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440mm x 215mm x 300mm Thermalite T&G Trench Block 7N (Grab Pack of 20)
Product code: B020174
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Description
Thermalite Hi-Strength Trenchblock provides all the benefits of Trenchblock, together with the 7.3N/mm2 compressive strength of Thermalite Hi-Strength.
Features:
- For use in soils of up to Design Sulfate Class DS 4
- Available with tongue & groove joints & handholds
Applications:
- Foundations
Face Dimension:
440mm 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