摘要
在高性能混凝土中掺用适量的饱水轻集料,可提高其内部相对湿度,促使水泥达到最大水化程度,并减少混凝土结构的开裂机率。本文阐述了微养护的重要性,分析了微养护的作用机理,提出了微养护所需轻集料用量的计算方法。
Saturated light weight aggregate, used as a part of aggregate for high performance concrete (HPC), may supply the water that is consumed during cement hydration by self - desiccation and enhance the internal relative humidity of concrete. Thus the hydration degree of cement will be promoted to the maximum value, and the cracking of high performance concrete structure will be minimized. The benefits and the mechanism of internal curing using saturated light weight aggregate in HPC were described in this poper, and the calculation method for light weight aggregate needed was proporsed.
出处
《混凝土与水泥制品》
北大核心
2003年第5期13-15,共3页
China Concrete and Cement Products
基金
江苏省自然科学基金(BK2001085)
关键词
高性能混凝土
饱水轻集料
微养护
混凝土结构
水化
High Performance Concrete
Self - desiccation
Light weight aggregate
Internal curing
