Performance of High-Volume Fly Ash Concrete in Hot Weather

机译：高温天气下高掺量粉煤灰混凝土的性能

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Thermal cracking is a serious problem with modern portland-cement concrete structures, especially cast-in-place massive elements made with relatively high cement content and cured under hot-weather conditions. From theoretical considerations and field experience it is concluded that blended portland-cement concrete mixtures containing 50 percent or more ASTM Class F fly ash by mass of the total cementitious material perform much better under these conditions.

机译：对于现代的波特兰水泥混凝土结构，尤其是现浇的块状构件，用相对较高的水泥含量制成并在炎热的天气条件下进行固化，热裂纹是一个严重的问题。从理论上的考虑和现场经验得出的结论是，在全部条件下，按总胶凝材料的质量计，含有50％或以上ASTM F级粉煤灰的硅酸盐-水泥混凝土掺和料性能要好得多。

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来源
《Fifth ACI International Conference on Innovations in Design with Emphasis on Seismic, Wind, and Environmental Loading; Quality Control and Innovations in Materials/Hot-Weather Concreting Dec, 2002 Cancun, Mexico》|2002年|p.47-52|共6页
会议地点 Cancun(MX)
作者
P. K. Mehta;
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作者单位

Civil and Environmental Engineering Department at the University of California at Berkeley;

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会议组织
原文格式 PDF
正文语种 eng
中图分类建筑科学;
关键词
fly ash; heat of hydration; hot weather; portland cement; thermal cracking;

机译：粉煤灰;水合热;炎热天气;硅酸盐水泥;热裂;

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机译：用于基础设施元素的自固结混凝土（sCC）和大体积粉煤灰混凝土（HVFaC）：实施。报告B，NU桥梁中高强度自密实混凝土的剪切性能。

Performance of High-Volume Fly Ash Concrete in Hot Weather

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