论文部分内容阅读
混凝土在凝结硬化的过程中会产生体积收缩,从而导致混凝土开裂、结构变形,使得构件承载能力和耐久年限大幅度降低。同时混凝土结构中还存在来自水泥或环境中的碱与集料中的矿物成分发生碱—骨料反应,致使混凝土膨胀开裂,也会影响混凝土的承载和耐久性能。这一“缩”一“胀”均成为影响混凝土的不利因素。因此,应探索将这两种不利因素统一起来,为此我们设计利用碱—碳酸盐集料产生膨胀的原理来补偿(或部分补偿)混凝土的收缩。仅供参考。
Concrete in the process of condensation hardening will produce volume shrinkage, resulting in concrete cracking, structural deformation, making the component bearing capacity and durability significantly reduced. At the same time, there is still alkali-aggregate reaction between the alkali in the cement or the environment and the mineral components in the aggregate in the concrete structure, which causes the concrete to expand and crack, and also affects the bearing and durability of the concrete. This “shrink ” “ ” inflation have become the adverse factors affecting concrete. Therefore, we should explore to unify these two unfavorable factors. For this reason, we designed to compensate (or partially compensate) the shrinkage of concrete by using the principle that the alkali-carbonate aggregate expands. for reference only.