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Thermalite Trenchblock Tongue and Groove is an alternative to the construction of cavity walls with concrete infill, engineering bricks or heavy aggregate blocks for foundations. It is available as Hi-Strength Trenchblock (with compressive strength of 7.3N/mm2) and with tongue and groove joints and handholds for easy handling.
Compressive Strength: 3.6 N/mm²
λ Design above dpc: 0.15 W/m.K
λ Below ground: 0.24 W/m.K
Dry Density: 600 kg/m³
Face dimensions (mm): 440 x 215
Block thicknesses and weights at equilibrium density (for 440 x 215mm)
Height | Length | Width | Dry Weight |
---|---|---|---|
215mm | 440mm | 255mm | 14.9kg |
215mm | 440mm | 275mm | 16.1kg |
215mm | 440mm | 300mm | 17.5kg |
215mm | 440mm | 355mm | 20.8kg |
Foundations