| 乌弄龙水电站大坝混凝土抑制碱骨料反应综合措施 |
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| 引用本文： | 杨再志,杨柳,刘军,杨祥,高朝兵.乌弄龙水电站大坝混凝土抑制碱骨料反应综合措施[J].云南水力发电,2021(2). |
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| 作者姓名： | 杨再志 杨柳 刘军 杨祥 高朝兵 |
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| 作者单位： | 华能澜沧江水电股份有限公司 |
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| 摘 要： | 混凝土碱骨料反应是引起混凝土耐久性下降的主要原因之一,由于碱骨料反应造成的结构破坏难以阻止其继续发展和修补而被称为混凝土的"癌症"。为抑制混凝土碱骨料反应,提高混凝土工程的耐久性和长期安全性,需科学评定骨料碱活性,采取有效抑制碱骨料反应的综合措施。乌弄龙水电站大坝混凝土骨料具有潜在危害性碱—硅酸反应,在施工阶段通过综合采取抑制碱骨料反应的技术措施,有效抑制了混凝土碱骨料反应。
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| 关 键 词： | 混凝土 碱活性 抑制 大坝 |
Comprehensive Measures for Restraining Alkali Aggregate Reaction of Dam Concrete of Wulonglong Hydropower Station |
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| YANG Zai-zhi,YANG Liu,LIU Jun,YANG Xiang,GAO Chao-bing.Comprehensive Measures for Restraining Alkali Aggregate Reaction of Dam Concrete of Wulonglong Hydropower Station[J].Yunnan Water Power,2021(2). |
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| Authors: | YANG Zai-zhi YANG Liu LIU Jun YANG Xiang GAO Chao-bing |
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| Affiliation: | (Huaneng Lancang River Hydropower Co.,LTD.,Kunming 650214,China) |
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| Abstract: | The alkali-aggregate reaction of concrete is one of the main reason for decline in the durability of concrete.It is known as"cancer"of concrete because the structural damage caused by alkali-aggregate reaction can’t prevent its further development and repair.To inhibit alkali-aggregate reaction of concrete and improve durability and long-term safety of concrete engineering,it is necessary to scientifically evaluate alkali-aggregate activity and take comprehensive measures to effectively inhibit alkali-aggregate reaction.Dam concrete aggregate of Wulonglong Hydropower Station has potential harmful alkali-silicate reaction.The alkali-silicate reaction of concrete is effectively restrained by comprehensive technical measures to restrain alkali-aggregate reaction during construction stage. |
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| Keywords: | concrete alkali activity inhibition dam |
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