Method for manufacturing of normal as well as ultra-fine ...
I claim: 1. A method for manufacturing simultaneously two types of cement, a first cement having a fineness in the range of 300-500 m 2 /kg, and a second ultra-fine cement having a fineness of 600-1000 m 2 /kg, on the basis of cement materials selected from at least one of the group consisting of cement clinker, gypsum, slag, limestone, pozzolana, flyash in a plant …