Portland cement - WikipediaPortland cement is the most common type of cement in general use around the world as a basic . It is a fine powder, produced by heating line and clay minerals in a kiln to form clinker, grinding the clinker, and adding 2 to 3 percent of gypsum. Several types of Portland cement are available. The most common, called.gypsum line in cement,Influence of line content, gypsum content and fineness on .This paper examines the behavior of Portland line cements (PLCs) made by inter-grinding clinker, gypsum and line in a full size-cement plant, while.
gypsum line in cement