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在农村钢筋混凝土工程中,发生较多的工程质量问题是:麻面、蜂窝、孔洞、露筋、裂隙夹层、裂缝等。今据实践经验,介绍其有效补修法: 一、麻面补修法如果混凝土表面作抹面或粉刷,可不作补修。否则,应在麻面部位喷水湿润后,用混凝土同标号砂浆抹压,将麻面抹平。二、蜂窝补修法 (1)对小蜂窝,洗刷干净后,用1:2或1:2.5水泥砂浆抹面压实。(2)对较大蜂窝,要凿去蜂窝处薄弱松散部分及突出骨料颗粒,用钢
In the rural reinforced concrete project, more engineering quality problems occur: pockmarks, honeycombs, holes, exposed tendons, cracked sandwiches, cracks, and so on. According to practical experience, this year introduces its effective repair method: First, the repair method of numbness If the surface of concrete is plastered or painted, no repairs can be made. Otherwise, it should be sprayed with water on the surface of the ramie, and then use concrete to press with the marking mortar to level the matte surface. Second, the honeycomb repair method (1) After cleaning the small cell, use 1:2 or 1:2.5 cement mortar surface compaction. (2) For larger honeycombs, the weak loose part of the honeycomb and the protruding aggregate particles must be cut off.