Cordek 155mm Cellcore HX B Grade 18/24 Ground Beam

155mm Cellcore HX B ground beam protection is purpose-built to sit beneath reinforced concrete ground beams and pile caps, offering defence against ground heave effects. The product features a carefully engineered cellular structure made from 155mm Expanded Polystyrene, precisely manufactured and tested to deliver consistent performance and exact tolerances.

Product Details

Brand: Cordek®

Thickness: 155mm

Length: 2400mm

Width: 1200mm

Model: 155mm (Grade 18/24)

Dimensions: 2,400mm x 1,200mm x 155mm

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: 20-40

Fail load: 24 kN/m2

Void Dimension (mm): 100mm

Shrinkage Category: Low

Manufacturer: Cordek Cellcore HXB

Key Attributes:

1. Reduces upward forces transmitted to your structure from ground heave.
2. Available in multiple profiles and grades to suit different project requirements.
3. BBA certified for assured quality and performance standards.
4. Meets NHBC Technical Standards, complying with industry requirements.
5. Holds BRE Global Verified Environmental Product Declaration (EPD) for environmental responsibility.
6. Produced using moulded techniques to guarantee consistent, reliable performance.
7. Can be supplied with integrated permanent formwork as an option.
8. Features patented technology for enhanced benefits.
9. 155mm Cellcore EPS Polystyrene Insulation Board.

The standard range includes various depths and grades, covering the most common soil heave risk and concrete depth combinations. Bespoke variants are also available for floor slab applications or where permanent formwork is required.

Usage Scenarios:

This 155mm Cellcore HX B range protects reinforced concrete ground beams and pile caps from the upward pressures caused by ground heave.

Usability

About

1. The 155mm Cordek Cellcore HX B is a lightweight EPS board for protecting concrete beams and pile caps against ground heave. Grade 18/24 accommodates concrete up to 660mm depth and meets all performance requirements.
2. This product is durable, BBA-certified, and NHBC-compliant, effectively reducing upward forces using patented technology.
3. A full range of depths and grades is available, tailored to different soil heave conditions and insulation requirements for pile caps or beams.
4. Select your panel depth (85mm, 155mm, or 220mm) based on ground heave risk. Installation is straightforward, and on-site cutting produces minimal dust.
5. Grade 18/24 provides a safe load of 18 kN/m2 and a fail load of 24 kN/m2. Safe load represents the maximum force the board can support without failure, whilst fail load causes permanent deformation.
6. The 155mm HX B has a low shrinkage category and plasticity index of 20-40.
7. Production costs vary with grade and concrete depth. Grade 7/10 offers the best value, with higher grades available: 9/13, 13/18, 18/24, 24/32, and 32/42.

Design Notes

Each 155mm 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 the "SAFE LOAD."

When the predetermined load is reached, the polystyrene legs of the Cordek panels will yield and collapse as ground movement occurs—this is called the "FAIL LOAD."

During 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 side of the page. For product suitability advice or bulk quotations, contact us on +4402038839057 , email sales@insulationbee or use Live Chat - Lowest UK Insulation board Prices.