The addition of mesh fabrics to new concrete is a practice that has been used for several years in the construction industry. This helps to improve the tensile strength and/or the cracking behaviour of the concrete. Stainless steel mesh fabrics are typically used where the concrete cover to the steel is minimal, or where chloride concentrations are considered to be a threat to the overall structural durability. They also find their use in aesthetic situations eg. where rust spots on the concrete surface are not acceptable. Valbruna manufacture square and structural mesh panels from Reval® reinforcement bar in general accordance with BS 4483 to the following specifications:
Standard Mesh Fabric Types and Size
Mesh Fabris conform to BS 8666: 2000 table 2
| Longitudinal Wire Data | Cross Wire Data | |||||||
|---|---|---|---|---|---|---|---|---|
| Fabric Type | Bar Dia mm |
Pitch mm |
Area mm²/m |
Bar Dia mm |
Pitch mm |
Area mm²/m |
Mass kg/m² |
Wire Overhang |
Square Mesh: |
||||||||
| A393 | 10 | 200 | 393 | 10 | 200 | 393 | 6.28 | 100mm |
| A252 | 8 | 200 | 252 | 8 | 200 | 252 | 4.02 | 100mm |
| A193 | 7 | 200 | 193 | 7 | 200 | 193 | 3.08 | 100mm |
| A142 | 6 | 200 | 142 | 6 | 200 | 142 | 2.26 | 100mm |
| A98 | 5 | 200 | 98 | 5 | 200 | 98 | 1.57 | 100mm |
Structural Mesh: |
||||||||
| B1131 | 12 | 100 | 1131 | 8 | 200 | 252 | 11.06 | 50mm |
| B785 | 10 | 100 | 785 | 8 | 200 | 252 | 8.29 | 50mm |
| B503 | 8 | 100 | 503 | 8 | 200 | 252 | 6.03 | 50mm |
| B385 | 7 | 100 | 385 | 7 | 200 | 193 | 4.62 | 50mm |
| B283 | 6 | 100 | 283 | 7 | 200 | 193 | 3.80 | 50mm |
| B196 | 5 | 100 | 196 | 7 | 200 | 193 | 3.11 | 50mm |
Mass in kg/mm² is based on Grade 1.4436 (316 S33) Stainess Steel Reinforcement Bar
Standard Mesh Panel Size is 4000mm x 2000mm (8m²)
Material Grades And Strengths |
||
|---|---|---|
Standard / Grade |
Bar Strength 0.2% Proof Strength |
|
Euro EN 10088 |
British Standard |
|
| 1.4301 | 304 S31 | 500 N/mm² |
| 1.4436 | 316 S33 | 500 N/mm² |
| 1.4362 | 500 N/mm² | |
