Concrete construction joint repairing structure and repairing method thereof

Abstract

The invention relates to a concrete construction joint repairing structure and a repairing method thereof. A concrete construction joint is formed by a first concrete structural face and a second concrete structural face in an opposite and spaced mode; the repairing structure is applied to a post-pouring structural face of the concrete construction joint; the repairing structure comprises a protective layer; and the protective layer is arranged on the outer side of the concrete construction joint in an attached mode and used for enhancing the tensile strength of the post-pouring structural face of the concrete construction joint. The concrete construction joint repairing structure and the repairing method thereof provided by the invention have the technical effects of increasing the tensile strength of the concrete construction joint and improving the stability of a whole concrete structure, and can be widely applied to the technical field of concrete construction.

Description

technical field [0001] The invention relates to the technical field of concrete construction. More specifically, the present invention relates to a repair structure for concrete construction joints and a repair method thereof. Background technique [0002] Constrained by construction conditions, the concrete pouring structure body has reserved horizontal construction joints during construction, and the treatment measures for the construction joints have greatly affected the integrity of the concrete structure body, thereby affecting its own strength. Especially for the underground structure of urban rail engineering, the requirements for waterproof and anti-seepage are relatively high, and the requirements for the treatment of construction joints are more stringent. Adopting a reasonable and effective construction method can effectively solve the adverse effects of construction joints on the structure body, which has far-reaching significance for construction engineering. ...

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Problems solved by technology

[0003] Most of the existing construction joints are treated by drilling the construction joints and then painting cement-based infiltration crystallization. The re-occlusion of the chiseled coarse particles reshape the strength of the structure. Concrete itself does not have tensile properties. Under the action of tension, cracks will be formed at the joints of the old and new concrete, which will affect the overall mechanical performance of the structure. At the same time, the moisture in the cracks will Infiltrating into the structure body along the construction joints, the steel bars in the structure are corroded by water, and the self-generated strength of the structure is greatly reduced. At the same time, with the corrosion of the steel bars, the gaps of the structure body at the construction joints will gradually increase, and the water-stopping ability will increase with the gap. increasing and gradually decreasing

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