面板混凝土防裂配合比优化研究  

Study on Anti-Cracking Mix Proportion Optimization of Face Slab Concrete

作　　者：黄小蕙 曹希良 张虹赟 张研 HUANG Xiaohui;CAO Xiliang;ZHANG Hongyun;ZHANG Yan(Sinohydro Bureau 12 Co.,Ltd.,Jiande 311600,China;College of Harbour,Coastal and Offshore Engineering,Hohai University,Nanjing 210098,China)

机构地区：[1]中国水利水电第十二工程局有限公司,浙江建德311600 [2]河海大学港口海岸与近海工程学院,江苏南京210098

出　　处：《红水河》2022年第2期6-9,20,共5页Hongshui River

基　　金：国家自然科学基金(51579088);江苏省自然科学基金(BK20161507)。

摘　　要：针对西部某水利水电工程中面板堆石坝的面板混凝土设计要求,确定基准配合比,测试结果表明基准配合比满足强度和抗冻抗渗等耐久性要求。在此基础上,考虑混凝土大面积施工要求,对防裂剂掺量进行优化设计,最终提出防裂优化配合比。现场施工采用优化配合比的面板混凝土,施工后观测未发现面板开裂。该研究可为相关工程的大面积面板混凝土的防裂设计提供有益指导。According to the design requirements of concrete faced rockfill dam in a water conservancy and hydropower project in western China, the benchmark mix proportion is determined. The test results show that the benchmark mix proportion meets the durability requirements of strength, frost resistance and impermeability.On this basis, considering the mass construction requirements of concrete, the dosage of anti-cracking agent is optimized, and the anti-cracking optimization mix proportion is finally proposed. The face slab concrete with optimized mix proportion is used in the field construction, and no face slab cracking is observed after construction. This study can provide useful guidance for the crack prevention design of massive face slab concrete in related projects.

关 键 词：面板堆石坝 面板混凝土 防裂剂 混凝土配合比 优化 

分 类 号：TV641.43[水利工程—水利水电工程]