Study on the Effect of OPC and PCC on the Properties of Concrete

Abstract

The objective of the study was to evaluate the effect of OPC and PCC on the compressive and tensile strength of concrete with age. Accordingly, cylindrical specimen was prepared by using cement OPC and PCC. Incasting the specimen only crushed bricks are used as coarse aggregate and Sylhet sand (FM=2.65) has been used as fine aggregate. Two different water cement ratios is 0.45, 0.60 and mix ratio 1:1.5:3 and 1:2:4 (by volume) has been adopted. Concrete cylinder made with OPC show higher compressive and tensile strength at 28 days then the those made with PCC. However, it has been from that Concrete made with OPC gains compressive strength at (45 days) a faster rate up to a certain age of concrete. While concrete with PCC attains larger strength at later age. In this study, it has been found that up to 45 days, the attained compressive strength of OPC concrete is larger than PCC concrete. However, the observed compressive strength beyond 60days is larger than OPC concrete. Similar trend has been observed in the case of tensile strength.