Sichuan concrete crack treatment price although the newly poured concrete has high alkalinity to passivate the reinforcement and form a protective layer, the acid gas in the atmosphere, especially carbon dioxide, will neutralize the alkalinity of the concrete surface every moment, which is called carbonation process. Finally, when the non alkaline carbonation area reaches the reinforcement and destroys its passivation protection layer, oxygen and moisture in the atmosphere will start to rust the reinforcement. When the reinforcement is rusted, its volume will increase greatly. The expansion force will cause the concrete layer to peel off from the reinforcement, resulting in serious damage to the concrete.
In addition, wind force and structural load are also one of the important factors that affect concrete structures such as bridges. Therefore, one of the most effective concrete protection methods is to prevent water intrusion. Concrete crack treatment is due to the outstanding hydrophobicity and durability of silicone resin. In recent years, silicone resin coating has become the most suitable product for concrete protection and has been applied in a wide range of fields, from the protection of fair faced concrete to the protection of ancient buildings. This product is a kind of transparent protective coating for fair faced concrete, which is made of organosilicon resin and advanced technology. It has matte effect and fine texture.
At present, the decorative concrete products are mainly based on the basic requirements of architectural design. Through the re design of the products, the concrete cracks are treated to form a special customized product series. The personalized characteristics are significant, and it is difficult to form a standardized universal product. Because of this, decorative concrete enterprises have unique advantages in product design, mold design and production compared with other cement products enterprises. Due to the low level of product standardization, it is difficult to form a series of equipment system for assembly line operation. Therefore, there are too many manual operations, low level of mechanization, low labor productivity, and equipment lags behind other cement products industries.
Some old objects have a special sense of time, as if they can become more valuable or not be abandoned after the baptism of time. Black and white one has become the most classic contrast color in the industrial wind, but you can make this style more leather and bold to use strong contrast color. As the fair faced concrete itself appears cold in color, so the color tolerance is also very high, so please feel free to use it boldly.
The pure natural fair faced concrete has certain natural defects, no one can guarantee what kind of small defects will appear in the newly poured fair faced concrete. Therefore, the plain faced fair faced concrete has natural defects due to the treatment of concrete cracks. For the development of fair faced concrete in China, fair faced concrete in China has only been used in recent two years, which has opened up the precedent of fair faced concrete in China. The project has made the application of fair faced concrete reach a large volume, and the application of fair faced concrete has been increasing in recent two years.
In case of corner breakage caused by accidental collision or careless formwork removal, the corner shall be trimmed to quadrilateral shape before repairing, and sand slurry shall be used for repairing after watering. Before repairing, the color of the mixture shall be adjusted to make sure that the repaired concrete is the same as the original concrete. The loose concrete shall be removed and the concrete crack shall be treated until the hard concrete is exposed; the four sides shall be trimmed into square shape, and the chiseling depth shall be approximately the same; the part to be repaired shall be watered to make it fully wet; according to the chiseling depth, the sand slurry or fine stone concrete shall be used, and the sand slurry (or fine stone concrete) shall be pressed in; and the water shall be sprayed for curing.
The construction joints shall be set strictly according to the requirements of the design drawings. Before the formwork installation of the construction joints, the concrete cracks in Sichuan must be roughened until the gravel is exposed, the slag shall be removed with clear water, and then wetted with water for 24 hours. Before pouring concrete, the mortar with the thickness of 50mm-60mm and the same mix proportion of the concrete to be poured shall be poured to remove stones, and then the concrete shall be poured to ensure good contact between the new and old concrete. In order to ensure the straight and smooth lines of the new and old concrete joints, the cutting machine must be used at the construction joints before the formwork installation to cut the concrete at the chiseled construction joints into regular straight joints to ensure the straight and smooth lines of the construction joints.