Use Of Plastic As A Partial Replacement Of Coarse Aggregate In Concrete For Brick Classifications

In this study, plastic waste is used as the partial replacement of coarse aggregate in concrete. For that four volume based mix proportions (1:1:1, 1:1.25:2.5, 1:1.5:3 and 1:2:4) were taken. For each ratio 0%, 25% and 50% stone was replaced by plastic. Waste of high density polyethylene (HDPE) type plastic was used. Compressive strength and unit weight of concrete was measured after 28 days curing. The test result revealed that, addition of 25% and 50% plastic as coarse aggregate reduces unit weight of concrete up to 9.8% and 12.4% respectively. But such in case, reduction of compressive strength was up to 29.17% and 48.5% respectively. Linear regression model was also developed using SPSS modeler and its accuracy was judged by statistical parameters.