. We are using recycled PET bottles, carry bags, HDPE, LDPE and thermocol to make plastic bricks. Primarily recycled plastic PET bottles, carry bags, HDPE, LDPE and thermocol was collected in nearly areas. It was cut into small pieces and was melted to liquid state in 90 to 110o C. By sieve analysis, sand was sieved to 600 microns. The sieved sand is added to the liquid plastic and was stirred continuously. A handmade wooden mould is taken and the mixture was poured in that and compacted. It is allowed to dry for a period of 24 hours. The curing period was 7 days and 28 days. By this process plastic bricks are obtained and it is compared with conventional bricks. To check its properties several tests were conducted. They were Compression test, Water absorption Test, Efflorescence test, Hardness test and Soundness test.

Keywords: Waste Plastic, Conventional bricks, Compression Test, water absorption Test, Efflorescence Test