Pecavoid CS Substructure Formwork

Foundations can be affected by ground movement caused by volumetric changes in the swelling expandable soils, which is generally caused by the variations and fluctuations in moisture levels of the soil. Changes in weather and the removal of vegetation also often affect ground moisture levels of the soil.

Pecavoid is a BBA approved cellular void former, designed to combat the effects of ground heave on suspended piled foundations and suspended slabs. Widely used in the construction of industrial, commercial and residential buildings, Pecavoid is independently tested, meets NHBC and other major warranty schemes for residential housing developments with their technical requirements and is certified by the British Board of Agrément.

Pecavoid significantly reduces uplift pressure caused by the expanding clay on suspended structural elements (suspended rafts, pile caps, ground beams and slabs). It is designed to compress when ground heave takes place and is manufactured from interlocking sections of light weight expanded polystyrene and is easy to install.

Benefits:

• Reduces uplift pressure, protecting buildings and foundations.

• Easy to install and achieves the required void.

• Fully compatible with Pecafil® permanent formwork.

• Does not degrade or contain CFCs or HCFCs.

• Pecavoid® materials are produced in an ISO 9001: 2008 approved factory.

• Pecavoid can also be supplied with a topping that increases the thermal performance of the building.