Utilization of Different Forms of Demolished Clay Brick and Granite Wastes for Better Performance in Cement Composites

Clay brick and granite waste are part of the generated by construction demolition activities. The amount these wastes is enormous, but on one hand, they can be used as a raw material for cement mixtures; thus, it important to find ways utilize them efficiently. In this study, clay were crushed screened into two size fractions (0.15–2.36 mm sand replacement smaller than 0.15 replacement), total four different forms recycled materials obtained (recycled aggregate, powder, aggregate powder) in mortar. Various properties (workability, mechanical strength drying shrinkage) mortars assessed according standardized test methods. results showed that various had effects At ratios 10% 20%, better workability when whereas higher workability. common, using form was advantageous development mortar, while powder helped mitigate shrinkage.