论文部分内容阅读
1 水泥混凝土碱骨料反应碱骨料反应是混凝土原材料中的水泥、外加剂、混合物和水中的碱与骨料中的活性成分反应,在混凝土浇筑成型扯若干天逐渐反应,反应生成物吸吸水膨胀使混凝土产生内部应力,膨胀开裂,导致单纯凝土失去设计性能。由于活性骨料经搅拌后大体上呈均匀颁布,所以一旦发生碱骨料反应,混凝土内各部分均产生膨胀应力,将混凝土自身胀裂,发展严重的只能拆
1 Alkali aggregate reaction of cement concrete Alkali aggregate reaction is the reaction of cement, admixture, alkali in the mixture with water and the active ingredients in the aggregate in the concrete raw material for several days. The reaction product gradually absorbs water Expansion of the concrete to produce internal stress, swelling and cracking, resulting in the loss of design performance of simple concrete. As the active aggregate is generally uniformly distributed after stirring, once the alkali aggregate reaction occurs, all parts of the concrete have an expansion stress, and the concrete itself cracks and develops.