Rib & Block Slabs

A SuperSlab consists of a composite suspended concrete slab system comprising prestressed concrete ribs and hollow concrete blocks. Our SuperSlabs offer finished slab depths of:

  • Slab depth 170mm
  • Slab depth 200mm
  • Slab depth 255mm
  • Slab depth 300mm
  • Slab depth 340mm

and span up to a maximum of 10,000mm. Installation is quick, simple and cost effective.

Our SuperSlabs are designed to suit residential, commercial and industrial developments such as:


  • Townhouses, cluster homes and flats


  • Multiple story urban living centers


  • Office blocks


  • Schools


  • Hotels and hostels


  • Shopping centers


  • Factories and warehouses


  • suspended ground floors


SuperSlab installation requires no mechanical aids and is manually installed using non-skilled labor. Slabs can be erected at rate of up to 500m² per day:


  • Lightweight structure


  • Fast, flexible and cost effective


  • Minimal site access required


  • SuperSlabs are packed systematically according to layout drawings provided


  • After slabs have been leveled insert stiffener rib reinforcing steel as indicated. Place anti-crack weld mesh (if required) and electrical conduits prior to pouring of structural concrete topping


  • 25 MPa structural concrete topping to be poured in situ over precast components. Vibrate concrete and level to finish


  • Temporary propping to be removed when concrete reaches crushing strength of 17 MPa (or according to supervising engineers instructions)


  • No concrete to be poured in situ until inspected by a Super Slabs engineer


SuperSlabs offer versatility for:


  • Irregular shapes and downlighters


  • Skylights and apertures


  • Cantilevers and curved ceilings


  • Extensions of existing slabs


  • Special architectural features


Our success depends on your satisfaction through the following services we offer:


  • Dedicated professional teams focused on delivering tailor-made solutions


  • Engineering reports and slab cost estimates


  • Economical structural slab design and engineering certification


  • Full engineering designs of foundations, columns, retaining walls and staircases.


  • Dedicated construction division for installation and concreting of our SuperSlabs (if required)


  • Prompt and personal attention to all inquiries and orders