通过自然湿度和水饱和混凝土在10^-55x10^-5、10^-4、5x10^-4S^-1四种应变速率下的单轴压缩试验,对比分析了两种湿度混凝土的强度、变形特性以及弹性模量等力学性能。试验结果表明:随着应变速率的增加,自然湿度和水饱和混凝土抗压峰值应力都呈增加的趋势;水饱和混凝土峰值应力、峰值应变较自然湿度混凝土减小,弹性模量较自然湿度混凝土增加,且水饱和混凝土破坏机理较自然湿度混凝土有所不同。
Through the uniaxial compression test of natural humidity and water saturated concrete trader the strain rates ranging from10^-55x10^-5、10^-4、5x10^-4S^-1, comparatively analysis the two kinds of concrete's mechanical properties such as strength properties, deformation characteristics and elastic modulus.Experimental results showed that the peak strain of natural humidity and water saturated concrete had a trend of increase in general with the increase of strain rate; water-saturated concrete's peak stress, peak strain were less than that of natural humidity concrete; elasticity modulus of water-saturated concrete was more than that of natural humidity concrete, and the failure mecha- nisms of water-saturated concrete and natural humidity concrete were different.