长江科学院院报 ›› 2015, Vol. 32 ›› Issue (7): 119-121.DOI: 10.3969/j.issn.1001-5485.2015.07.022

• 水工结构与材料 • 上一篇    下一篇

新型裂缝修补材料在金沙江溪洛渡溢洪道中的应用研究

邝亚力a, b, c, 韩炜a, b, c, 景锋a, b, c, 邵晓妹a, b, c, 李珍a, b, c, 汪在芹a, b, c   

  1. 长江科学院 a.长江工程技术公司;b.水利部水工程安全与病害防治工程技术研究中心; c.国家大坝安全工程技术研究中心,武汉 430010
  • 收稿日期:2014-06-06 出版日期:2015-07-01 发布日期:2015-07-07
  • 通讯作者: 韩炜(1976-),男,河南新乡人,教授级高级工程师,博士后,主要从事水工新型材料及纳米复合材料研究,(电话)027-82829532(电子信箱)will_ecust@163.com。
  • 作者简介:邝亚力(1963-),男,湖南郴州人,高级工程师,主要从事水工材料方面的研究, (电话)027-82829752(电子信箱)308025854@qq.com。
  • 基金资助:
    长江科学院技术开发和成果转化推广项目(CKZS2014015/CF)

Application of Novel Polyurea Crack Repair Material to the Spillway of Xiluodu Hydropower Station

KUANG Ya-li1,2,3, HAN Wei1,2,3, JING Feng1,2,3, SHAO Xiao-mei1,2,3, LI Zhen1,2,3, WANG Zai-qin1,2,3   

  1. 1.Wuhan Changjiang Engineering Technology Company,Yangtze River Scientific Research Institute,Wuhan 430010,China;
    2.Research Center on Water Engineering Safety and Disaster Prevention Technology of Ministry of Water Resources,Yangtze River Scientific Research Institute,Wuhan 430010,China;
    3.National Research Center on Engineering Technology of Dam Safety,Yangtze River Scientific Research Institute,Wuhan 430010,China
  • Received:2014-06-06 Online:2015-07-01 Published:2015-07-07

摘要: 溪洛渡水电站的溢洪道受高速水流和气候条件的影响,混凝土过流面将产生冲磨、气蚀和碳化破坏,混凝土表面需进行涂装;溢洪道伸缩缝随温度变化而伸缩变化,使裂缝修补材料易出现破损、撕裂造成防护失效。为了解决溢洪道过流面伸缩缝的渗水及冲磨、气蚀、碳化问题,选新型CW680聚脲裂缝修补材料系统进行现场试验,经过近8个月现场应用,检测性能指标表明该材料具有优异的粘结性和裂缝修补能力,同时具有优异的抗渗性能和耐久性能。

关键词: 溪洛渡, 溢洪道, 伸缩裂缝, 聚脲, 慢反应

Abstract: Affected by high-speed flow and specific weather conditions, the concrete’s overflow surface of Xiluodu hydropower station spillway is subjected to abrasion, cavitation and carbonization. Resistant material was coated on the concrete surface. But along with the deformation of concrete’s structural joint caused by temperature changes, the coating material is prone to be damaged which results in protection failure. In order to solve the problems, a novel polyurea crack repair material CW680 was used to prevent the leakage, abrasion, cavitation and carbonization of structural joint. Application test in 8 months has proved good effect. This new material has excellent adhesive and repairing ability, and has good impervious performance and durability.

Key words: Xiluodu hydropower station, spillway, structural joint, polyurea, slow reaction

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