Thermalite Hi-Strength Trenchblock provides all the benefits of Trenchblock, together with the 7.3N/mm2 compressive strength of Thermalite Hi-Strength.
- For use in soils of up to Design Sulfate Class DS 4
- Available with tongue and groove joints and handholds
440 x 215mm
0.18W/m.K (Above DPC), 0.29W/m.K (Below Ground)