<ol><li>Researched on HDPE plastic and its uses in concrete.</li><li>Found out its strength and its vast uses in concrete.</li><li>Cut the HDPE plastic into pieces., mixed it with concrete, molded it into cubes, and cured it for 28 days.</li><li>Conducted a compression test and fire-resistant test.</li><li>As a result of the experiment, it has very good compression. strength and fire resistance, like regular concrete.</li><li>But it has certain limits; it can only be used upto double storied buildings. As we raise the structure, the constant exposure to humidity can melt down the HDPE in the concrete.</li></ol>