Experimental Investigation on the Effect of Waste Plastic on the Compressive Strength of Concrete in Marine Environment

Abstract

The amount of plastic garbage available today is huge, with around 50% to 60% of it being used for temporary purposes. Plastics end up in the trash when they've served their purpose. Durable and non-biodegradable, plastic trash is a major problem. trash plastics end up in landfills or mixed with other types of municipal solid trash due to careless disposal. In light of these facts, we need to find a new use for these plastic scraps. Therefore, we are constantly open to new ideas that find a way to recycle these waste plastics for building purposes. The tensile strength and strain capacity of regular, unreinforced concrete are poor, and it is fragile.  A composite material known as Fibre Reinforced Concrete (FRC) is concrete that has been reinforced with short, irregularly shaped fibres of a specified geometry. It has long been known that adding small, consistently distributed, and closely spaced fibres to concrete can serve as a crack arrester and significantly enhance its qualities. This is the case with fibre-reinforced concrete. The main objective of this study is to lessen the hazardous condition by safely reusing waste plastic via an experimental programme that raises compressive strength when waste plastic is added in certain proportions. Additionally, the study aims to compare the performance of several concrete grades (M25, M30, and M35) with different percentages of waste plastic (0.5, 1.0, 1.5, and 0.5 percent by weight) after curing in potable water and then being exposed to the marine environment for 7, 14, and 28 days.