摘要
详细介绍了C50高性能微膨胀钢管混凝土配合比设计方法,研究了水灰比、膨胀剂类型、减水剂类型等因素对高性能微膨胀钢管混凝土的工作性能、凝结时间、强度、膨胀率等性能的影响,提出了一种C50高性能微膨胀钢管混凝土的设计配合比,并进行了工程应用验证。
The design method for the C50 high-performance slightly expansive steel-tube confined concrete is discussed. The effects of the water to binder ratio, the type of the expansive admixture and the superplastieizers on the workability, setring time, strength and the volumetric changes are investigated; A mix proportion for the C50 high-performance slightly expansive steel-tube confined concrete is proposed and applied in a construction project.
出处
《建材世界》
2010年第2期25-28,共4页
The World of Building Materials
关键词
钢管拱桥
微膨胀钢管混凝土
限制膨胀率
自生体积变形
steel-tube arc bridge
slightly expansive steel-tube confined concrete
restrained expansive coefficient
autogenous shrinkage
