Experimental Investigation of Waste Glass Powder as Partial Replacement of Cement and Sand in Concrete
The IUP Journal of Structural Engineering, Vol. VIII, No. 4, October 2015, pp. 14-22
Posted: 10 Jul 2017
Date Written: December 22, 2015
Concrete is one of the most widely used construction materials in the world. However, the production of Portland cement, an essential constituent of concrete, leads to release of significant amount of CO2, a greenhouse gas. Environmental issues are playing an important role in the sustainable development of the cement and concrete industry. There is a need to replace a part of cement with some pozzolonic material to reduce the consumption of cement. Extensive research is going into the use of cement replacement using many waste materials and industrial by-products. Efforts have been made in concrete industry to use waste glass as partial replacement of coarse or fine aggregate and cement. Glass is used in many forms in day-to-day life. It has limited span, and after use it is either stockpiled or sent to landfills. Since glass is non-biodegradable, landfills do not provide an environment-friendly solution. Hence, there is a strong need to utilize waste glass. In this study, finely powdered waste glass is used as a partial replacement of cement and fine aggregate in concrete and the same is compared with conventional concrete. This paper examines the possibility of using glass powder as a partial replacement of cement and fine aggregate. Glass powder is partially replaced at 10%, 20%, 30%, 40% and 50% and tested for its compressive strength. The cubes are put to oven heating at 100 °C for different exposures to heat and the residual compressive strength is determined. But after heating, it is found that the residual compressive strength of 20% replacement of glass powder concrete is almost equal to concrete without replacement and hence it can be used as a fire-resistant concrete.
Keywords: Concrete, Cement replacement, Sand replacement and Waste glass powder
Suggested Citation: Suggested Citation