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问 题 表 现原 因 推 定保护层不足引起的钢筋腐蚀及混凝土剥落钢筋定位垫块倒塌钢筋加工误差钢筋过密钢筋移动施工缝处漏水、漏锈汁 (特别是垂直接缝 )混凝土的收缩裂缝钢筋腐蚀钢筋的粘着不足沿管道的水平裂缝压浆不良混凝土的干燥收缩差混凝土振捣不良管道下方混凝土
Problem Cause Remedy Corrosion and concrete spalling caused by inadequate protective layer Reinforcement Positioning Block Collapsing Reinforcing bar machining error Reinforcing bar Reinforcing bar Moving Leakage at the construction joint Leakage (especially vertical seams) Shrinkage of concrete Cracks Reinforcement Corrosion Insufficient adhesion Horizontal cracks along the pipeline Grouting Poor Drying of concrete Contraction Poor Concrete Vibrating Poor Concrete under the pipe