Quality of Clay Brick
The Rigorous Testing of Clay Bricks
Our members are committed to providing the highest quality clay bricks for construction projects across the UK. This dedication to excellence is reflected in the rigorous testing processes employed throughout the entire brick manufacturing journey.
Clay Selection: Building a Strong Foundation
Before clay brick production begins, chemical and physical properties of the clay are meticulously assessed to ensure suitability for brick production.Â
These tests include:
- Chemical Composition: Analysing the clay's composition for key elements like alumina, silica, and iron oxide, which influence the final brick properties.
- Plasticity: Determining the clay's ability to be moulded and retain its shape.
- Drying and Firing Characteristics: Evaluating how the clay behaves during drying and firing processes to prevent cracking or warping.
Brick Manufacturing: Quality Control at Every Stage
Throughout the manufacturing process, ongoing testing ensures consistent quality:
- Moisture Content Monitoring:Â The clay's moisture content is continuously monitored for optimal shaping and firing.
- Density:Â Brick density is regularly checked to meet specific performance requirements.
- Visual Inspection:Â Trained professionals conduct thorough visual inspections to identify any defects in shape, colour, or texture.
Post-Firing Tests: Ensuring Lasting Performance
Once fired, the bricks undergo final tests to confirm they meet stringent quality standards:
- Water Absorption:Â Measuring the brick's ability to absorb water, influencing factors like weather resistance and durability.
- Compressive Strength:Â Assessing the brick's ability to withstand compressive loads, crucial for structural applications.
- Dimensional Accuracy:Â Brick dimensions are measured for compliance with British Standards (BS) specifications (BS EN 771-1).
- Freeze-Thaw Resistance:Â Bricks are subjected to cycles of freezing and thawing to assess their durability in harsh weather conditions.
- Efflorescence: Testing for the presence of white mineral deposits (also known as ‘salts’) on the brick surface, which can be aesthetically unpleasing.
- Colour Consistency:Â Any colour variations that might affect aesthetics are identified after firing, guaranteeing a uniform appearance for your project.
These tests are conducted to ensure that clay bricks meet the rigorous quality, safety, and performance standards set by British Standards.
By undergoing these comprehensive laboratory and manufacturing stage tests, UK clay brick manufacturers are confident their products are safe, durable, and meet the performance expectations for various construction projects.
