H+H's Celcon Blocks High Strength Grade (7.3N/mm2) are used principally where higher compressive strength is required such as in the foundations and lower storeys of three storey buildings, piers under high vertical loads and in multi-storey buildings.
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  • Internal leaf of cavity walls
  • External leaf of cavity walls
  • Solid walls
  • Separating walls
  • Flanking Walls
  • Partitions
  • Multi storey buildings
  • Foundations

Features & Benefits

Our higher strength grade blocks were re-named from Hi-Seven to High Strength in 2011. Apart from the name, there has been no technical specification changes to the product and it can be used in exactly the same way and in the same applications as before.
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