有机仿钢纤维改善天然浮石轻骨料混凝土力学性能和微观结构研究

Improving Mechanics and Microstructure of Organic Imitation Steel Fiber Lightweight Aggregate Concrete

研究了有机仿钢纤维体积掺量为0、0.3%、0.5%、0.7%、0.9%、1.2%对天然浮石轻骨料混凝土的抗压强度、抗折强度和劈裂抗拉强度等力学性能的影响;还结合气泡参数特征进行微观研究。结果表明:有机仿钢纤维对轻骨料混凝土的抗拉和抗折强度影响较大,并得出有机仿钢纤维的最佳参量为0.7%,同时混凝土的宏观力学性能和微观结构分析一致。

To study the influence of organic imitation steel fiber volume content of 0,0. 3%,0. 5%,0.7%,0. 9%,1. 2% of natural pumice lightweight aggregate concrete on compressive strength,flexural strength and splitting tensile strength. Bubble parameters characteristics of mesoscopic research is used.Results show that organic imitation steel fiber has a huge influence on compressive strength,and flexural strength 0. 7% steel fiber concrete had a ideal performance. Macro-mechanical properties and microstructure analysis of concrete are the consistent.