METHOD OF MAKING BLENDED CEMENT COMPOSITONS

摘要

A method of preparing a blended cement composition is provided. The method comprises intergrinding a composition comprised of a major amount by weight of portland cement clinker, a minor amount by weigh t of a pozzolanic material and a grinding aid in an amount of from about 0.1 % to about 5 % based on the total weight of portland cemen t clinker and pozzolanic material, said grinding aid being comprised of a naphthalenesulfonate formaldehyde condensate.