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| 高强高性能混凝土在沈阳除冰盐环境下的氯离子扩散行为 | |
| 引用本文： | 陈浩宇,余红发,李美丹,刘连新,翁智财,蒋宏伟.高强高性能混凝土在沈阳除冰盐环境下的氯离子扩散行为[J].混凝土,2006(1):23-26. |
| 作者姓名： | 陈浩宇 余红发 李美丹 刘连新 翁智财 蒋宏伟 |
| 作者单位： | 1. 沈阳建筑大学材料科学与工程学院,辽宁,沈阳,110168 2. 南京航空航天大学土木工程系,江苏,南京,210016 3. 青海大学土木工程系,青海,西宁,810016 |
| 基金项目： | 国家科技攻关项目;中国科学院资助项目;国家高技术研究发展计划(863计划) |
| 摘 要： | 采用化学分析，测定了高强混凝土（HSC）和高性能混凝土（HPC）在3种氯盐暴露环境中的自由氧离子分布规律。结果表明：HSC-HPC的抗氨离子扩散行为并不取决干其抗压强度的大小．而与活性掺合料的种类和掺量密切相关，掺加粉煤灰（FA）能够降低其氯离子扩散速度，掺加硅灰（SF）将使其氟离子扩散速度提高。分析指出，HSC尤其是掺加FA的HPC，非常适合干东北地区恶劣的露天除冰盐环境。 |
| 关 键 词： | 高强混凝土(HSC) 高性能混凝土(HPC) 氯盐环境 氯离子扩散 |
| 文章编号： | 1002-3550（2006）01-0023-04 |
| 收稿时间： | 2005-04-26 |
| 修稿时间： | 2005-04-26 |
Chloride diffusion of HSC-HPC exposed to de-icing salt condition in Shenyang |
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| CHEN Hao-yu,YU Hong-fa,LI Mei-dan,LIU Lian-xin,WENG Zhi-cai,JIANG Hong-wei.Chloride diffusion of HSC-HPC exposed to de-icing salt condition in Shenyang[J].Concrete,2006(1):23-26. | |
| Authors: | CHEN Hao-yu YU Hong-fa LI Mei-dan LIU Lian-xin WENG Zhi-cai JIANG Hong-wei |
| Affiliation: | 1. College of Materials Science and Engineering, Shenyang Jianzhu University, Shenyang 110168, China; 2. Department of Civil Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China; 3. Department of Civil Engineering, Qinghai University, Xining 810016, China |
| Abstract: | Using chemical analysis,distributing rule of free chloride in high strength concrete(HSC)and high performance concrete(HPC)in three kinds of de-icing salts environments is measured.Results indicate that:The anti-chlorine diffusion capability of HSC-HPC is not determined by stress strength,but relates to what kind of mixture and its quantity,mixing fly ash(FA) can reduce diffused velocity of chloride,Silica fume(SF)increases chloride diffused velocity.Analysis indicates that,HSC,especially HPC that mixed FA,suits for the atrocious de-icing salts environment of North-east district. |
| Keywords: | high strength concrete high performance concrete chloride environment chloride diffusion |
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