采用Φ100 mm分离式霍普金森压杆(SHPB)系统研究了玄武岩纤维增强地质聚合物混凝土(BFRGC)的高应变率力学行为,包括抗压强度、变形及能量吸收特性的应变率效应问题.结果表明:地质聚合物混凝土材料的高应变率力学性能呈现出显著的应变率相关性;BFRGC的强度特性相对于地质聚合物混凝土(GC)无明显改善,而变形及能量吸收能力较GC有明显提高.
参考文献
| [1] | Rangan B V,Hardjito D,Wallah S E,Sumajouw D M J.Studies on fly ash-based geopolymer concrete[C]//Proceedings of the World Congress Geopolymer.France:Saint Quentin,2005:133-137. |
| [2] | Davidovits J.Geopolymeric reactions in the economic future of cements and concretes:world-wide mitigation of carbon dioxide emission[C]// Proceedings of the 2nd International Conference on Geopolymer.France:Saint Quentin,19995 111-121. |
| [3] | 李为民,许金余.玄武岩纤维对混凝土的增强和增韧效应[J].硅酸盐学报,2008,36(4):476-481.Li Weimin,Xu Jinyu.Strengthening and toughening in basalt fiber reinforced concrete[J].J Chin Ceram Soe,2008,36(4):476-481. |
| [4] | 李为民,许金余,沈刘军,李庆.玄武岩纤维混凝土的动态力学性能[J].复合材料学报,2008,25(2):135-142.Li Weimin,Xu Jinyu,Shen Liujun,Li Qing.Dynamic mechanical properties of basalt fiber reinforced concrete using a split Hopkinson pressure bar[J].Acta Materiae Compositae Sinica,2008,25(2):135-142. |
| [5] | Dias D P,Thaumaturgo C.Fracture toughness of geopolymeric concretes reinforced with basalt fibers[J].Cement and Concrete Composites,2005,27(1):49-54. |
| [6] | 李为民,许金余,沈刘军,李庆.Φ100 mm SHPB应力均匀及恒应变率加载试验技术研究[J].振动与冲击,2008,27(2):129-133.Li Weimin,Xu Jinyu,Shen Liujun,Li Qing.Experimental techniques of dynamic stress equilibrium and nearly constant strain rate loading for 100 mm-diameter SHPB test[J].J Vibration and Shock,2008,27(2):129-133. |
| [7] | GB/T 50081-2002普通混凝土力学性能试验方法标准[S].北京:中国建筑工业出版社,2003. |
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