Repairing method for local defect of concrete in water level change region and repairing device

Abstract

The invention discloses a repairing method for the local defect of concrete in a water level change region and a repairing device. The repairing device comprises a template, a stainless steel plug bolt and a plurality of inclined support rods, wherein the template is used for covering a defected cavity of concrete, water stopping rubber strips are arranged around the inner surface of the template, air holes capable of being opened and closed are arranged in the top of the template, and grouting holes capable of being opened and closed are arranged at the bottom of the template; the stainless steel plug bolt is fixedly connected with the center part in the defected cavity of the concrete, and the template is fixedly connected with the outer side of the defected cavity due to the match among bolts, positioning nuts and sealing nuts, so that the defected cavity of the concrete can be completely covered by the template; a counter-pull screw rod is in butt joint with a free end of the plugbolt by a sleeve, and an inclined rod support disc is rotatablely connected to the counter-pull screw rod; and the inclined support rods can adjust the lengths of rod bodies, one end of each inclinedsupport rod is supported on the outer surface of the template, and the other end of each inclined support rod is supported on the inclined rod support disc. The device disclosed by the invention has the characteristics of being simple in structure, sealed and waterproof, light and portable, easy to operate on the spot and the like.

Description

technical field [0001] The invention relates to a method for repairing local defects of concrete in a water level fluctuation area; Background technique [0002] The concrete in the water level fluctuation area often produces primary defects such as honeycomb and segregation during construction. The existence of these primary defects will seriously reduce the protective function of concrete on steel bars and shorten the service life of structures. At present, the above-mentioned local defects have not been effectively repaired due to the lack of effective repair methods. Usually, it is only a simple application of repair mortar, and the erosion and soaking of the repair materials that have not yet solidified by the tide will seriously affect the repair. Effect. In addition, there is another repair method that is often used, namely: use expansion bolts to fix along the periphery of the formwork, and inject repair mortar into the defect cavity, and then remove the formwork af...

AI Technical Summary

Problems solved by technology

At present, the above-mentioned local defects have not been effectively repaired due to the lack of effective repair methods. Usually, it is only a simple application of repair mortar, and the erosion and soaking of the repair materials that have not yet solidified by the tide will seriously affect the repair. Effect

In addition, there is another repair method that is often used, namely: use expansion bolts to fix along the periphery of the formwork, and inject repair mortar into the defect cavity, and then remove the formwork after the repair mortar meets the performance requirements. This method has the following two Defects in aspects: First, the periphery of the formwork is not tight, and the tide will repeatedly erode the unsolidified repair mortar at the edge; Second, after the formwork is removed, a considerable number of expansion bolts will be left in the solid structure, which will become new corrosion channels

[0003] It can be seen that the methods for repairing local defects of concrete in the water level fluctuation area in the prior art still need to be improved.

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