| INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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| 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
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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 |
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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.
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Published: 28 January 2021
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| Fund:The National Natural Science Foundation of China (51578025,E020501). |
About author:: Shanshan Qian, Ph.D. candidate of Beijing University of technology, graduated from Southeast University with a master’s degree, director of R & D of Jiangsu ARIT New Materials Co., Ltd. He was selected as the top young and middle-aged talents in Nanjing in 2019, outstanding young and middle-aged technological innovation talents in JiangBei new area in Nanjing in 2018, and won the May 1st Labor Medal of Nanjing in 2017. He has published more than 30 journal papers, applied 35 national invention patents, 3 US patents and 28 of national invention patents, 1 of US patents were authorized. His research interests include the research and development of high performance concrete, concrete admixtures, concrete durability and related materials.
Yan Yao, professorship senior engineer, the president of China Building Materials Academy. She received her BS from Tongji University in 1982. She is a member of vice president of China Building Materials Industry Association, vice-president of China Silicate Society and so on. Her research interests include the research and development of high performance concrete, concrete admixtures, concrete durability and related materials. She has won ten national and ministerial science and technology progress awards and published more than 40 journal papers. |
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2021, Vol. 35 
