Portland cement is the most common type of cement. In particular, Ordinary Portland cement is the normal, grey cement with which most people are familiar. Material made by heating a mixture of limestone and clay in a kiln at about 1400 to 1600 degrees (2550 to 2990 F), then grinding to a fine powder with small [ ]What is Concrete stain and paint Paint is a substance used solely for decoration. It is spread over the surface to be decorated and then dries out to become a thin layer of...