Abstract
Self-weight is the load imposed by its own weight upon astructure. The material density of the system directly influences the self-weight. By creating voids inside the structure, we can reduce the self-weight and material density. In this study, voids are created by using void formers made of recycled plastic materials that do not react with concrete and steel chemically. Tests are conducted on the plastic void former and voided specimen of 150mm × 150mm × 150mm size. Geopolymer concrete is a type of concrete produced by using waste materials generated from power plants along with an activator solution. For solid specimens, cubes of 100mm × 100mm × 100mm size are cast and tested by considering different curing methods. It can be concluded that the strength characteristics of geopolymer concrete was found to be significantly greater than that of conventional concrete. Voided specimens show reduced density apart from achieving comparable strength to that of solid specimens
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