人民长江2017，Vol.48Issue(7)：92-95,4.DOI:10.16232/j.cnki.1001-4179.2017.07.020
掺氧化镁混凝土的安定性试验方法与判定准则
Discussion on soundness test method and judgment criteria for magnesium oxide's concrete
李家正 1李明霞 1林育强1
作者信息
- 1. 长江科学院 科技成果推广中心,湖北 武汉 430010
- 折叠
摘要
Abstract
In the process of magnesium oxide hydration, the volume would expand and the hydration speed is slower than that of cement minerals.Adding magnesium oxide by internal mixing and external additive method are the research direction to solve the problem of concrete shrinkage cracking.However, the concrete volume would increase by hysteretic expansion of magnesium oxide.The judgment methods and criterion are used to evaluate the effect and soundness of magnesium oxide.Based on pressure-braise soundness test, the rationality of existing various experimental methods and judgment criterion are discussed from the aspect of soundness judgment object, and the future research emphasis is pointed out.关键词
氧化镁/安定性试验/判定准则/混凝土Key words
magnesium oxide/soundness test/judgment criteria/concrete分类
建筑与水利引用本文复制引用
李家正,李明霞,林育强..掺氧化镁混凝土的安定性试验方法与判定准则[J].人民长江,2017,48(7):92-95,4.
