Research Progress in Building Gypsum Retarder

Present research situation of domestic and overseas in building gypsum retarder is reviewed.Domestic research fall into four major categories:organic acids,phosphatic,proteins and compounded system.Overseas study mainly focus on organic acids,proteins and compounded system and its forms are diverse.The research differences between domestic and overseas and the problems in the research are summarized and research priorities and development direction in this regard is also analyzed.