本文介绍了流态耐热混凝土在云南铜业股份有限公司2#电炉基础改造工程中的应用情况。通过混凝土试配试验,采用聚羧酸系高效减水剂和辅助外加剂,配制出极限耐热温度为tmax=1200℃的C30早强、流态耐热混凝土,采取有效的混凝土生产质量控制措施,解决实际工程中混凝土浇筑困难等技术难题,大幅度缩短了工期,取得了显著的经济效益。

This paper describes and analyzes the shrinkage-compensating concrete、fiber reinforced concrete and prestressed concrete.The author think that with shrinkage-compensating concrete and fiber reinforced concrete,we can cure shrinkage cracks produced at early、middle and late stages,with no prestressed stress can were resolve postcracking at the direction of main shrinkage cracking.