Red Engineering Bricks

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Red engineering bricks, celebrated for their distinctive colour and exceptional durability, are a staple in high-quality construction. Offering superior strength, low water absorption, and unparalleled freeze-thaw durability, these bricks are ideally suited for challenging conditions and infrastructural works.

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What Are Red Engineering Bricks? 

Red engineering bricks are a type of dense, strong brick used primarily for their physical characteristics rather than their aesthetic appeal. 

With their high compressive strength and low water absorption properties, they're highly sought after in applications where strength, durability, and moisture resistance are paramount.

These bricks, conforming to 'Class B' under the BS EN 771-1 specifications, are manufactured to be highly resistant to frost attack and chemical exposure. 

Their strength is tested to be at least 75N/mm², making them an ideal choice for civil engineering works.

Red Engineering Bricks Applications 

Red engineering bricks are suitable for a myriad of applications due to their robust and resilient nature. Here are some of their common uses:

  • Retaining Walls: With their high compressive strength, red engineering bricks make excellent retaining walls, providing solid and durable structures.
  • Damp Proof Courses: Due to their low water absorption properties, red engineering bricks, are used in damp-proof courses to resist moisture penetration in buildings.
  • Manhole Cover Surroundings: Due to their hard-wearing nature, these bricks are suitable for environments exposed to heavy-duty usage such as manhole covers.
  • Underground Structures: Their strength and resistance to ground moisture make them an ideal choice for underground applications.
  • Door Reveals and Window Sills: The smooth, uniform appearance of these bricks makes them ideal for use in door reveals and window sills.

Red Engineering Bricks Key Features

  • High Compressive Strength: Class B engineering bricks have a compressive strength greater than 75N/mm², providing robust and long-lasting structures.
  • Low Water Absorption: These bricks have low water porosity, which contributes to their use in damp proof courses and frost attack-resistant applications.
  • Frost Resistant: Class B engineering bricks are highly resistant to frost attack due to their low water absorption properties.
  • Versatility: From feature brickwork to manhole cover surroundings, the robustness and versatility of red engineering bricks are unmatched.

Class B Engineering Brick - What Is It? 

For an engineering brick to qualify as Class B, it must exhibit the following features: 

  • The compressive strength should at least be 75N/mm2
  • The water absorption should not exceed 7%
  • It should have F2 level durability against freeze-thaw cycles
  • The content of active soluble salts should be at an S2 level

Frequently Asked Red Engineering Bricks Questions

How Does The Colour of Engineering Bricks Differ?

Despite the common misconception that Class A engineering bricks are exclusively blue and Class B bricks are solely red, the contemporary market conditions demonstrate this isn't necessarily true. Today, both red Class A and Class B blue engineering bricks can be easily found.

Are Red Engineering Bricks Suitable For Exterior Walls?

Yes, with their high compressive strength, low water absorption, and resistance to frost attack, red engineering bricks are suitable for exterior wall applications.

How Do Red Engineering Bricks Compare With Facing Bricks?

Red engineering bricks are known for their strength and durability while facing bricks are used mainly for their aesthetic appeal. Engineering bricks have lower water absorption and higher frost resistance, making them more suitable for harsh environments.

What Is The Significance Of BS EN 771 In Relation To Bricks?

BS EN 771 is a European standard specifying the requirements for masonry units, including bricks. It ensures the quality, durability, and safety of the bricks.

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