Construction technology of waterproof air-permeable bare-concrete-simulation coating

Abstract

The invention discloses a construction technology of a waterproof air-permeable bare-concrete-simulation coating. The technology is characterized by comprising the following steps of (1) base face treatment, wherein after gaps, cracks and sunken parts are subjected to filling-up and ground to be flat, an anti-crank grid fabric is hung on the base face, and then a putty layer is constructed; (2) priming paint construction; (3) construction of a color different adjustment material, wherein a color modification agent B is dipped, flap and knurling are conducted on the base face with completely-dried priming paint, and one-time completion is achieved; then, a color modification agent C is dipped, flap and knurling continue, and two-time completion is achieved; finally, a color modification agent A is dipped, flap and knurling continue, and one-time completion is achieved; (4) finish paint construction; (5) construction of a top facing agent. According to the construction technology, commonconcrete is directly used as a processing base material, modification is conducted on the surface of the common concrete, the production cost is greatly reduced, the defects of the base face are repaired by constructing the putty layer, the whole base face is completely covered with putty and is in an even and uniform state, and accordingly the base material is tightly and reliably combined withthe coating.

Description

technical field [0001] The invention relates to concrete decoration, in particular to a waterproof and air-permeable imitation fair-faced concrete paint construction process. Background technique [0002] Fair-faced concrete is formed by one-time pouring without any external decoration, and directly uses the natural surface effect of concrete as the finish, which can save the traditional plastering, veneering and other whitewashing processes. Unlike ordinary concrete, the surface requirements of clear-water concrete Flat and smooth, uniform color, sharp edges and corners, no damage and pollution. Therefore, fair-faced concrete has extremely high requirements on materials, technology, and formwork, and the cost is 7-8 times that of ordinary concrete. If the ordinary concrete surface can be modified to make the surface reach the material and texture of fair-faced concrete, the cost can be greatly reduced while ensuring the appearance quality. [0003] However, ordinary concr...

AI Technical Summary

Problems solved by technology

This process has the following defects: 1. The original base material is fair-faced concrete, which is expensive; 2. The base surface treatment only fills up larger cracks and defects, and does not fully cover the repair. It is closely combined with the coating; 3. The shrinkage between the repaired part and the base material is inconsistent and cracking is easy to occur; 4. It is difficult to guarantee whether the remaining defects can be repaired during the subsequent primer construction. If the primer is too thick to cover the defects, it will affect the coating. layer quality

Images