【摘要】 通过对 3 1组共 62个试件的普通混凝土、新老混凝土、高性能快速修补混凝土棱柱体全过程受压试验 ,测得了掺PFAC的高性能快速修补混凝土、普通混凝土、新老混凝土的应力应变全曲线并进行了理论分析和比较 ,结果表明 :新老混凝土的应力应变全曲线中变形的变化率是基本一致的 .同时建议了高性能快速修补混凝土、普通混凝土、新老混凝土的应力应变全曲线的统一数据表达式 ,试验曲线与理论曲线吻合较好 .更多还原

【Abstract】 In the paper,the full range compression tests of ordinary concrete,new old concrete and high perfomance rapid repair concrete(HPRRC) prisms in total of 31 groups with 62 specimens are conducted.The complete stress strain curves of HPRRC with PFAC,ordinary concrete,new old concrete were analysed and compared theoretically.The essential consistent displacement of stress strain curve of new old concrete was verified with experimental results.At the same time,the unified numerical expressions of the compressive stress strain curve of the HPRRC,ordinary concrete,new old concrete are put forward.The theoretical curves from calculation are in good agreement with the experimental curves.更多还原