High-quality bricks are basic building materials that must be used in order to make the construction durable. Working with low-grade second-hand bricks should also be avoided at all times since this will not be ideal for the strength of the structure, and also for safety.
Before installing them, make sure to test the quality of the used bricks in Melbourne. From visual checks to water absorption tests, there are several methods that can assist you. So, apply the most convenient method and ensure you use the best masonry material tailored for your project’s unique needs.
This blog looks at different test methods used to determine the quality of second-hand bricks in a simplified manner. Read on!
What Are the Qualities of a Good Used Brick?
Good old bricks are made up of robust materials and an expert manufacturing process. However, they come in different shapes and strengths for different project needs. It is easy to identify high-quality old bricks as they do not show any visible signs of defects. They are always available in consistent sizes and textures. By doing a comprehensive brick quality test, you can determine whether or not they’re safe, free from salts, and ensure longevity.
Keep in mind that the overall quality of used bricks determines your building’s structural integrity. If old bricks are the most attractive looking, it does not imply that they are the strongest. Hence, it is essential to assess their quality so that your structure can withstand environmental stresses.
Different Used Brick Quality Test
Visual Check of Bricks
During visual inspection, make sure the bricks fulfil the following parameters of quality:
- Free from cracks, chips, etc., as they can weaken your building’s integrity
- Not under-burnt and over-burnt to ensure their durability
- Should have clear edges to make the installation process easier
- Have a consistency to give a cohesive appearance
- Free from potassium nitrate
- From alkali salts to avoid dampness
Dimensional Accuracy
Do you want to ensure the uniformity of the brickwork? Consider doing the dimensional accuracy. With a consistent size, you can achieve perfect bonding and alignment of bricks in the structure.
Water Absorption Test
Do you want to test the porosity and density of the second-hand masonry bricks? Assess this using the water absorption test. Under this test, you should soak bricks in the cold water for at least 24 hours. Afterwards, the weight of the wet bricks is measured to know how much moisture the bricks have absorbed. Its results determine how strong bricks are. Stronger bricks mean they can withstand harsh weather conditions. Keep in mind that high-quality bricks show the result ranging from 12% to 20%.
Compressive Strength Test
It shows how much second-hand bricks can carry a load when they are compressed. To conduct this test, a special compression testing machine exerts pressure on old bricks until they break. During this procedure, the brick’s strength is measured in megapascals (MPs). Remember, if your bricks are superb in quality, they will show a minimum compressive strength of 10N/MM2.
Efflorescence Test
It is vital to test the presence of soluble salts in bricks when you are preparing for a construction project. For this, you will need to use an efflorescence test. This will help you see the white-crystal deposit on the surfaces, which is noticeable when there is the presence of soluble salts. Ideally, high-quality bricks show zero results, ensuring no potential risk of dampness or salt deposit. So, make sure to conduct this test to mitigate the risk of deterioration in the building.
Soundness or Clap Test Method
Using the sound or clap test method, it is seamless to measure the quality of bricks. In this method, you need to observe the sound when two bricks are struck together.. A clear, ringing sound means that bricks are first-class, whereas a dull sound represents flaws.
Frost and Abrasion Resistance
Are you residing in an area with extreme weather conditions? Do the frost resistance test. It evaluates the brick’s strength to withstand freeze-thaw cycles without breaking or failing. Likewise, abrasion resistance works in high-traffic areas. This ensures bricks do not lose their integrity despite constant wear.
Density Test
Do you want to assess the density of bricks to determine their strength? Conduct the density test. Here, you will measure the weight of a brick and measure the volume of the brick by determining its length, width and height. Greater density means that bricks are tough and lasting.
Conclusion
To sum up, the quality of second-hand bricks ensures the integrity of the structure. To make sure that your chosen old bricks can withstand environmental stresses, we suggest here some effective test methods. Keep in mind that each quality assessment technique plays a critical role in determining bricks’ suitability for your project’s specific needs and preferences.