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斋堂水库溢洪道混凝土剥蚀、碳化严重,对剥蚀破坏混凝土凿除表面松动层,植筋挂钢筋网浇筑微膨胀混凝土加固。对于混凝土表面碳化,采用了2种处理方式,方法1为植筋挂铅丝网和钢丝网再抹微膨胀硅粉水泥砂浆,方法2为植筋挂铅丝网再抹聚合物水泥砂浆。就斋堂水库溢洪道混凝土剥蚀、碳化不同处理方法进行了论述,并提出了施工中应注意的问题。
Zhaitang reservoir spillway concrete erosion, serious carbonation, denudation and destruction of concrete surface excavated chipping away, planting bar reinforcement net placement of micro-expansion of concrete reinforcement. For the concrete surface carbonization, the use of two kinds of treatment, method 1 for the planting of wire and wire mesh reticulation plus swelling of silica fume cement mortar, method 2 for the planting of wire mesh rewrap polymer cement mortar. The different methods of denudation and carbonization of spillway concrete in Zhaitang reservoir are discussed, and the problems that should be noticed in the construction are put forward.