Study on Bursting Liability of Fiber Reinforced Shaft Lining Concrete Based on Temperature and Compound Salt
ZHOU Yucheng1,2, LIU Juanhong1,2, JI Hongguang1,2, FU Shifeng3, GU Yu4
1 College of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083 2 Beijing Key Laboratory of Urban Underground Space Engineering, University of Science and Technology Beijing, Beijing 100083 3 Hebei Academy of Building Research, Shijiazhuang 050021 4 Hebei Institute of Architectural Sciences Co., Ltd., Shijiazhuang 050021
Abstract: This study focus on the bursting liability of concrete. The brittleness coefficient, impact energy index and dynamic failure time of various types and grades of fiber concrete were compared in this paper. Meanwhile, the evaluation criteria on bursting liability of concrete was put forward. According to the actual situation about ion concentration and temperature in the coastal metal mine, four types of environments were designed. The results show that fibers can arrest the growth of cracks, and improve the bursting liability of concrete. In the environment of composite salt corrosion, the compressive strength of concrete increase, all kinds of concrete develop towards strong bursting liability, and high temperature can shorten the process of corrosion. Non-stream cured ultra-high performance concrete (NSC-UHPC) is a kind of ductile concrete with excellent performance in all aspects. NSC-UHPC also has no bursting liability after corrosion, since the composite salt solution has little influence on it. NSC-UHPC is a kind of concrete material which can be applied to deep shaft lining.
周昱程, 刘娟红, 纪洪广, 付士峰, 谷峪. 温度-复合盐耦合条件下纤维混凝土井壁冲击倾向性试验研究[J]. 材料导报, 2019, 33(16): 2671-2676.
ZHOU Yucheng, LIU Juanhong, JI Hongguang, FU Shifeng, GU Yu. Study on Bursting Liability of Fiber Reinforced Shaft Lining Concrete Based on Temperature and Compound Salt. Materials Reports, 2019, 33(16): 2671-2676.
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2019, Vol. 33 
