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SP RIB – Construction Joint Mesh Back to products

SPI Equip’s SP-Rib (also called Super-Rib) is a simple, permanent galvanized steel formwork sheet used to form concrete construction joints. SP-Rib can be used for wall joints and slab joints and is designed to save labour and increase construction speed.

SP-Rib is left in the concrete and produces a surface that will bond directly to the next pour. SP-Rib is installed by nailing the sheet to timbers on the form edge in order to create the required concrete cover. The SP-Rib sheet should be supported as per the table below. The reinforcement bars, depending on size, can be pushed through the sheet or if required, simply cut the tabs with tin snips to create a larger hole. Once concrete is poured, use a light brush or wash to remove the excess concrete on the outside of the SP-Rib sheet and it is ready for the next pour.

 

SP-Rib eliminates the timber stop end, so no more cutting plywood to size, drilling holes for the reo, stripping the ply and then scabbling the surface for the next pour.

 

SPI Equip stocks SP-Rib in 0.3mm which is suitable for concrete slab edges and 0.4mm which is suitable for walls and slabs. The table below shows the clear distance between supports when perpendicular to the SP-Rib mesh ribs. Thickness of 0.5mm & 0.6mm are also available by order.

 

NOTES: The site engineer(s) must calculate the actual concrete pressure and design and/ or approve the SP-Rib’s support/ bracing is suitable.

  • Concrete Pour Height
    250mm
    500mm
    750mm
    1000mm
    1250mm
    1500mm
    2000mm
    2500mm
    3000mm
  • Typical Concrete Pressure
    6.3KPa
    12.5KPa
    18.8KPa
    25.0KPa
    31.3KPa
    37.5KPa
    50.0KPa
    62.5KPa
    75KPa
  • Assumed Pressure SP-Rib
    3.2KPa
    6.3KPa
    9.5KPa
    12.7KPa
    15.8KPa
    19.0KPa
    25.3KPa
    31.7KPa
    38.0KPa
  • SP-Rib 0.4mm 90° to ribs
    950mm support spacing
    675mm support spacing
    550mm support spacing
    475mm support spacing
    425mm support spacing
    400mm support spacing
    350mm support spacing
    300mm support spacing
    275mm support spacing
  • SP-Rib 0.3mm
     
    To be used
    on low
    pressure
    applications
    only. Site
    engineer to
    specify support
    spacings