The structure is afraid of water leakage, because the water seepage will cause the concrete to loosen, fall off, and the steel is corroded. One of the reasons for the water seepage is that the treatment of the concrete surface layer does not completely remove the surface residual material, and does not retain a certain rough surface to ensure waterproof. The bond strength of the layer and the structural layer. The shot blasting process can clean the floating surface and impurities of the concrete surface at one time, and at the same time, the surface of the concrete is roughened to make the surface uniform and rough, which greatly improves the bonding strength of the waterproof layer and the concrete base layer. Moreover, in the process, the cracks of the concrete and the like can be sufficiently exposed, so that remedial measures can be taken in advance. Therefore, when pushing the system, under the condition of condition, the blasting treatment base surface can better ensure the waterproof effect.

The details that need to be paid attention to during shot blasting construction are: where the structural plate is uneven, the thicker polymer mortar should be ground or thickened, and the mortar strength should meet the requirements. The area where the water venting hole, pipe sputum, yin and yang angle and other shot blasting machines cannot be cleaned should be cleaned and polished with an angle grinder, and care should be taken not to produce grinding grooves.

If the construction is large, the efficiency of shot blasting is very high. The concrete surface, concrete residue, sputum, oil stain, pollution, etc., which are handed over from the package, are manually cleaned, very labor-intensive, and not clean, and the shot blasting machine is used. Can solve problems quickly and efficiently