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VOID-TEK ground heave solution

Verified by manufacturer 6 months ago

VT150

Premcrete Variant:

An innovative ground heave solution, which is manufactured entirely from polypropylene fluted board which has high strength and durability.

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+44 (0) 23 80276166 Website

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

Pr_25_71_29_15 Collapsible board substructure formworkPrimary

CAWS

E20/182 Collapsible board substructure formwork

E20/45 Collapsible board substructure formwork

Specification data - Collapsible board substructure formwork

Third-party certification

Pending.

Thickness

140mm.

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 guidance

Values 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.

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Sustainability data

Country of product manufacture

United Kingdom