高性能混凝土中碱骨料反应的抑制措施研究

Reduction Expansion of the Alkali-aggregate Reaction in High Performance Concrete

本文介绍了碱骨料反应的定义以及碱骨料反应发生的条件、对比了国内外抑制碱骨料反应的主要措施以及用于高性能混凝土中的抑制措施研究状况，通过比较可以得出抑制碱骨料反应的主要措施为：（1）使用非活性集料；（2）控制水泥和混凝土碱含量（Na2O，Na2O＋0．658K2O）；（3）控制湿度；（4）使用混合材或化学外加剂。

in this paper, the alkali-aggregate reaction and the condition of the alkali-aggregate reaction is introduced. The reduction expansion ways of alkali-aggregation reaction in home and abroad are compared, the reduction expansion ways of alkali-aggregation reaction also is introduced in high performance concrete, the conclusion is that the reduction expansion ways of alkali-aggregation mainly include （1）using ant-active aggregation; （2）controling the alkali quantity in the cement and concrete （3） controling the moisture （4）using the admixture and chemical additive.