摘   要：由于受高温天气的影响，高速铁路CRTSⅡ型板式无砟轨道宽窄接缝混凝土的裂缝、破损病害发生频率较高，为此研制了满足运营高速铁路宽窄接缝修复施工要求的聚合物混凝土材料，成功应用于京沪高铁德禹特大桥宽窄接缝病害整治工程，并从工程概况、施工工艺、修复材料、施工方法及施工质量控制等方面对宽窄接缝混凝土伤损修复施工进行了归纳和总结。
 Abstract: Because of the influence of high temperature, the concrete crack and damage which are found in the wide and narrow construction joint of the high-speed railway CRTS Ⅱ slab type ballastless track hare a high frequency of occurrence. The polymer modified concrete which met the requirements of the wide and narrow construction joint concrete repair project on the operating high-speed railway line are designed and prepared. And the polymer modified concrete was successfully applied in the wide and narrow construction joint of concrete repair project which located in the Deyu super bridge of the Beijing-Shanghai high-speed railway. That repair project was induced and summarized from the project overview, construction technology, repair materials, construction methods and construction quality and so on.