Experimental Study of Concrete and Mortar as Partial Replacement of Cement by Glass Powder

Abstract

The use of waste products as partial replacements for construction materials has been the focus of several research. It briefly covers the advantages and difficulties of using partially substituted waste glass powder (WGP) in a range of applications, including concrete and mortar. The experimental program in this investigation was performed in two parts. In the first phase, 20 concrete mixture cylinder specimens, or 50% of the total specimen, were cast. The remaining specimens were created in the second step. Examples of concrete and mortar mixtures with varying amounts of waste glass powder (from 0% to 15%) added in place of cement. Brick chips from recycled were used as coarse materials in concrete mixtures. Compressive strength and splitting tensile strength tests were performed on the manufactured concrete and mortar cylinder specimens. The study examined using waste glass powder for cement in both mortar and concrete mixtures. Both splitting tensile strength and compressive strength variations were found. Studies indicated that specimens containing 5% waste glass powder had the highest compressive and breaking tensile strengths. However, some studies have found that the highest values for compressive strength and splitting tensile strength are found in cylinders having 10% to 15% glass powder. In this study, recycled brick chips were utilized as coarse aggregates, and it's possible that the lack of admixtures negatively affected the outcome. Silica sand was used in the investigation, which could have lowered the strengths. The investigation was done at room temperature and showed itself to be a cost-effective choice. The research indicates that concrete and mortar can be considerably reinforced using a modest amount of waste glass powder. The slump test was used to examine several characteristics in addition to strength, including workability. The results showed that the workability is increasing with increasing glass powder. A considerable impact on the concrete and mortar mixture for the curing period was also discovered by the investigation. Because of this investigation, it is concluded that up to 5% of cement and mortar mixtures can be partially replaced with glass powder without losing their strength capabilities. This could support sustainable building methods, waste reduction, and resource conservation.