Recycled Waste Glass [WG] in Concrete

In this study, WG was used as partial substitution of basalt (coarse aggregate), with 0%,5%,10%,15% ,20%, 25%,30%,35%,40%,45% and 50% ratios by weight of basalt. Some mechanical and other concrete properties have been investigated at both hardened and fresh stages. The investigational results that were taken from the tested specimens illustrated that with WG using as a coarse aggregate occurred a loss in a slump, density, and water absorption. It also resulted in the enhancement of the strengths of concrete [compression and tension] until a 25% ratio of substitution by weight. Test results registered that with WG content increase, the strengths gradually increase up to a given limit, and then beyond which they gradually decrease. The maximum influence reached a 25% substitution ratio. At this percentage, the strengths [tension and compression] increasing were approximately 15 % and 14 % with relating to control concrete [0% WG] respectively.

Keywords: Concrete; Waste glass; Coarse aggregate; Compressive strength