摘要
溪洛渡拱坝混凝土采用玄武岩粗骨料、灰岩细骨料,针对骨料特性,通过优化配合比、提高水泥要求以及外掺MgO等工程措施,有效地改善了混凝土的极限拉伸变形和自身体积变形,提高了混凝土的抗裂特性,保证了溪洛渡大坝混凝土的质量。
As coarse aggregate of basalt and fine aggregate of limestone are used in the concrete for the construction of Xiluodu Arch Dam, the engineering measures of enhancing the cement strength and admixing MgO are adopted through the optimization of the mixing ratio for the aggregate properties; by which the utmost tensile deformation and the autogenous valume deformation of the concrete are effectively improved, and then not only the crack resistance of the concrete is enhanced, but the quality of the concrete of the dam is also ensured.
出处
《水利水电技术》
CSCD
北大核心
2010年第2期48-51,共4页
Water Resources and Hydropower Engineering
关键词
溪洛渡拱坝
混凝土
极限拉伸变形
自生体积变形
防裂措施
Xiluodu Arch Dam
concrete
utmost tensile deformation
autogenous volume deformation
crack control measure
