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一般裂缝补强的方法是顺裂缝钻成间距为20～50cm的小孔,孔内用粘结材料固定金属套管,然后用掺有填料的胶料腻子把裂缝抹平,腻子干硬后用特制的注入泵把粘结材料注入裂缝内。粘结材料干硬后切去外露的套管。新西伯利亚铁路运输工程学院研制成一种新的裂缝补强工艺,与目前采用的方法的不同之处是,用注入器喷嘴直接注入,喷嘴紧贴混凝土表面,每隔20～50cm粘在裂缝处的橡胶垫圈上,此垫圈能保证以10MPa外力注入粘结材料而接头不漏。
The general method of crack reinforcement is to drill a hole with a pitch of 20-50 cm along the crack. Fix the metal sleeve with adhesive material in the hole, and then use a plastic putty with filler to smooth the crack and put it dry after use. A special injection pump injects the bonding material into the crack. The adhesive material is dried and the exposed sleeve is cut off. The Novosibirsk Institute of Railway Transportation Engineering developed a new crack reinforcement process. The difference from the current method is that the nozzle is directly injected into the nozzle and the nozzle is closely attached to the concrete surface. Every 20-50cm sticks to the crack. On the rubber gasket, this gasket can ensure that the bonding material is injected with an external force of 10 MPa and the joint does not leak.