Earth is currently dealing with a pandemic. In a view to solve both the problems at once, replacing the major ingredient of concrete, that is, coarse aggregate, by waste plastic seems a promising prospect. Also, quarrying, the process by which stones are extracted from the earth, has devastating impacts on the local ecosystem, ground water, and even has air-polluting effects, so finding a replacement for coarse aggregate would be a boon to the construction industry as a whole. In this work, coarse aggregates were replaced with pre-treated plastic and behaviour with respect to strength was observed, and it was found that replacements up to 15% are viable and can result in strengths comparable to those of normal M20 concrete, showing a promising replacement to coarse aggregate without having adverse effects on the strength of concrete.
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