220mm Cellcore HX B Grade 18/24 Under Beam EPS

220mm Cellcore HX B Under Beam EPS Concrete Ground Beams is engineered for use beneath reinforced concrete ground beams and pile caps, providing protection against ground heave effects. The product features a carefully engineered cellular structure made from 220mm Expanded Polystyrene, manufactured and tested to strict tolerances for reliable performance.

Product Details

Brand: Cordek®

Thickness: 220mm

Length: 2400mm

Width: 1200mm

Model: 220mm (Grade 18/24)

Dimensions: 2,400mm x 1,200mm x 220mm

Board Coverage: 2.88m2

Grade: 18/24

Maximum depth of concrete: 660mm

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: 18 kN/m2

Plasticity Index: 40-60

Fail load: 24 kN/m2

Void Dimension (mm): 150mm

Shrinkage Category: Low

Manufacturer: Cordek Cellcore HXB

Key Attributes:

1. Reduces upward forces transmitted to structures from ground heave.
2. Available in multiple profiles and grades for different project requirements.
3. BBA certified for quality assurance and dependability.
4. Meets NHBC Technical Standards and industry requirements.
5. Holds BRE Global Verified Environmental Product Declaration (EPD) for environmental responsibility.
6. Produced using molded techniques to ensure consistent, reliable performance.
7. Optional integrated permanent formwork available.
8. Features patented technology for enhanced benefits.
9. 220mm Cellcore EPS Polystyrene Insulation Board.

The standard range includes various depths and grades suited to typical soil heave risks and concrete depths. Bespoke variants are also available for floor slab applications or where permanent formwork is required.

Usage Scenarios:

The 220mm Cellcore HX B Under Beam series protects reinforced concrete ground beams and pile caps from upward pressures caused by ground heave.

Usability

About

1. The 220mm Cordek Cellcore HX B is a lightweight EPS board for use beneath concrete beams and pile caps to counteract ground heave. Grade 18/24 is suitable for concrete up to 660mm depth and meets required performance standards.
2. This product is durable, BBA-certified, and NHBC-compliant, minimising upward forces with patented technology.
3. A range of depths and grades are available, adaptable to soil heave conditions and insulation requirements under pile caps or beams.
4. Select the panel depth (85mm, 155mm, or 220mm) according to soil heave potential. Installation is straightforward with minimal dust generation when cut on-site.
5. Grade 18/24 indicates a safe load of 18 kN/m2 and fail load of 24 kN/m2. Safe load represents the maximum force the product withstands without failure, whilst fail load causes permanent deformation.
6. The 220mm HX B has low shrinkage characteristics and a plasticity index of 40-60.
7. Manufacturing costs vary by grade and concrete depth. Grade 7/10 offers the most economical option compared to higher grades: 9/13, 13/18, 18/24, 24/32, and 32/42.

Design Notes

Each 220mm Cellcore HX B grade is engineered to support a specific concrete thickness, plus a live load allowance of 1.5 kN/m2, with minimal creep compression over a 16-hour curing period. This is termed the "SAFE LOAD."

When the predetermined load is reached, the polystyrene legs of the Cordek panels will yield and collapse from upward ground movement, known as the "FAIL LOAD."

In structural design, the slab, beam, or pile cap must be engineered to handle the difference between its self-weight and the fail load.

Info

Browse our Cordek range and filter by thickness or coverage on the left-hand side. For advice on product suitability for your project or quantity discount quotations, contact us on +4402038839057, email sales@insulationbee or use Live Chat - Lowest UK Insulation board Prices.