Use in a hydraulic binder composition of a dry-ground calcium carbonate with a copolymer of (meth)acrylic acid and an alkoxy or hydroxy polyalkyleneglycol group

摘要

Provided are a method of dry-grinding calcium carbonate in the presence of a grinding aid agent which is a copolymer of (meth)acrylic acid with a monomer containing an alkoxy or hydroxy polyalkyleneglycol group, and a method of producing a hydraulic binder base including dry grinding a calcium carbonate in the presence of the grinding aid.