Materials Reports  2019, Vol. 33 Issue (Z2): 273-277 |
| INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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| Mechanic Properties of Cement Matrix Composites Reinforced with Basalt FiberModified with Silane Coupling Agent |
| WANG Lin1, WANG Mengyao1, WANG Peixun2, LU Jingyu1
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1 College of Civil and Transportation Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044;
2 China Railway ERJU 1st Engineering Co., Ltd, Chengdu 610031 |
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Abstract For improving the interface bonding effect of the basalt fiber (BF) to cement-based material, the BF was treated with different concentration (0.4%, 0.8% and 1.2%) of CG550,CG570,Z6518 respectively.The mechanical properties of the treated fiber and BF enhanced cement composites are studied. The experimental results show that with the increasing concentration of CG550 solution, the mechanical properties of treated fiber and BF/cement composite increase as a whole. The treated BF and BF/cement composites have the best mechanical properties,as the concentration of CG550 solution is 1.2%. With the increasing concentration of CG570 solution, the fracture strength of treated BF increases firstly and then decreases,and the fracture elongation remains basically unchanged. The fracture strength of BF raises by 5.8%. The mechanical properties of BF/cement composites increases with the increasing of solution concentration.The highest flexural strength raises by 24.4%, the highest compressive strength raises by 7.3%; with the increasing concentration of Z6518 solution, the fracture strength of treated BF decreases gradually, but the fracture elongation increases gradually, showing good ductility. The mechanical properties of BF/cement composites is not improved significantly with the change of concentration.Considering the experimental results, the modification effects of three silane coupling agents on the fibers were ranked as CG570, CG550 and Z6518.
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Published: 25 November 2019
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| Fund:This work was financially supported by the Fundamental Research Funds for Beijing Universities (X18265). |
| About author:: Lin Wang received his master’s degree in Tsinghua University and Ph.D. degree in materials science and engineering from the China University of Mining and Technology Beijing. He is teaching at Beijing University of Civil Engineering and Architecture and has published more than 10 journal papers as the first author, applied 3 invention patents. His research interests focus on the cement material. |
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