Cement Type I Portland

Portland Cement is known as Normal Portland Cement often referred to as 'Ordinary' Portland Cement or 'OPC' - a general use cement product in the most common type of cement which being used around the world because it is a basic ingredient of concrete, mortar, stucco and most non-specialty grout. It is a fine powder produced by grinding Portland cement clinker (more than 90%), a limited amount of calcium sulfate (which controls the set time) and up to 5% minor constituents (as allowed by various standards).