Concrete Block – Dense – Internal & External Walls

Product Overview

This 100mm solid dense concrete block features a compressive strength rating of 7.3N/mm², with dimensions of 440mm x 215mm x 100mm. Produced from a dense aggregate mix of cement, sand, and crushed stone, it offers high load-bearing capacity and long-term durability. The block's mass enhances acoustic and fire performance, while its standard dimensions ensure compatibility with UK masonry systems. Suitable for structural internal and external walls, it is ideal for foundations, partitions, separating walls, and cavity wall inner leaves.

Features & Benefits

• 7.3N/mm² compressive strength: Perfect for load-bearing walls in residential, extension, and commercial projects.
• Dense aggregate composition: Provides resilience against impact, abrasion, and physical wear.
• High thermal mass: Aids in regulating internal temperatures by absorbing and releasing heat slowly.
• Effective sound insulation: Reduces airborne sound transmission, suitable for party walls.
• Non-combustible (Euroclass A1): Ensures fire safety, meeting building regulations.
• Secure base for fixings: Solid structure allows safe anchoring of heavy fittings with appropriate fixings.
• Frost resistance: Withstands cycles of freezing and thawing in external walling.
• Standard size 440mm x 215mm x 100mm: Easily integrates into traditional UK brick and block wall construction.

Applications

• Foundation walling: Standard choice for below-DPC applications such as foundations and sleeper walls.
• Internal load-bearing walls: Supports upper floors, ceilings, and roof structures.
• Separating walls: Provides acoustic insulation and fire resistance between dwellings.
• External walls: Forms the structural inner leaf of a cavity wall or a solid wall when finished with render, cladding, or other protective systems.

Installation Guidance

• Mortar bedding: Lay blocks on full, well-compacted mortar beds for strength and stability.
• Joins and bonding: Stagger vertical joints for wall strength; ensure full mortar coverage on perp ends.
• Finishing: Blocks should be plastered, drylined, rendered, or clad externally to protect against weather exposure.

• Compressive Strength: 7.3N/mm²
• Material: Cement, sand, and crushed stone
• Fire Rating: Euroclass A1

FAQ

Q: Can this block be used for external walls?
A: Yes, it is suitable for the structural inner leaf of cavity walls or solid walls.

Q: Is the block frost resistant?
A: Yes, it is manufactured to withstand cycles of freezing and thawing.