440mm x 215mm x 300mm Thermalite T&G Trench Block 7N (Grab Pack of 20)
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440mm x 215mm x 300mm Thermalite T&G Trench Block 7N (Grab Pack of 20)

Product Code: B020174

£67.82
(per TN ex VAT)
£81.38
(inc VAT)

Thermalite Hi-Strength Trenchblock provides all the benefits of Trenchblock, together with the 7.3N/mm2 compressive strength of Thermalite Hi-Strength.

Key Features
- For use in soils of up to Design Sulfate Class DS 4
- Available with tongue and groove joints and handholds

Applications
- Foundations

Face Dimension
440 x 215mm

Block Thickness
300mm

Block Weight
21.3kg

Strength
7.3N/mm2

Thermal Conductivity
0.18W/m.K (Above DPC), 0.29W/m.K (Below Ground)

Density
730kg/m3

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