What is a void Former?

Void Former is a lightweight material in structural concrete in foundations, beam and slabs to fill structurally non-working areas and against clay heave. They are strong enough to support the weight of wet concrete as well as steel reinforcements. They come in either full form or in honeycombed form.

What is void Former in construction?

The function of a void former is to separate concrete slabs from reactive soil which can potentially exert damaging pressure on the structural foundations of a dwelling. Architects came up with two solutions to fill in the voids. One solution was to use a void former which could be removed when the building took shape.

What is polystyrene void former?

Polystyrene is inexpensive, versatile and easy to use. Void Formers are used to fill in empty areas beneath a ground concrete slab pour to reduce the volume of concrete required whilst maintaining the overall strength of the slab. They are also used to create void areas where conventional formed areas are not possible.

Why use void Formers?

Filcor (Expanded Polystyrene) is commonly used as a lightweight material for forming openings and voids within concrete structures. The use of Filcor void formers reduces the weight of the structure when left in-situ or alternatively can be used for temporary applications as part of a formwork system.

What is clay board?

Clayboard® Residential is a unique, environmentally friendly void former and foundation system to protect against clay heave and ground movement. Clayboard® has a 100% recycled and biodegradable paper honeycomb core set between lightweight polypropylene facings which have up to 70% recycled material content.

What is Geofoam fill?

Geofoam – Structural Insulation InsulFoam® GF (EPS Geofoam) is a lightweight, geo-synthetic fill material used as an alternative to various fill-materials, as a soil stabilizer, and in various engineered applications. InsulFoam® GF is environmentally friendly and 100% recyclable, containing no HCFCs or formaldehyde.

What is waffle pod slab?

WHAT ARE WAFFLE PODS? This is where the concrete is sitting on (and around) a series of boxes (or Pods) set out in a grid pattern. Think of a waffle pod as a raft lying flat above your soil.

What is expanded polystyrene?

EPS is a rigid, closed cell, thermoplastic foam material. It is produced from solid beads of polystyrene. Expansion is achieved by virtue of small amounts of gas contained within the polystyrene bead. The gas expands when heat in the form of steam is applied, thus forming closed cells of EPS.

What are clay boards used for?

What does clay master do?

Jablite Claymaster (Clay Heave Protection) is a product that provides protection against clay heave. Jablite Claymaster works by surrounding the pile cap with a layer of low density, compressible, expanded polystyrene, reducing pressure on the ground beams as the surrounding clay expands and contracts.

How strong is geofoam?

Despite its light weight, geofoam is remarkably strong. It can be produced with strengths up to 2,678 pounds per square foot, and as long as the combined dead/live load does not exceed one percent strain, EPS geofoam will never creep or experience plastic yield.

What kind of material is used for void formers?

What kind of clayboard is a void former?

160mm Dufaylite Residential Clayboard Void Former is a specially designed board consisting of a lightweight, eco-friendly and biodegradable core covered with polypropylene facings.

What’s the difference between void former and void filler?

Void formers decrease the volume of concrete, reducing weight while increasing the strength of concrete. Void fillers are designed to fill a void with Expanded Polystyrene and are left in-situ.

When to use void formers in a formwork system?

The use of Filcor EPS void formers reduces the weight of the structure when left in-situ or alternatively can be used for temporary applications as part of a formwork system.

What is a void Former? Void Former is a lightweight material in structural concrete in foundations, beam and slabs to fill structurally non-working areas and against clay heave. They are strong enough to support the weight of wet concrete as well as steel reinforcements. They come in either full form or in honeycombed form. What…