Concrete Reinforcing mesh

Concrete reinforcing mesh is an important material in nowadays construction, it plays an important role in strengthen and stabilize concrete structures. Wholly’s reinforcing mesh is manufactured according to GB/T 1499.3,ISO 10544 and other international standard specifications.

Materials for Concrete Reinforcing Mesh

Based on materials, reinforcing mesh can be categorized as:

1.Cold-Rolled Ribbed Steel Mesh

Cold-rolled ribbed steel mesh is made by cold-rolling steel that have ribbed patterns.

 It will enhance the bond between the steel and concrete.

The ribbing provides increased surface area and better grip in the concrete, making it highly effective for reinforcement purposes.

Features:

By strengthening the mechanical bond with the concrete,the ribbed surface reduces the possibility of sliding under load.

The cold-rolling method gives the steel a more consistent finish and retains its strength and stability.

Higher tensile strength compared to smooth steel mesh.

Applications of cold rolled steel mesh

Concrete slabs:  floors, foundations, and pavements.

Construction of walls and beams: Applied in buildings where need high-strength reinforcement.

Heavy-duty structures: Bridges, tunnels, and industrial floors

Roads and highways: construction of roads and other large-scale infrastructure projects.

2.Cold-Drawn Smooth Steel Mesh

Steel wires are straight and smooth.

Since it does not have the rough surface, the bond with concrete is typically weaker than ribbed wire mesh.

Features:

The smooth surface reduces friction between the concrete and the mesh, which may result to a weaker mechanical connection.

Cold-drawing improves consistency and accuracy while increasing the wire’s tensile strength.

Simpler to handle and more flexible than ribbed steel mesh.

Applications:

Light-duty reinforcement: general reinforcement where the load requirements are not as high.

Concrete slabs: For lighter constructions ,like residential floors and sidewalks.

Fencing: Because of its smooth surface, used in non-structural purposes like fencing and security mesh.

Precast concrete:  blocks, pavers, and panels that do not require high tensile strength.

3.Hot-Rolled Ribbed Steel Mesh

Steel is passed through rollers at high temperatures to create hot-rolled ribbed steel mesh, to shape the ribbed patterns on the steel bars.

 By improving the steel’s strength and hardness, this technique qualifies it for more demanding structural uses.

Features:

The rough surface of the steel strengthens the mechanical bond with concrete, particularly in situations with heavy loads.

In high-stress situations, hot-rolled steel is appropriate because it is typically more resilient than cold-rolled steels.

Compared to cold-rolled mesh, hot-rolled ribbed mesh usually has a higher yield and tensile strength.

Applications:

High-strength concrete reinforcement: large-scale infrastructure projects :bridges, dams, and highways.

Industrial floors: Suitable for factory floors or warehouses that require heavy weight-bearing capacity.

Foundations: deep foundations, piling.

Heavy civil engineering: striction projects that involve heavy loads, seismic activity, or harsh environments.

Types of reinforcing mesh

Square mesh, rectangular mesh, and trench mesh are the three primary categories of reinforcing mesh.

Square Mesh

Rectangular mesh

Trench mesh

 This type of reinforcement can be used to reinforce concrete longitudinally since it comes in a wide range of widths, long wire and cross wire diameters, and spacing specifications.
It is specifically developed for applications requiring load distribution and longitudinal strength, such as footings and slabs.
Effective distribution of loads: Trench mesh is excellent at distributing loads uniformly, which lowers the possibility of cracks or structural failures.
Labor-saving: Because of its design, less cutting or shaping is required during installation, which improves efficiency.

Advantages of concrete reinforcing mesh

Great stability and strength.
Enhance concrete bonding and reduce concrete cracking.
Flat even surface and firm structure.
Rust and corrosion resistant.
Durable and long service life.

Concrete reinforcing mesh size chart

BS44B3 BRITISH STANDARD (BRC welded wire mesh)

NO	Stand unit	Longitudinal Wires (mm)	Cross Wires (mm)	Pitch of wire (mm)	No.of sheet per ton	Mass kg/M2
A393	sheet	10	10	200@200	15	6.16
A252	sheet	8	8	200@200	22	3.95
A193	sheet	7	7	200@200	29	3.02
A142	sheet	6	6	200@200	40	2.22
A98	sheet	5	5	200@200	57	1.54

AS/NZ 4671:2001 Australia/New Zealand Standard Reinforcing Mesh

Ref No.	Stand Unit	Longitudial Wires (mm)	Edge Wires (mm)	Cross Wires (mm)	Mass (Kg)
SL81(F81)	Sheet	7.6@100	7.60@100	7.60@100	105
SL102(F102)	Sheet	9.5@200	6.75@100	9.50@200	80
SL92(F92)	Sheet	8.6@200	6@100	8.60@200	66
SL82(F82)	Sheet	7.6@200	5.37@100	7.60@200	52
SL72(F72)	Sheet	6.75@200	4.77@100	6.75@200	41
SL62(F62)	Sheet	6@200	4.77@100	6@200	33
SL52(F52)	Sheet	4.77@200	4.77@100	4.77@200	21

BRC 65	BRC 66	BRC 610
Height	2000mm	2000mm	2000mm
Length	20000mm	20000mm	20000mm
Diameter	3mm	2.5mm	2.0mm
Wire Spacing	3’’ – 9’’	3’’ – 9’’	3’’ – 9’’
Material	Low Carbon Mild Steel Wire

Applications of Concrete Reinforcing Mesh

• Reinforcement of concrete structures in building.
• Reinforcement of road surfaces.
• Reinforcement of masonry walls.
• Manufacture of various fences.
• Used as large animal enclosure, quarantine caging or gabion.