Products
Our products include corrugated recycled cardboard partition type panels, FormaVoid®, Expanded Polystyrene panels and Waffle pods.
Void form creates a space between concrete structures and expansive soils, thereby isolating the concrete from reactive soil, ground movement, mine subsidence, noise and vibration affected sites. BildaVoid products provide a temporary support platform for concrete placement until the structural slab sets and can support itself across drilled piers, pads, intermittent footings or other supporting concrete work.
The BildaVoid material, placed under structural concrete, gradually absorbs ground moisture and loses its strength and subsequently disperses after the concrete has set, creating a space into which soil can expand without causing damage to a building. BildaVoid Concrete Void Forming Systems can also be used to displace concrete volume where reduction in weight or cost is a consideration.
Click on links below for product details:
Product Application - the geology of Reactive Soils
Geological data of Australian soils shows that certain areas can be classified as being unsuitable to sustain loading from heavy structures. Structural fractures can occur though ground swell of certain clays or the subsequent settling of reclaimed areas when positive loadings are imposed.
A wide study of these soils has shown many areas in Australia, particularly in the eastern states and South Australia, are unsuitable and recommends that care be taken when designing structures to allow for movement both negative and lateral.
Placed under beams and side by side under ground slabs, BildaVoid Concrete Voidforming Systems are left in place to deteriorate through moisture or soil bacteria action. The rate of deterioration is determined by seasonal conditions. It is estimated that the time required for swelling pressures (from a rise in capillary water) to cause damage is generally a minimum of six months or longer.
|
