| 提高混凝土材料抗冻性措施的研究 |
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| 引用本文： | 张士萍,董良峰,费正岳. 提高混凝土材料抗冻性措施的研究[J]. 混凝土, 2011, 0(10). DOI: 10.3969/j.issn.1002-3550.2011.10.038 |
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| 作者姓名： | 张士萍 董良峰 费正岳 |
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| 作者单位： | 1. 南京工程学院建筑工程学院,江苏 南京,211167
2. 巴斯夫化学建材有限公司,上海,200001 |
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| 基金项目： | 南京工程学院引进人才科研启动基金(YKJ201013); 高性能土木工程材料国家重点实验室开放基金课题(2010CEM019) |
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| 摘 要： | 分别研究了掺纤维和引气剂两种措施对抗冻性的影响作用。通过对比空白混凝土、纤维混凝土以及引气剂混凝土在冻融循环过程中的质量损失和动弹性模量的变化,发现纤维和引气剂均可以有效提高混凝土的抗冻性。纤维通过本身的抗裂性能,抑制混凝土表面的开裂和剥落,从而提高抗冻性,而引气剂通过优化混凝土内部孔结构,从而提高抗冻性。
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| 关 键 词： | 纤维 引气剂 抗冻性 |
Research on improvement of frost resistance for concrete material |
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| ZHANG Shi-ping,DONG Liang-feng,FEI Zheng-yue. Research on improvement of frost resistance for concrete material[J]. Concrete, 2011, 0(10). DOI: 10.3969/j.issn.1002-3550.2011.10.038 |
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| Authors: | ZHANG Shi-ping DONG Liang-feng FEI Zheng-yue |
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| Affiliation: | ZHANG Shi-ping 1,DONG Liang-feng 1,FEI Zheng-yue 2(1.Department of Architecture Civil Engineering,Nanjing Institute of Technology,Nanjing 211167,China,2.BASF Construction Chemicals(Shanghai) Co.,Ltd.,Shanghai 200001,China) |
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| Abstract: | Influence of fiber and air entraining agent on frost resistance has been evaluated.It was found that both of fiber and air entraining agent can improve frost resistance of concrete,according to the results about mass loss and the dynamic modulus of concrete samples during the freeze-thaw cycles.Fiber promoted the frost resistance of concrete samples due to its anti-cracking performance,while air entraining agent improved the frost resistance of concrete samples due to the optimization of pore structure. |
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| Keywords: | fiber air entraining agent frost resistance |
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