90mm Cellcore HX S Grade 7/10 Anti Heave Board

90mm Cellcore HX S Anti Heave Board is a specialist EPS solution designed for placement beneath reinforced concrete floor slabs to shield structures from ground heave damage. This 90mm cordek hxs board combines a cellular Expanded Polystyrene structure with precision engineering and rigorous testing to deliver reliable performance.

Product Details

Brand: Cordek®

Model: 90mm (Grade 7/10)

Thickness: 90mm

Length: 2400mm

Width: 1200mm

Coverage: 2.88m2

Grade: 7/10

Standard Panel: 2400mm x 1200mm

Beams Widths: 2400mm x 1200mm to 300mm (in 25mm increments)

Material: (EPS Insulation) Expanded Polystyrene

Shipping method: Rigid Vehicle ǀ Courier

Applications: Reinforced concrete floor slabs

BBA Certified: Yes

Maximum depth of concrete: 220mm

Safe load: 7 kN/m2

Shrinkage Category: Low

Plasticity Index: 10-20

Fail load: 10 kN/m2

Features: Durable ǀ 4th Generation ǀ minimize wastage

Manufacturer: 90mm Cordek Cellcore HXS®

The 90mm Cordek Cellcore HX S Grade 7/10 functions as a protective barrier beneath reinforced concrete floor insulation slabs, reducing ground heave impact by suppressing upward force transmission to your building.

This Anti Heave Board has been engineered and tested to perform reliably with concrete thicknesses up to 220mm, meeting stringent performance standards consistently. The 90mm Cordek Cellcore HXS Grade 7/10 delivers proven protection for your foundation.

Key Attributes:

1. Reduces upward forces transmitted to the structure from ground heave.
2. Available in multiple profiles and grades for different project requirements.
3. BBA certified for quality assurance and structural reliability.
4. Meets NHBC Technical Standards for industry compliance.
5. Verified by BRE Global with Environmental Product Declaration (EPD) credentials.
6. Precision-moulded construction ensures consistent, superior performance.
7. Can be supplied with integrated Filcor insulation for permanent ground beam formwork or passive gas venting.
8. Backed by patented technology for distinctive performance benefits.

Our product range includes various depths and grades tailored to common soil heave scenarios and concrete specifications. We also supply specialist variations for pile cap applications, ground beams, or projects needing integrated insulation, permanent formwork, or passive ventilation systems.

Applications

The 90mm Cellcore HX S range protects reinforced concrete floor slabs from upward forces caused by ground heave effects.

Usability

For concrete thicknesses between 1220mm and 2000mm, further grades of Cellcore are available. For further advice please contact the InsulationBee Technical Team on 02038839057 / 02038839057.

Design Notes

1. Each 90mm Cellcore hxs grade is engineered to support a specific concrete thickness, plus an allowance for live loads of 1.5 kN/m², with minimal creep compression over a 16-hour curing period. This is termed the "SAFE LOAD."

2. When the load reaches the predetermined threshold, the polystyrene legs of the 90mm Cordek panels will buckle and collapse as underlying ground moves upward—this is called the "FAIL LOAD."

3. During design, ensure the slab, beam, or pile cap is sized to handle the difference between its weight and the fail load, as shown in the design examples on the following page.

Info

Browse our Cordek range and filter by thickness or coverage using the left-hand menu. For product suitability advice, quantity discounts, or quotations, contact us on +4402038839057, email sales@insulationbee, or use Live Chat for the best UK Insulation board prices.