Materials Reports  2020, Vol. 34 Issue (Z1): 169-172 |
| INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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| Synthesis and Hydration Properties of Calcium Sulphosilicate |
| WANG Xiao1, GUO Wei2, HU Yueyang2, CHEN Qin2, QIU Jialin2, LI Zhengyang2, CHEN Jiabin2, GUAN Rongcheng2
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1 School of Materials Science and Technology, Jiangsu University, Zhenjiang 212013, China;
2 School of Materials Science and Technology, Yancheng Institute of Technology, Yancheng 224051, China |
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Abstract Calcium silicate(C5S2$)mineral was prepared from pure materials, and the influence of different calcination systems on the synthesis of C5S2$ mineral was investigated by f-CaO determination and XRD analysis. The synthetic C5S2$mineral was mixed into sulfoaluminate cement in different proportions. The influence of C5S2$ mineral on the mechanical properties and hydration rate of sulfoaluminate cement was studied by measuring the compressive strength and the combined water content of hydrated samples. The results show that: after hydrothermal synthesis of raw materials and calcination at 1 150 ℃, the mineral synthesis rate of C5S2$ could reach 94.9%, and the crystal morphology of C5S2$ is like a round rod. When the content of C5S2$ is 7.5%—10%, the strength of cement test block increases obviously. When the content is 10%, the 28 d strength of cement test block can reach 73.3 MPa. Adding C5S2$ can improve the hydration rate of sulphoaluminate cement. When the content is 10%, the combined water amount of 28 d cement reaches 27.48%, with the highest hydration rate.
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Published: 01 July 2020
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| Fund:This work was financially supported by National Natural Science Foundation of China (51872252). |
| About author:: Xiao Wang, master of Jiangsu University. He has won the second-class scholarship twice, the third-class scholarship once, and applied for 7 national patents as the first author. The research work mainly includes state key advanced inorganic materials, research and deve-lopment of new cement materials, following the application of the tutor and participating in the project of national natural science foundation of China ; Wei Guo, born in 1970, Ph.D. degree, third-class professor of materials science, Yancheng Institute of Technology. She has successively won the second prize of excellent scientific research achievements in colleges and universities of the ministry of education, the third prize of educational scientific research achievements in Jiangsu province, the first prize of excellent papers in natural science at the municipal level, the second prize of scientific progress, and the honors of outstanding young backbone teachers of " ; qinglan project" ; in colleges and universities of Jiangsu province. She is mainly engaged in the teaching and research of ecological building materials and solid waste recycling. Presided the national natural science fund projects, completed the department of Jiangsu province natural science fund project silicate materials engineering, the Ministry of Education key laboratory open fund project, no.12, major basic research program of Jiangsu province, Jiangsu province economic and trade commission project, etc., to complete the 973 plan for state major basic research projects, science and technology plan projects in Jiangsu province and other kinds of major basic and applied research projects. As the first author and corresponding author, she has published more than 50 research papers in the core journals and obtained 9 authorized invention patents. |
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