水力发电学报2012，Vol.31Issue(4)：207-210,4.
低热硅酸盐水泥对大坝混凝土性能的影响
Influence of low-heat Portland cement on properties of dam concrete
摘要
Abstract
This paper presents a systematic study on the influence of low-heat Portland cement concrete （LHC） and moderate-heat Portland cement （MHC） on the properties of dam concrete, such as mechanical strength, ultimate tension, drying shrinkage, anti-cracking, adiabatic temperature rise, frost resistance and impermeability. Relative to MHC, LHC shows lower 7d strength, slightly higher 90d and 180d strengths, and similar 28d strength, and its ultimate tensions of 28d, 90d and 180d are increased. The study also reveals that LHC has better early anti-cracking property and its 28d adiabatic temperature rise is decreased by 5.3℃ , while its drying shrinkage, frost resistance and impermeability are close to MHC. Thus, LHC improves the properties of dam concrete, favorable to dam safety.关键词
水工材料/大坝混凝土性能/试验研究/低热硅酸盐水泥Key words
hydraulic material/properties of dam concrete/experiment study/low-heat Portland cement分类
建筑与水利引用本文复制引用
计涛,纪国晋,陈改新..低热硅酸盐水泥对大坝混凝土性能的影响[J].水力发电学报,2012,31(4):207-210,4.基金项目
国家自然科学基金 （）
水利部公益性行业科研专项 （）
