What are the standards for steel mesh?

Reinforcing mesh standards are characterized by high product precision, small errors, and good quality. Welded reinforcing mesh is a welded mesh product consisting of longitudinal and transverse reinforcing bars arranged at specific intervals and perpendicular to each other, with all intersections welded together using strong resistance pressure welding. Applications: Reinforcing mesh is mainly used for coal mine roadway protection and reinforcement, concrete pavement, bridge deck paving, airport runways, tunnel lining, building floors, roofs, walls, slabs, concrete pipes, and piles.
Advantages of Reinforcing Mesh: 1. Ensuring Project Quality: Welded reinforcing mesh is manufactured in a factory under strict quality control using a fully automated, intelligent production line. Mesh size, reinforcing bar specifications, and quality are strictly controlled. This avoids omissions, weak tying, errors, and shoddy workmanship that can occur with manual tying. The mesh has high rigidity, good stability, uniform and accurate spacing, and high weld strength, thus greatly improving project quality.
2. Improved Seismic and Crack Resistance: The longitudinal and transverse bars of welded wire mesh form a mesh structure, resulting in good bonding and anchorage with concrete. This allows for even load distribution, significantly improving the seismic and crack resistance of reinforced concrete structures. Actual tests show that laying welded wire mesh in roads reduces cracking by more than 75% compared to manually tied mesh.
3. Reduced Steel Reinforcement: The design strength of widely used coiled steel bars is 210 N/mm², while the design strength of welded wire mesh is [insert value here]. Based on the principle of equivalent strength replacement and considering other factors, using welded wire mesh can save more than 30% of steel reinforcement. Furthermore, the mesh is processed on-site, eliminating waste.
4. Faster Construction: Using welded wire mesh speeds up construction. Concrete can be poured immediately after the mesh is laid as required, eliminating the need for on-site cutting, placement, and tying of steel bars. This saves 50%-70% of labor time, greatly accelerating construction and shortening the construction cycle. Welded wire mesh offers significant overall economic benefits. The design strength of welded wire mesh reinforcement is 50% to 70% higher than that of I-beam reinforcement (for smooth welded wire mesh, and also for fence welded wire mesh). Even after considering structural requirements, it can still save approximately 30% of the steel reinforcement. Furthermore, the processing cost of loose reinforcement bars with a diameter of less than 12mm is approximately 10% to 15% of the material cost. Considering all factors (compared to I-beam reinforcement), it can reduce the cost of steel reinforcement projects by approximately 1%.