| 客运专线耐久性混凝土对骨料的指标要求及原因浅析 |
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| 引用本文： | 陈智.客运专线耐久性混凝土对骨料的指标要求及原因浅析[J].现代隧道技术,2010,47(2). |
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| 作者姓名： | 陈智 |
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| 作者单位： | 中铁隧道集团有限公司,洛阳,471009 |
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| 摘 要： | 客运专线施工中的混凝土配制要求采用耐久性混凝土,而经验和实践证明优质骨料是配制耐久性混凝土的关键因素;客运专线标准也都对骨料的质量指标提出了很高的要求.文章通过对现行规范和验标的解读,分析了优质骨料在优质耐久性混凝土中的作用机理.
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| 关 键 词： | 客运专线 耐久性混凝土 骨料质量指标 |
Aggregate Requirements of Durable Concrete Used on Passenger-Dedicated Railways and Reason Analysis |
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| Chen Zhi.Aggregate Requirements of Durable Concrete Used on Passenger-Dedicated Railways and Reason Analysis[J].Modern Tunnelling Technology,2010,47(2). |
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| Authors: | Chen Zhi |
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| Institution: | Chen Zhi(China Railway Tunnel Group Co.,Ltd.,Luoyang 471009) |
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| Abstract: | Concrete casted on passenger-dedicated railways should be durable.Construction experience and practice show that high quality aggregate is the key for durable concrete mixing.The latest issued passenger-dedicated railway standards claim high requirements for aggregate.Based on the analysis of the issued criteria,the mechanism of the role played by high quality aggregate in high quality durable concrete is studied in this paper. |
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| Keywords: | Passenger-dedicated railway Aggregate Concrete Durability Quality indices |
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