Preparation and Mechanism of Superplasticizer for Reducing the Viscosity of High Strength Concrete
QIAN Shanshan1,2, YAO Yan1,3, WANG Ziming1, CUI Suping1, LIU Xiao1, ZHENG Chunyang2
1 Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China; 2 Jiangsu Province Engineering Research Center (ARIT) of Concrete Polymer Additives, Jiangsu China Railway ARIT New Materials Co., Ltd, Nanjing 211505, China; 3 The State Key Laboratory of Green Building Materials, China Building Materials Academy, Beijing 100124, China
Abstract: Asuperplasticizer was synthesized by maleic anhydride and isoprenyl-PE-PPG according to molecular structure design principle. The molecular structure of superplasticizer was determined by Fourier transform infrared spectroscopy, 1H nuclear magnetic resonance and gel permeation chromatography, respectively. The surface tension, adsorption behavior, zeta potential, the flow behaviour of superplasticized cement paste, rheological behavior of cement pastes, and application performance in concrete have been measured. Results of evaluation on performance have showed that superplasticizer has good viscosity-reducing effect and the mechanism of superplasticizer has been analyzed.
钱珊珊, 姚燕, 王子明, 崔素萍, 刘晓, 郑春扬. 降低高强混凝土黏度的减水剂制备与机理研究[J]. 材料导报, 2021, 35(2): 2046-2051.
QIAN Shanshan, YAO Yan, WANG Ziming, CUI Suping, LIU Xiao, ZHENG Chunyang. Preparation and Mechanism of Superplasticizer for Reducing the Viscosity of High Strength Concrete. Materials Reports, 2021, 35(2): 2046-2051.
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2021, Vol. 35 
