Celcon Block High Strength and Super Strength Grade

H+H’s Celcon Blocks High Strength Grade (7.3N/mm2 – identified with a black stripe on the block) and Super Strength Grade (8.7N/mm2 – identified with a red stripe on the block) are ideal where higher compressive strengths are required such as in the foundations and lower storeys of three storey buildings, piers under high vertical loads and in multi-storey buildings.



Available in thicknesses from 100mm to 355mm.  They are third party accredited under BBA and certified for use in the applications listed under Applications below.


Celcon Blocks High Strength Grade Super Strength Grade
Compressive Strength 7.3N/mm2 8.7N/mm2
Thermal Conductivity 0.18 W/mK 0.18 W/mK
Density 730 kg/m3 730 kg/m3



Application Suitability
Internal leaf of cavity walls
External leaf of cavity walls
Solid walls
Separating walls
Flanking walls
Multi Storey Buildings
Foundations/Below ground level (DPC)
Beam and Block Floors


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