Effect of aggregate type on the mechanical properties and bond strength of self compacting concrete

In this study, bond strength and the mechanical properties of the self-compacting concrete obtained with strength different types of aggregates were investigated. The twenty-four different SCC series were produced. It was used aggregate natural stones, crushed stone, and pumice stone. The four different proportions of silica fume and fly ash used in this study. Optimum amounts of powder materials properties were determined for the mechanical properties and fresh concrete. Compressive, flexural, splitting tensile strength and bond strength experiments were conducted. If results were analyzed as the types of powder, the series containing silica fume were obtained the greatest strength values for all aggregates and the curing time. When aggregate types were analyzed, the concrete samples produced with crushed stone aggregates were obtained the greatest strength values. Bond strength decreased with the reinforcement diameter increases. Key Words: Self Compacting Concrete, Aggregate Types, Compressive Strength, Flexural Strength, Splitting Tensile Strength, Bond Strength