What factors affect the quality of concrete?

1. Is the quality of raw materials; 2. Is the construction quality; 3. It is the maintenance condition. The concrete quality shall be guaranteed from the above three aspects in the mix proportion construction of cement precast slab.

2. The quality of raw materials shall be strictly controlled for the cement precast cover plate. The mobilized materials shall be tested and can be used only after they are qualified;

3. The concrete cover plate shall strictly control the concrete ratio, ensure the mixing time, ensure that the concrete is not broken during transportation, ensure that the concrete is at the proper height when entering the formwork, and ensure that the concrete vibration is in place and the time is sufficient; 3. The concrete cover plate must be well cured.

The characteristics and production standards of the cement precast cover plate, the concrete cover plate, the cement concrete cover plate, the wall surface, the bridge pier column, etc. are not strong enough. It is a new composite material with a unique formula of one component water-based agricultural production system, which can effectively penetrate the concrete surface 1 - 20 mm. A series of complex chemical reactions occur between the cement precast cover plate and the free substances in the concrete cement cover plate, forming a three-dimensional network densifying whole, thus greatly improving the surface strength of the concrete, hardening the ground, preventing sand The effect of dusting is good and effective, the service life is the same as that of the precast concrete cover plate, and the construction is simple. The precast cement cover plate only needs to be painted on the concrete surface.