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Engineering-quality concrete brick with three-role perforation and smooth finish, manufactured in accordance with BS EN 771-3: 2011.

Features and benefits:

  • Provides durability and high strength.
  • Manufactured from dense aggregates.
  • Offers frost resistance and low water absorption.
  • Produced in the UK with locally sourced materials.

For utility purposes.


If using Tobermore Engineering Quality Control bricks in conjunction with other walling products, refer to the general mechanical properties (including movement and shrinkage) of both products to ensure that they are compatible.

General information
Specification data - Aggregate concrete bricks
Product Reference

Engineering Quality Control Brick



Standard product features

Size (w x d x h):

215 x 100 x 65 mm.


3 kg (per brick).

Technical characteristics:

  • Strength: >50 N/mm².
  • Shrinkage: 0.40 mm/m.
  • Durability: F2 (severe exposure).
  • Tolerances: Category D1.
  • Reaction to fire: A1.
  • Water absorption by capillary: 2 g/m²/s.
  • Water absorption: <7% (on average).
  • Soluble salt content: S2.
  • Net dry density: 2270 kg/m³.
  • Gross dry density: 2030 kg/m³.
  • Shear bond strength: 0.15 N/mm².
  • Thermal conductivity: Protected: 1.62 W/m·K; Exposed: 1.31 W/m·K.


Minimum 12-hour vapour curing to significantly reduce the possibility of efflorescence.


  • Energy used: 100% renewable energy.
  • Water used: 100% rainwater from rainwater harvesting system.
  • Recyclability: 100% of this product can be recycled.
  • BREEAM: A+ rating in accordance with the 'Green Guide to Specification', 4th Edition, 2009.
  • Carbon Footprint: 22 kgCO2e/m².

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