Comparison On Compressive Strength Of Concrete By Using Different Types Of Cement For Grade M20 AND M25

Abstract

Concrete consummation is becoming increasingly complex and the importance of producing matures that are both cost effective and durable has never been higher. Many experimental woks have been performed to determine the compressive strength of different types of cement. The overtimes of the study are to determine the compressive strength of concrete by using two different types of cement for two different grades M20 and M25. The Materials used for the experiment are OPC & PCC Cement, Indian Pakure stone, Sylhet sand and water. The mass of the specimens was recorded carefully. For 14 days, the values of compressive strength of concrete OPC and PCC are 34.26 MPa and 25.83 MPa respectively of grade M20. For 21 days, the alues are 34.66 MPa and 28.73 MPa and 28 days values are 39.19 Mpa 30.02 Mpa respectively for the same types of cements for OPC and PCC of grade M20. For 14days, the highest compressive strength of the concrete found 29.63 MPa for OPC of grade M25 and the lowest compressive strength is 24.54 MPa for PCC of grade M25. For 21 days, the highest compressive strength of the concrete found 35.02MPa for OPC of grade M25 and the lowest compressive strength is 27.00 MPa for PCC of grade M25 And 28 days, the highest compressive strength of the concrete found 36.33MPa for OPC and the lowest compressive strength is29.57MPa for PCC of grade M25. The compressive strength of OPC cement was better than the PCC cement for the both grade M20 and M25.