微膨胀混凝土在水库大坝加固工程中的应用

Application of micro-expansive concrete in the reinforcement of the major dam of a reservoir

对微膨胀混凝土的原材料、配合比设计、性能及其收缩性进行了研究。通过混凝土配合比的设计和优选,配制出满足设计要求的掺粉煤灰的高性能混凝土;研究了配制混凝土的拌合物性能、物理力学性能及变形性能进行了研究;分析了膨胀混凝土自身体积变形的试验数据与计算微膨胀混凝土的模型之间的关系。

The raw and processed materials ,design of the mixture ratio ,property and contractibility of micro-expansive concrete are stutied. The high-powered concrete which is mixed with powdery cinders according to the design is compounded based on the optimization of the mixture ratio, and the property of mixtures ,physical and mechanical property and deformation property of the compounded concrete are investigated. The relation between the experimental data of self-expansive volume of micro-expansive concrete and the computational model of micro-expansive concrete is analyzed objectively.