再生混凝土微观结构特征及其耐久性改善技术

Microscopic structural features and durability improvement measures of recycled aggregate concrete

基于再生粗骨料的几何特征及其对再生混凝土微观结构的影响,分析了再生混凝土耐久性较普通混凝土差的原因。从再生骨料的优化及水泥石的结构密实的角度出发,对再生混凝土耐久性改善方法进行了理论分析。同时,综述讨论了对改善再生混凝土耐久性的有效技术措施,并就再生混凝土耐久性问题研究提出了看法。

Based on geometrical characteristic of recycled aggregate and its influence on the microscopic structural of recycled aggregate concrete, the thesis mainly analyzed the reason why the durability of recycled aggregate concrete was lower than that of the ordinary concrete. In terms of recycled aggregate optimization and concrete compacting structure, analysed the theory of the improvement measures for the durability of recycled aggregate concrete. Moreover, discussed the effective measures that could improve the durability of recycled aggregate concrete and reviewed on the research of recycled aggregate concreteI s durability.