| 孔结构对水泥混凝土抗冻性的影响 |
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| 引用本文： | 陈磊,何俊辉,赵艳纳.孔结构对水泥混凝土抗冻性的影响[J].交通标准化,2009(3):70-74. |
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| 作者姓名： | 陈磊 何俊辉 赵艳纳 |
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| 作者单位： | 长安大学特殊地区公路工程教育部重点实验室,陕西西安710064 |
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| 摘 要： | 采用基于数字分析技术的测孔法及压汞法分别测试水泥混凝土的孔结构，研究水泥混凝土抗冻性与孔结构的关系，并对孔结构对混凝土冻融性能的影响加以分析。结果表明，掺入优质引气剞等外加剂可显著改善混凝土的孔结构，从而提高混凝土的抗冻耐久性。
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| 关 键 词： | 引气混凝土 冻融耐久性 SEM 压汞法 孔结构 孔级配 |
Relationship between Pore Structure of Concrete and Its Frost Durability Degradation |
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| CHEN Lei,HE Jun-hui,ZHAO Yan-na.Relationship between Pore Structure of Concrete and Its Frost Durability Degradation[J].Communications Standardization,2009(3):70-74. |
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| Authors: | CHEN Lei HE Jun-hui ZHAO Yan-na |
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| Institution: | (Key Laboratory for Special Area Highway Engineering Xi＇an 710064,China) |
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| Abstract: | Pore-measuring method and mercury intrusion method based on digital technology can detect the hole structure of cement concrete with the aim to ascertain the relationship between frost durability degradation of cement concrete and pore structure. Meanwhile the influence of pore structure on the anti-frost performance is analyzed. The results show that additive like excellent air-entraining agent can obviously perfect the pore structure of cement concrete so that the anti-frost performance is heightened. |
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| Keywords: | air-entraining concrete freeze-thaw durability SEM mercury intrusion method pore structure pore gradation |
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