EPH – Collapsible Void Former

The main areas of application for the EPH panel is to create a void beneath slabs and separating ground beams especially in unstable expansive soils that can exert significant pressures on structural foundations.

The EPH voidformer is a honeycomb panel constructed from a 400 micron cardboard with a honeycomb cellular core and is environmentally friendly. The voidformer will break down through the absorption of moisture from the soil and from bacterial attack to create a void beneath the slab or beam

It is capable of taking high load capacity when dry but be aware that ground and atmospheric moisture conditions are critical to the successful use of this product and it must only be used in dry conditions.

It is light weight and easy to install but at the same time is capable of supporting the weight of construction traffic, though it is recommended planks be used in high traffic areas to minimise risk of surface puncture. The EPH Voidformer will retain its strength to also hold the reinforcement and wet concrete until the concrete gains enough sufficient strength to be self supporting

The standard panel size is 2400mm long x 800mm wide and the depth can range from 50mm to 200mm. Each panel is 1.92 square meters. Customised panels are also possible but would require a manufacture time.

Each EPH panel is supplied wrapped in plastic to help with weather protection but is not weather proof and must be stored in a dry place. Tarpaulin covers are recommended and need to be laid to allow adequate ventilation. Minimum ground clearance during storage is 100mm and supports should be run along the length of the panels.

Download the EPH Void Former Brochure
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