What is a void former?

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 Filcor?

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 a void form under grade beam?

DYNAFLEX Void Form is an expanded polystyrene (EPS) product designed to protect grade beams, pile caps and other concrete structures from the forces of subgrade up-lift or the swelling of clay soils.

What is void former made of?

KORE’s Void Formers and Void Fillers are structures made of Expanded Polystyrene (EPS), which is a light weight material that has substantial weight bearing load capacity. Void formers decrease the volume of concrete, reducing weight while increasing the strength.

What is Jablite insulation?

Jablite is the UK’s largest producer of EPS products for insulation and civil engineering. External Wall Insulation. A cost effective alternative to demolishing and rebuilding. Installing insulation on the external walls of a domestic or non-domestic property is a cost effective alternative to demolishing and …

What is void form made of?

Composition and Care SlabVoid® products are manufactured from corrugated paper. They have a moisture-resistant exterior, which provides some resistance to initial moisture penetration.

Can void forms get wet?

Keeping the Carton Void Forms Dry They must be stored in a manner that will prevent them from becoming wet. The use of a dry storage trailer or watertight container on the jobsite is highly recommended. Carton void forms that inadvertently become wet should be replaced.

Is void former insulation?

KORE Void Formers are made from Expanded Polystyrene (EPS), the same high performance material used for our extensive range of insulation solutions. Made from 98% air KORE EPS is lightweight, versatile, water and moisture resistant, rot-proof and will not degrade over time.

How do you install a Claymaster board?

Claymaster boards are laid in the bottom of the trench, ensuring that the full width of the trench is lined and that the boards are butted tightly together. Where concrete piles protrude into the trench, the Claymaster boards should be neatly cut to fit, or factory-cut sections should be used.

Can I use Jablite as wall insulation?

Jablite external wall insulation is an easy-to-install insulation that will perform for the lifetime of the building. It is compatible with all external wall systems and can be bonded or mechanically fixed to the wall.

Is Jablite OK for floor insulation?

4.1 Jablite Floor Insulation 70 is satisfactory for use as floor insulation and is effective in reducing the thermal transmittance (U value) of ground-bearing or suspended concrete ground-floors in new and existing domestic or similar buildings.

Does polystyrene dissolve in water?

However, they are not biodegradable. Styrofoam is readily soluble in acetone, but is not soluble in water.

How does void former work?

Description. Cardboard void former is a honeycomb cardboard sheet designed to support the weight of wet concrete and then break down over time to form a void under the concrete. The void created reduces the risk of reactive soils impacting the slab or causing damage to the structure in the future.

How thick is void form?

The depth of void forms under foundations ranges from 5 cm to around 60 cm based on the underlying soil’s potential for upward movement. Furthermore, several types of void forms are available to use, like degradable void form, non-degradable void form, collapsible void form, and non-collapsible void form.

Can Claymaster be used as insulation?

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….Jablite Claymaster insulation is supplied: