Pilot scale manufacture of limestone calcined clay cement : The Indian experience

摘要

Pilot production of a new type of ternary blend cement, containing 50% clinker, 30% calcined clay, 15% crushed limestone and 5% gypsum (LC3), was carried out in India. The raw materials required to produce the cement were found to be easily available in the quality required for the production. Calcination of clays was carried out in static kilns used to fire potteries and ceramics. Grinding and blending of the cements was carried out at a cement grinding unit. The blends produced were tested in the laboratory and building materials were produced using the cement. Good results were obtained from the blends despite the sub-optimal conditions of production of the cement, demonstrating the viability and robustness of the technology.