Overview
Welded rebar mesh manufactured from CRB550 cold-rolled ribbed steel or HRB400E hot-rolled ribbed steel, compliant with GB/T 1499.3-2022 and JGJ 114-2014, delivers uniform load transfer, high shear resistance at welded joints, and improved concrete bond strength due to deformed transverse ribs. This product is available with black surface for embedded concrete use or hot-dip galvanized finish for outdoor corrosion protection.
Technical Specifications
|
Wire Diameter (mm) |
Mesh Opening (mm) |
Standard Sheet Size (m) |
Typical Application |
|
3.0, 4.0 |
50×50, 100×100 |
1×2, 1×3, 2×3 |
Underfloor heating, plastering, roof insulation, lightweight partition reinforcement |
|
5.0, 6.0 |
100×100, 150×150, 200×200 |
2×3, 2×4, 1.5×3 |
Slab pouring, floor crack control, wall reinforcement, general foundation protection |
|
8.0, 10.0 |
100×100, 150×150, 200×200 |
2×4, 3×6 |
Heavy-duty flooring, bridge deck overlay, tunnel lining, subgrade reinforcement |
|
12.0, 14.0, 16.0 |
100×100, 150×150 |
3×6, 2.4×6 |
High-speed pavement, large infrastructure, heavy industrial floors, special load-bearing structures |
Supplementary Notes
- Standard widths: 1.0 m, 1.2 m, 1.5 m, 2.0 m, 2.4 m; lengths: 2.0 m, 3.0 m, 4.0 m, 6.0 m (custom cutting available).
- For crack control applications, 100×100 mm or 150×150 mm openings are recommended. For large-span structures, 200×200 mm may be used.
- Manufacturing process: resistance spot welding, ensuring firm joints without missing or loose welds.
Product Advantages
Higher design strength
This mesh achieves design strength 50–70% higher than Grade I plain round bars, enabling approximately 30% reduction in steel consumption for equivalent structural performance.
Labor efficiency
Installation of 10–15 m² of welded mesh requires 60 labor-hours, compared to 130 labor-hours for manual tying, representing a 54% reduction in on-site labor.
Elimination of on-site quality issues
Factory automation ensures precise bar spacing and count, preventing displacement, missing ties, and insufficient concrete cover thickness commonly observed in manual placement.
Crack control
The combination of deformed ribs and welded grid structure improves concrete grip and shear transfer, effectively reducing crack formation in hardened concrete.
Applications
- Residential and commercial floor slabs
- Bridge deck overlays and tunnel linings
- Heavy-duty industrial floors and pavements
- Wall reinforcement and plaster mesh
- Foundation protection and subgrade stabilization
- High-speed road pavement and large-scale infrastructure projects
Frequently Asked Questions
Q1: What steel grades are available for welded rebar mesh?
A1: The most common grades are CRB550 cold-rolled ribbed steel bar and HRB400E hot-rolled ribbed steel bar, both conforming to GB/T 1499.3-2022.
Q2: Can the mesh be produced in non-standard sizes?
A2: Yes. While standard widths range from 1.0 m to 2.4 m and lengths from 2.0 m to 6.0 m, custom cutting and non-standard dimensions are available upon request.
Q3: How does the cost of welded rebar mesh compare to traditional loose rebar?
A3: Considering both material savings (approximately 30% less steel) and reduced on-site labor (over 50% fewer labor-hours), this mesh typically lowers overall reinforcement cost by about 10% compared to Grade I plain round bars, excluding fabrication charges for bars under 12 mm diameter which normally add 10–15% to material cost.
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