A kind of I-shaped film repair method of underwater concrete crack

Abstract

An I-shaped film repairing technology for an underwater concrete crack comprises the following steps of (1) determining a technical scheme, (2) installing a composite outer wrapping plate, (3) installing an inner wrapping plate on the surface facing water, (4) installing an outer wrapping plate on the surface back onto water, (5) conducting grouting and (6) conducting acceptance inspection. According to the I-shaped film repairing technology for the underwater concrete crack, the defects in the prior art are overcome, the high-difficulty and high-requirement procedures of grooving, chip removal, blocking and the like are reduced, template construction is formed, the construction speed is greatly increased, the construction difficulty is greatly reduced, an anti-permeability system is greatly improved, the anti-permeability effect is greatly improved, and firm connection is further enhanced. Meanwhile, according to the scheme, an elastic formwork and a rigid formwork are combined, rigid blocking materials are replaced, and the impact resistance, corrosion resistance and replaceability of coverings on the surface of the crack are improved. The rainfall influence on a lot of reservoir and port engineering cofferdams is reduced, the complexity of underwater construction is reduced, the concrete crack can be effectively treated at the early stage, and meanwhile maintenance work is easily carried out after treatment.

Description

technical field [0001] The invention relates to the technical field of concrete crack treatment, in particular to an I-shaped membrane repair method for underwater concrete cracks. Background technique [0002] Concrete cracks are one of the more common diseases of underwater concrete structures. Due to the long-term underwater concrete, the working environment is relatively harsh. Once cracks occur, the building will leak and pose a direct hazard to the safety of the building. If it is not repaired in time, it may cause irreparable losses. However, due to actual operating conditions, many concretes with seams cannot be repaired in an anhydrous environment and must be repaired underwater. [0003] Over the years, many units at home and abroad have done a lot of excellent work in the repair of underwater concrete cracks, and explored underwater concrete crack sealing technology, underwater concrete crack surface covering technology, underwater concrete crack grouting technol...

AI Technical Summary

Problems solved by technology

The interface between the plugging material and the concrete is easily eroded by the water medium and further damaged

Images