摘要
为了提高洞室底板及边墙抗冲耐磨性能,在其表面浇筑40 cm厚的HFC40高强度混凝土,介绍了该种混凝土的特性、施工程序、方法、工艺,并针对施工过程中遇到的泌水、离析、坍落度损失较快等问题,提出了改进措施。
For improving the performance of shock and abrasion resistance of the baseboard and side-wall of the cavern, a layer of HFC40 high-strength concrete with 40 cm thickness is poured on its surface. The characteristics and the con- strnction program, method and technology of this type concrete are introduced. Some improved measurements for the possible problems of bleeding, segregation and quick loss of slump occurred during the construction process are presen- ted.
出处
《水电与新能源》
2013年第1期40-42,共3页
Hydropower and New Energy
关键词
HFC40混凝土
延迟静置预缩
施工措施
质量控制
HFC40 concrete
delayed standing pre-shrinking
construction measurement
quality control
