85mm Cellcore HX B Grade 18/24 Ground Beam EPS

85mm Cellcore HX B Ground Beam EPS is purpose-built for installation beneath reinforced concrete ground beams and pile caps, offering protection against ground heave effects. The product features a carefully engineered cellular structure made from 85mm Expanded Polystyrene, precision-manufactured and tested to strict tolerances for reliable performance.

Product Details

Brand: Cordek®

Thickness: 85mm

Length: 2400mm

Width: 1200mm

Model: 85mm (Grade 18/24)

Dimensions: 2,400mm x 1,200mm x 85mm

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: 10-20

Fail load: 24 kN/m2

Void Dimension (mm): 50mm

Shrinkage Category: Low

Manufacturer: Cordek Cellcore HXB

Key Attributes:

1. Reduces upward forces transmitted to structures from ground heave movements.
2. Provides multiple profiles and grades suited to different project requirements.
3. BBA certified for quality assurance and structural reliability.
4. Meets NHBC Technical Standards and industry compliance requirements.
5. Features BRE Global Verified Environmental Product Declaration for sustainable building practices.
6. Produced using precision molding techniques for consistent quality.
7. Available with optional integrated permanent formwork solutions.
8. Incorporates patented technology for enhanced performance benefits.
9. 85mm Cellcore EPS Polystyrene Insulation Board for ground protection.

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

Usage Scenarios:

The 85mm Cellcore HX B series protects reinforced concrete ground beams and pile caps from upward pressures caused by ground heave.

Usability

About

1. Cordek Cellcore HX B at 85mm thickness is a lightweight EPS board for use beneath concrete beams and pile caps to counteract ground heave. Grade 18/24 is suitable for concrete depths up to 660mm and meets required performance standards.
2. The board is durable, BBA-certified, and NHBC-compliant, effectively minimising upward forces through patented design.
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 appropriate panel depth (85mm, 155mm, or 220mm) based on soil heave risk assessment. Installation is straightforward with minimal dust generation during on-site cutting.
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 board withstands without failure, whilst fail load causes permanent deformation.
6. The 85mm HX B exhibits low shrinkage characteristics and a plasticity index between 10-20.
7. Production costs vary by grade and concrete depth, with Grade 7/10 offering the most economical option compared to higher grades: 9/13, 13/18, 18/24, 24/32, and 32/42.

Design Notes

Each 85mm Cellcore HX B grade is engineered to support a specific concrete thickness, plus a 1.5 kN/m2 live load allowance, 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 due to upward ground movement, referred to as the "FAIL LOAD."

During structural design, the slab, beam, or pile cap must be calculated to resist the difference between its self-weight and the fail load.

Info

Browse our Cordek range and filter by thickness or coverage on the left side of the page. For advice on product suitability for your project or to request a quantity discount quotation, please contact us on +4402038839057, email sales@insulationbee, or use Live Chat - Competitive UK Insulation board Pricing.