Preparation of polycarboxylate-based grinding aid and its influence on cement properties under laboratory condition. (30th November 2016)

• Record Type: Journal Article
• Authors: Sun, Zhenping; Yang, Haijing; Shui, Liangliang; Liu, Yi; Yang, Xu; Ji, Yanliang; Hu, Kuangyi; Luo, Qiong
• Is Part Of: Construction & building materials. Volume 127(2016)
• Page Start: 363
• Page End: 368
• Publication Date: 2016-11-30
• Subjects: Polycarboxylate-based materials -- Blain surface area -- Grinding duration -- Particle size distribution -- Hydration heat release rate; Building materials -- Periodicals; 624.18
• DOI: 10.1016/j.conbuildmat.2016.10.007
• Languages: English
• ISSNs: 0950-0618

Abstract

Graphical abstract: Highlights: Polycarboxylate-based material was used as cement grinding aid (PC-GA) under laboratory condition. PC-GA can provide almost the same grinding efficiency as Triethanolamine (TEA). PC-GA had no obvious harm to cement properties. A possible mechanism of PC-GA was found by SEM measurement. Abstract: This paper is aiming at evaluating the possibility of polycarboxylate-based material used as grinding aid for cement production and studying its influence on cement properties under laboratory condition. Results indicated that polycarboxylate grinding aid (PC-GA) obtained by free radical polymerization can provide almost the same grinding efficiency as Triethanolamine (TEA). Besides, PC-GA can also optimize the particle size distribution and unify the particle size. The SEM result revealed that the effective was attributed to the function that PC-GA reduced the amount of absorbed fine particles on cement thus increased the compact force. What's more, the employment of PC-GA during grinding process increased the fluidity of cement paste significantly while did no obvious harm to other properties of cement.