VOID-TEK ground heave solution
Verified by manufacturer 6 months ago
VT50
VT50
An innovative ground heave solution, which is manufactured entirely from polypropylene fluted board which has high strength and durability.
Application
The product is used beneath suspended structural concrete slabs to create a void which allows ground heave to occur without adversely affecting the integrity of the concrete.
It can also be ordered and configured to specific size requirements for use beneath reinforced concrete ground beams and pile caps. SURFACE PREPARATION The sub-base should be well compacted and flat with no excessive surface undulations. Lean mix concrete blinding trowelled to a smooth finish provides a perfect substrate.
Description
VOID-TEK is a collapsible void former which is used to protect concrete structures from the effects of ground heave, typically associated with clay soils. It is supplied in a thickness which is suited to accommodate the plasticity range as identified.
The product consists of folding polypropylene sections which are bonded together to produce a robust structure which can withstand a load implied by up to 900 mm thickness of concrete. Its unique structure means that it arrives on site just 31 mm thick and is deployed in seconds to produce the required Void former. When the product collapses due to the upward pressure caused by ground heave, the sheet will compress to a thickness of just 31 mm creating the required void.
General information
Color | Red White |
Finish | Other |
Material | Polypropylene |
Shape | Rectangle |
Length | 2550 mm |
Width | 1200 mm |
Height | 190 mm 140 mm 78 mm |
Uniclass | |
CAWS | E20/182 Collapsible board substructure formwork E20/45 Collapsible board substructure formwork |
Specification data - Collapsible board substructure formwork
Third-party certification | Pending. |
Thickness | 78 mm. |
Loadbearing capacity | 7 kN/m².9 kN/m².14 kN/m².18 kN/m².24 kN/m².32 kN/m².40 kN/m².50 kN/m².Manufacturer guidanceValues are for safe load. Deflection under load and deflection under point load: <5 mm. |
Ancillaries | VOID-TEK Tape 50 mm x 50 m. VOID-TEK Central Fin 10 Pack. VOID-TEK Interlock Fin. VOID-TEK Pile Collar. VOID-TEK Vertical Void Former. |
Sustainability data
Country of product manufacture | United Kingdom |