摘要
通过对高温后钢纤维高强混凝土和素高强混凝土力学性能的试验研究,探讨了钢纤维高强混凝土的抗压强度、抗拉强度和抗折强度在不同温度下的变化规律,分析了温度对钢纤维高强混凝土力学性能的影响机理。研究结果表明,钢纤维高强混凝土的抗压强度、抗拉强度和抗折强度随温度的升高而降低,在400℃以内,降低幅度较小,400℃以后显著降低。相同温度时,钢纤维提高了高强混凝土的高温后强度值。
Through the experimental study on the mechanical property of steel fiber reinforced high-strength concrete（SFHSC） and normal high-strength concrete （ HSC ） after high temperature, the influencing law of the compressive strength, splitting strength and rupture strength of SFHSC under different temperature were discussed. The influence mechanism of temperature to the mechanical property of SFHSC was analyzed. The results show that the compressive strength, splitting strength and rupture strength of SFHSC decreased while the temperature is rising. The falling-ranges of above strengths are less under 400℃ but rise apparently after 400℃. When the temperature is the same, the steel fiber improves the strength value of HSC after high temperature.
出处
《混凝土》
CAS
CSCD
北大核心
2006年第11期4-6,共3页
Concrete
基金
河南省杰出青年科学基金(0612002300)
关键词
高温
高强
钢纤维
力学性能
high temperature
high-strength
steel fiber
mechanical property
