Introducing Crown Portland Cement
As per specification of BDS EN 197-1:2003, CEM-1, 52.5 N Crown Portland Cement is an Ordinary Cement prepared by mixing clinker 95-100% and gypsum 0-5%. This cement is also called Ordinary Portland Cement (OPC). Portland Cement is the Cement obtained by initimately mixing together calcarious and argillaceous materials, burning them at clinkering temperature upto about 1450 degree celcious and grinding the resulting clinker (calcined product ) at required fineness and finally mixed with gypsum to obtain cement. This cement is a finely ground mixture of calcium aluminates and silicates capable of setting and hardening by chemical reaction with water. It is a binding material, which is used in engineering constructions.