Red Seal Bricklayer Practice Exam

Question: 1 / 400

Which characteristic is essential for bricks used in areas with high moisture?

High absorption rate

Low absorption rate

When considering bricks for use in areas with high moisture, a low absorption rate is essential. Bricks with a low absorption rate tend to resist water penetration, which is critical in preventing damage from freeze-thaw cycles, mold growth, and structural degradation over time.

In high-moisture environments, bricks that absorb water can lead to issues such as efflorescence, where soluble salts are drawn to the surface and create unsightly stains. Additionally, when moisture enters the brick and then freezes, it can expand and cause cracking or spalling, compromising the integrity of the structure.

Bricks with low absorption rates are often denser and more durable, making them suitable for regions that experience high levels of precipitation or humidity. This characteristic effectively prolongs the life of the brickwork and maintains its aesthetic and functional qualities over time.

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