公开(公告)号：US20240208862A1

公开(公告)日：2024-06-27

申请号：US18390613

申请日：2023-12-20

Applicant: GCP Applied Technologies Inc.

Inventor： Joshua Detellis ,  Jeffrey S. Thomas ,  Josephine H. Cheung

IPC: C04B7/52 ,  C04B16/04

CPC classification number: C04B7/52 ,  C04B16/04 ,  C04B2103/50

Abstract: A method for grinding cement clinker particles, comprising: introducing to a composition comprising dry cement clinker particles, in a ball mill or roller mill, whereby said particles are ground to have a finer average particle size, an aqueous grinding additive composition comprising: from about 0.1 to about 15% by weight of at least one polyacrylic acid or a salt thereof; and water; and grinding the dry composition comprising the cement clinker particles and the aqueous grinding additive composition to produce a cement product having a pack set index (PSI) greater than that obtained when the polyacrylic acid is not present in the grinding additive.