The quality of thermal insulation bricks varies in the market. How can we judge the quality of thermal insulation bricks?
Insulation bricks are heat insulation products with a regular shape, which is attributed to lightweight heat insulation refractory materials. The characteristics of this type of data are small bulk density, light bulk density, low thermal conductivity, low strength, and high temperature reheat shrinkage. Insulation bricks are often used as roof insulation materials, including polystyrene foam and polyurethane foam.
Distinguish the pros and cons of thermal insulation bricks
The choice of insulation brick can be judged simply by watching, listening, and stepping on. The detailed methods are:
1. High-quality thermal insulation brick is not only appearance proof and clean, but the material on the reverse side is also flat and clean. In general, the reverse side of the defective insulation brick is rough;
2. Good thermal insulation bricks have closed performance and poor water absorption, but this is why they have very few ventilation holes.
3. High-quality thermal insulation bricks are relatively clean because of the cement sand and stone used. Therefore, high-quality thermal insulation bricks are relatively solid, unlike residual thermal insulation bricks. Because there are too many impurities, they are often very brittle and very simple to damage ;
4. Same as the previous point, because the high-quality insulation bricks use high-purity data, so when they are quietly struck, they all emit crisp sounds, and the difference is the annoying sound of bricks;
5.Because high-quality thermal insulation bricks have good sturdiness and high strength, they can often accept the weight of two adults, and the defective thermal insulation bricks are often enough for one person to crush.
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