Properties of 33, 43 and 53 Grades of Ordinary Portland Cement
Ordinary Portland Cement(OPC) is the most widely used cement in the world for producing concrete, mortar, stucco, and nonspecialty grouts. Ordinary Portland Cement has 3 grades based on its strength namely 33, 43 and 53 grade that indicates the compressive strength obtained after 28 days of setting.