Cement Production: How Cement Is Manufactured Cemex
Jun 25, 2015 The ASTM Spec. C150 provides for eight types of Portland cement Types I, IA, II, IIA, III, IIIA, IV, and V, where the “A” denotes an air-entraining cement. These cements are designed to meet the varying needs of the construction industry. Cements used in wells are subjected to conditions not encountered in construction, such as wide ranges.Most new cement plant is of this type. The principle is similar to that of the dry process preheater system but with the major addition of another burner, or precalciner. With the additional heat, about 85 -95 of the meal is decarbonated before it enters the kiln.