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中文摘要：
主要研究了盐溶液干湿循环条件下不同老化时间橡胶混凝土圆柱体的轴压力学性能。试验中对橡胶掺量为0、10％、20％、30％的四组混凝土圆柱试件均进行了0、90、180次干湿循环处理，通过对处理后的试件进行轴心抗压试验测得应力-应变曲线，分析了不同橡胶掺量和不同老化时间对橡胶混凝土力学性能的影响。试验表明：随着橡胶掺量的增加，橡胶混凝土抗压强度和最大荷载处对应的峰值应变均逐渐降低，但同一橡胶掺量下混凝土随着盐溶液干湿循环次数的增加，峰值应变变化不大；经过90次和180次干湿循环后，橡胶掺量为0、10％、20％的混凝土抗压强度增加明显，而掺量为30％的混凝土经过180次干湿循环后抗压强度降低9．16％。
英文摘要：
Mechanical properties and durability of rubber powder concrete under dry - wet cycling environment was studied. Based on different rubber replacement（0,10%,20%,30%）and different times of the dry -wet cycling （0,90,180）. It can be concluded that axial compressive strength of rubber powder concrete decreased when the rate of replacement increased. However, the relationship between ultimate strain of rubber powder concrete with times of the dry - wet cycling was not obvious. The relationship between ultimate strain of rubber powder concrete with the rate of replacement was obvious and ultimate strain of rubber powder concrete decreased when the rate of replacement increased.
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Experimental study on rehabilitation of corrosion-damaged reinforced concrete beams with carbon fibe
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