155mm Cellcore HX B Under Beam EPS Concrete Ground Beams is specifically engineered to be employed beneath reinforced concrete ground beams and pile caps, serving as a safeguard against the potential consequences of ground heave. This product is comprised of an intricately crafted cellular structure made from 155mm Expanded Polystyrene, meticulously designed, molded, and rigorously tested to meet precise tolerances and achieve the desired performance attributes.
Brand: Cordek®
Thickness: 155mm
Length: 2400mm
Width: 1200mm
Model: 155mm (Grade 24/32)
Dimensions: 2,400mm x 1,200mm x 155mm
Board Coverage: 2.88m2
Grade: 24/32
Maximum depth of concrete: 900mm
Material: (EPS Insulation) Expanded Polystyrene
Shipping method: Rigid Vehicle ǀ Courier
Applications: Ground Beams and Pile Caps / Underfloor Insulation
BBA Certified: Yes
Features: Protection against effects of ground heave
Safe load: 24 kN/m2
Plasticity Index: 20-40
Fail load: 32 kN/m2
Void Dimension (mm): 100mm
Shrinkage Category: Low
Manufacturer: Cordek Cellcore HXB
The standard product line offers a diverse selection of depths and grades, catering to the typical combinations of soil heave risk and concrete depth commonly encountered. Additionally, customized product variants are accessible for applications beneath floor slabs or in scenarios necessitating permanent formwork.
The 155mm Cellcore HX B Under Beam series is engineered to shield reinforced concrete ground beams and pile caps from the upward pressures linked to ground heave effects.

Each 155mm Cellcore HX B grade is engineered to accommodate a specific concrete thickness, along with a live load allowance of 1.5 kN/m2, while experiencing minimal creep compression during a 16-hour curing phase. This is referred to as the "SAFE LOAD."
Upon reaching the predetermined load, the polystyrene legs of the Cordek panels will yield and collapse due to the upward ground movement, a condition known as the "FAIL LOAD."
In the structural design process, it is imperative that the slab, beam, or pile cap be engineered to withstand the disparity between its self-weight and the fail load.
Have a browse of our Cordek stock and filter by thickness or coverage on the left-hand side of the page. If you’d like to talk through the suitability of some products for your project, or get a quantity discount quotation please call us by phone on +4402039519012 , email sales@insulationstoreonline or Live Chat - Lowest UK Insulation board Prices.









