Welded steel mesh is a kind of construction mesh. Use a special mesh welding machine to weld longitudinal and transverse steel bars of the same or different diameters by resistance spot welding (low voltage, high current, short welding touch time) to form mesh steel bar products.

The longitudinal reinforcement and transverse reinforcement are placed at a certain distance and at right angles to each other, and all the intersection points are welded together by resistance spot welding. With a relatively dense steel bar spacing, the longitudinal bars and transverse bars of the welded mesh form a mesh structure to jointly play the role of bonding and anchoring, which is beneficial to prevent the occurrence and development of concrete cracks. Crack about 75%.

Reinforcing welded mesh

Welded steel mesh is used in beams, columns, floors, roofs, walls, floors, concrete pavements, bridge decks, airport runways, tunnel linings, concrete pipes, piles, etc.

Advantages of welded steel mesh

1.     Compared with the traditional technology of binding steel bars, the welded steel mesh has the advantages of high rigidity, good elasticity and uniform distance.

2.     When pouring concrete, the steel bar is not easy to be partially stepped on, and the thickness of the concrete protective layer is easy to control and uniform. In the bridge deck pavement, the qualified rate of the measured welded mesh protective layer is over 95%.

3.     The selection of welded mesh greatly reduces the on-site installation time and saves the steel bar processing site. In the case of the same amount of reinforcement, the use of steel mesh can save about 50% to 70% of the time compared to manual binding.

4.     The intersections bound by artificial steel wires are easy to slide, and the bonding force between steel bars and concrete is weak, which is prone to cracks, while the welded joints of welded mesh can not only withstand pressure, but also shear force.

5.     The vertical and horizontal steel bars form a mesh structure together to play the bonding and anchoring effect. When the welded mesh steel bar is selected with a smaller diameter and a denser distance, because of the increase of welding points per unit area, it is more conducive to enhancing the crack resistance of concrete, which can reduce 75% % or more cracking onset.

6.     The selection of welded mesh saves a lot of on-site binding labor and construction site, enables civilized construction, and significantly improves the quality of steel reinforcement projects. Because the welded mesh is prefabricated in the factory in advance, there is no need for reprocessing on site, and there is no waste steel bar, because the construction period is shortened. , and then reduce the cost of hoisting machinery, etc.

7.     Compared with the use of grade I steel bars, the design strength of ribbed steel mesh is about 70% higher than that of grade I steel bars. After considering some structural requirements, it can still save more than 25% of steel.