Hi-Strength 10 has been specifically developed for structural applications such as three or four storey buildings, where loading conditions require a 10.4N/mm² building block.
Hi-Strength 10 blocks are available in a range of thicknesses as a special order item only. Please consult Customer Services for full details. Working dimensions
Face dimensions (mm) 440 x 215, 440 x 430Thicknesses and weights
Block thicknesses & weights at equilibrium density (for 440 x 215mm)
Mean compressive strength not less than 8.7N/mm²**
Designed thermal conductivity (λ) 0.20W/mK
Specified gross dry density 770kg/m³
*Block weights are calculated using specified gross dry density, with a moisture content of 3% by weight added to provide the equilibrium value.
** Blocks are manufactured to BS EN 771-4, Category 1, which allows the use of an enhanced partial safety factor (BS 5628).