CAJ | 학술논문

通过自然湿度和水饱和混凝土在10-5、5×10-5、10-4、5×10-4 s-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。
통과자연습도화수포화혼응토재10-5、5×10-5、10-4、5×10-4 s-1사충응변속솔하적단축압축시험，대비분석료량충습도혼응토적강도、변형특성이급탄성모량등역학성능。시험결과표명：수착응변속솔적증가，자연습도화수포화혼응토항압봉치응력도정증가적추세；수포화혼응토봉치응력、봉치응변교자연습도혼응토감소，탄성모량교자연습도혼응토증가，차수포화혼응토파배궤리교자연습도혼응토유소불동。
Through the uniaxial compression test of natural humidity and water saturated concrete under the strain rates ranging from 10-5, 5×10-5,10-4,5×10-4 s-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.