水利水电科技进展2016，Vol.36Issue(6)：64-68,5.DOI:10.3880/j.issn.10067647.2016.06.012
高掺氧化镁混凝土在某水电站拱坝工程中的应用
Application of concrete with high content of MgO in arch dam of hydropower station
摘要
Abstract
In order to demonstrate the superiority of using MgO-mixed concrete in dam construction, autoclave tests of cement-fly ash-stone dust mixed paste specimens were conducted according to the autoclave principle, and the mixing ratio of MgO in the specimens was increased to 6. 5%. This technology was applied to the concrete arch dam of a grade IV small-scale (type 1) hydropower station. The results show that concrete with a high content of MgO can improve the anti-cracking performance of the dam concrete and simplify temperature control measurements of mass concrete, allowing for an improved concrete dam construction method, in which few induced joints are needed, longitudinal joints can be cancelled, and entire concrete blocks of the dam body can be poured.关键词
MgO混凝土/压蒸试验/安定掺量/自生体积变形/拱坝Key words
MgO-mixed concrete/autoclave test/soundness admixing amount/autogenic volume deformation/arch dam分类
建筑与水利引用本文复制引用
陈昌礼,赵其兴,李维维,王兴德,徐普,颜少连..高掺氧化镁混凝土在某水电站拱坝工程中的应用[J].水利水电科技进展,2016,36(6):64-68,5.基金项目
贵州省教育厅“125”重大科技专项([2012]004) （[2012]004）
国家自然科学基金(51269003,50969002) （51269003,50969002）
