新型裂缝修补材料在金沙江溪洛渡溢洪道中的应用研究  

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

作　　者：邝亚力[1,2,3] 韩炜[1,2,3] 景锋[1,2,3] 邵晓妹[1,2,3] 李珍[1,2,3] 汪在芹[1,2,3] 

机构地区：[1]长江科学院长江工程技术公司,武汉430010 [2]长江科学院水利部水工程安全与病害防治工程技术研究中心,武汉430010 [3]长江科学院国家大坝安全工程技术研究中心,武汉430010

出　　处：《长江科学院院报》2015年第7期119-121,共3页Journal of Changjiang River Scientific Research Institute

基　　金：长江科学院技术开发和成果转化推广项目(CKZS2014015/CF)

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。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 no-vel 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.

关 键 词：溪洛渡 溢洪道 伸缩裂缝 聚脲 慢反应 

分 类 号：TV651.1[水利工程—水利水电工程]