大坝与安全 ›› 2020 ›› Issue (4): 64-.
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付颖千1，吴春忠2
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作者简介:
FU Yingqian and WU Chunzhong
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摘要： 寒冷地区的混凝土坝工作条件极其苛刻，尤其是水位变化区，混凝土容易发生冻融剥蚀破坏。笔者分析了混凝土冻融剥蚀的原因，提出了寒冷地区混凝土冻融剥蚀的修复方法，以及在混凝土表面进行耐久性防护的措施，介绍了3座大坝水位变化区混凝土冻融剥蚀修复及表面防护实例，为类似工程的缺陷处理提供了借鉴。
关键词: 冻融剥蚀, 修复, 耐久性防护, SK手刮聚脲
Abstract: The working conditions of concrete dams in cold area are extremely harsh, especially for the water level change area, the concrete is prone to freeze-thaw erosion. The author analyzes the causes of concrete freeze-thaw erosion, and puts forward the repair methods of concrete freeze-thaw erosion and the measures of concrete surface durability protection. In addition, three examples of concrete freeze-thaw erosion repair and surface protection in the water level change area are introduced to provide reference for the treatment of similar defects.
Key words: freeze-thaw erosion, repair, durability protection, SK hand scraped polyurea
付颖千，吴春忠. 寒冷地区混凝土坝上游面冻融剥蚀修复与防护[J]. 大坝与安全, 2020, 0(4): 64-.
FU Yingqian and WU Chunzhong. Repair and protection of freeze-thaw erosion on upstream face of concrete dam in cold area[J]. Dam & Safety, 2020, 0(4): 64-.
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http://magtech.dam.com.cn/CN/Y2020/V0/I4/64
