1991年采取了对裂缝水泥灌浆和对裂缝区域混凝土增加预应力的方法进行修复。
Repairs were made in 1991 by grouting the cracks and installing prestressed anchors in the cracked areas.
主要产品：灌浆料系列、膨胀剂系列、混凝土添加剂系列。
The main products: grouting material series, series expansion agent, concrete additives series.
在碾压混凝土结构中进行接缝灌浆，是目前坝工研究的重要技术问题。
The joint grouting techniques in roller compaction concrete structure is one of the most important works in dam building technology.
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