Reinforcing Mesh

Many pieces of reinforcing mesh sheets neatly stack together.

RM-01: Reinforcing mesh sheets

Reinforcing Mesh is used for the reinforcement of concrete, is manufactured to SANS 1024:2006 and to other international standard specifications.

Features:

  • Reinforcing Mesh mats are the most commonly used form of prefabricated reinforcement and is particularly suitable for flat slab construction and concrete surface beds. Other designed applications include:
    • Retaining and shear walls;
    • Beams and columns;
    • Concrete paving overlays;
    • Precast concrete elements;
    • Buildings project;
    • Swimming pool and gunite construction.
  • Reinforcing Mesh mats can be detailed as either flat or bent sheets, depending on the job requirements.
  • Reinforcing Mesh reinforcement considerably reduces construction time.
  • SANS 1024:2006 designated fabric mats are standard welded reinforcement mats and can be scheduled simply by reference to the fabric type, sheet dimensions and bending shape codes (The reference is the nominal mass of the fabric in kg/m2 × 100).
  • The cold-rolled deformed wire used in welded mesh fabric has a characteristic strength (0.2% proof stress) a minimum of 485 MPa compared to 450 MPa for high tensile rebar. Fabric may be used at higher stresses than high tensile rebar resulting in a material saving of up to 8%.

Important design criteria

Many pieces of reinforcing mesh in rolls, and a person is measuring the diameter.

RM-02: Reinforcing mesh in rolls

Placing of Fabric

In order to obtain the best results when using fabric reinforcement, special care must be taken to ensure that the mesh is positioned and maintained at the correct depth after the concrete pour. This can be done by using stools or plastic or concrete spacers. Another option is to place the fabric on poured concrete that has been leveled to the desired reinforcement depth. After placing the mesh the concrete can be topped up to the specified overall slab thickness.

Ideally fabric must be located 50 mm from the top of the slab and where bottom steel is required, it must also be supported 50 mm above the substrate.

Precast reinforcing mesh used in the foundation of a building.

RM-03: Precast reinforcing mesh in a foundation

Lapping of Fabric Mats

It is recommended that in calculating the lap requirement for surface bed welded mesh fabric reinforcement that the formula shall be 25 × diameter + 150 mm or 300 mm, whichever is the greatest.

Quality

The Reinforcing Mesh is manufactured under strict quality controls with all standards conforming to SANS 1024:2006 standard specifications and tolerances and carries the certification mark.

Many sheets of galvanized reinforcing mesh with square holes.

RM-04: Galvanized reinforcing mesh.

Many sheets of indented reinforcing mesh with square holes.

RM-05: Reinforcing mesh with uniform square holes.

A stack of reinforcing mesh is packed with metal belt in workshop.

RM-06: Reinforcing mesh is packed with metal belt.

Four stacks of reinforcing mesh and each two stacks is divided by three woods.

RM-07: Reinforcing mesh is placed on wooden pallet in workshop.

Table 1: Reinforcing Mesh Specifications
Products Fabric Mesh Size Nominal Pitch of Wire Wire Sizes Cross Sectional area/m width Nominal mass/m2 Package
Ref No. Main mm Cross mm Main mm Cross mm Main mm Cross mm Kg Supplied in
Square Mesh Fabric 888 200 200 12 12 566 566 8.88 sheets only
6 m × 2.4 m
746 200 200 11 11 475 475 7.46
617 200 200 10 10 393 393 6.17
500 200 200 9 9 318 318 5.00
395 200 200 8 8 251 251 3.95
311 200 200 7.1 7.1 198 198 3.11
245 200 200 6.3 6.3 156 156 2.45
193 200 200 5.6 5.6 123 123 1.93 sheets or rolls
100 200 200 4 4 63 63 1.00
Design Mesh Fabric 1085 100 200 12 8 1131 251 10.85 sheets only
6 m × 2.4 m
943 100 200 11 8 951 251 9.43
772 100 200 10 7.1 786 198 7.72
655 100 200 9 7.1 636 198 6.55
517 100 200 8 6.3 503 156 5.17
433 100 200 7.1 6.3 396 156 4.33
341 100 200 6.3 5.6 312 123 3.41
289 100 200 5.6 5.6 246 123 2.89
Longitudinal Mesh Fabric 278 100 300 6.3 4 312 42 2.78 sheets only
6 m × 2.4 m
226 100 300 5.6 4 246 42 2.26
133 100 300 4 4 126 42 1.33 sheets or rolls
60 m × 2.4 m
Special Mesh 200 100 100 4 4 126 126 2.00
156 100 100 3.55 3.55 99 99 1.56
Table 2: Structural fabric reinforcement design data
DIA
mm
Area
mm2
Mass
kg/m
Wire Spacing mm
50 75 100 125 150 175 200 225 250 275 300 DIA
12 113.11   2262 1508 1131 905 754 646 566 503 452 411 377 12
  0.888 17.76 11.84 8.88 7.1 5.92 5.07 4.44 3.95 3.55 3.23 2.96
11 95.05   1901 1267 950 760 634 583 475 422 380 346 317 11
  0.746 14.92 9.95 7.46 5.97 4.97 4.26 3.73 3.32 2.98 2.71 2.49
10 78.55   1571 1047 786 628 524 449 393 349 314 286 262 10
  0.617 12.34 8.23 6.17 4.94 4.11 3.53 3.09 2.74 2.47 2.24 2.06
9 63.63   1273 848 636 509 424 364 318 283 255 231 212 9
  0.500 9.99 6.67 4.99 3.99 3.33 2.86 2.5 2.22 2.00 1.82 1.67
8 50.27   1005 670 503 402 335 287 251 223 201 183 168 8
  0.395 7.9 5.27 3.95 3.16 2.63 2.26 1.98 1.76 1.58 1.44 1.32
7.1 39.6   792 528 396 317 264 226 198 176 158 144 132 7.1
  0.311 6.22 4.15 3.11 2.49 2.07 1.78 1.56 1.38 1.24 1.13 1.04
6.3 31.18   624 416 312 249 208 178 156 139 125 113 104 6.3
  0.245 4.9 3.27 2.45 1.96 1.63 1.40 1.23 1.09 0.98 0.89 0.82
5.6 24.63   493 328 246 197 164 141 123 109 99 90 82 5.6
  0.193 3.86 2.57 1.93 1.54 1.29 1.11 0.97 0.86 0.78 0.71 0.64
4 12.57   251 168 126 101 84 72 63 56 50 46 42 4
  0.099 1.98 1.33 1 0.8 0.67 0.57 0.5 0.44 0.4 0.36 0.33

Hot products list:

  • Welded wire mesh rolls for reinforcing concrete, floors, and roads, slabs.
    • 2.1 m × 30 m × wire diameter 4.0 mm (mesh 200 mm × 200 mm) wt/roll 63.7 kg + 1.5%.
    • 2.1 m × 30 m × wire diameter 5.0 mm (mesh 200 mm × 200 mm) wt/roll 95.0 kg + 1.5%.
  • Soft annealed black binding wire for civil construction, 0.16–0.6 mm wire, 25 kg/roll.