A kind of construction method of waterproof coating

Abstract

The invention discloses a construction method of a waterproof coating, relates to the technical field of building materials, and aims to solve the problem of poor overall structural quality caused by uneven spraying at the arch foot during construction of the waterproof coating. The main points of the technical solution are: Step 1, Clean the peripheral wall of the tubular tunnel with a water gun, and level the surface; step 2, use a spraying device on the pit bank to spray adhesive on the peripheral wall of the tubular tunnel, at the arch waist, along the length of the tubular tunnel Square, spray twice from front to back, then from back to front, the adhesive slides along the arc of the outer peripheral wall of the tubular tunnel to the arch foot; step 3, use a spraying device to spray and lubricate the outer peripheral wall of the tubular tunnel agent to form a lubricating layer. In the present invention, an adhesive layer and a lubricating layer are coated on the outer peripheral wall of the tubular tunnel, and then the waterproof paint can slide down to the bottom along the arc of the outer peripheral wall, so that the waterproof paint can be evenly coated on the arch waist to the arch foot.

Description

technical field [0001] The invention relates to the technical field of building materials, more specifically, it relates to a construction method of waterproof paint. Background technique [0002] In current engineering, the surface of most engineering structures needs to be coated with a waterproof coating to prevent water vapor from entering the engineering structure and causing damage to the structure. Tunnels are engineering buildings buried in the ground and are a form of human use of underground space. . Tunnels can be divided into traffic tunnels, hydraulic tunnels, municipal tunnels, mine tunnels, and military tunnels. [0003] Existing underwater tunnels generally adopt the open cut method, drain water, dig deep pits, and then construct to form a large tubular tunnel, and finally fill the pits, such as figure 1 As shown, it includes a deep pit, a pit bank, and a tubular tunnel arranged in the deep pit. The tubular tunnel forms an arched structure with the inner wa...

AI Technical Summary

Problems solved by technology

[0003] Existing underwater tunnels generally adopt the open cut method, drain water, dig deep pits, and then construct to form a large tubular tunnel, and finally fill the pits, such as figure 1 As shown, it includes a deep pit, a pit bank, and a tubular tunnel arranged in the deep pit. The tubular tunnel forms an arched structure with the inner wall of the deep pit. The arched structure includes a vault, an arch waist, and an arch foot. Entering the engineering structure will cause damage to the structure. Before filling the pit, it is necessary to coat the outer wall of the tubular tunnel with a waterproof coating. The arch structure formed by the tubular tunnel and the bottom of the pit is coated with the outer wall between the arch waist and the arch foot. When spraying, because it is arc-shaped and forms an included angle with the bottom of the pit, it cannot be sprayed evenly during spraying, and the staff need to enter the pit. Because the pit is very deep, it is not safe and inconvenient for the staff to construct in the pit.

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