Fibre Cement Building Products (PPC) that is a kind of Blended Cement. The range is produced by inter grinding of OPC clinker along with gypsum and pozzolanic material in certain proportions. Our products can also be manufactured by grinding the OPC clinker, gypsum and Pozzolanic material separately and thoroughly blending them in certain proportions. The natural and artificial material of Pozzolana contain silica in a reactive form. Siliceous or siliceous and aluminous material possesses little cementitious properties. But as these get finely divided and chemically reacted with calcium hydroxide at ordinary temperature in the presence of moisture, compounds possessing cement properties are formed.