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This is why bricks are not allowed to have bubbles, if some water gets stuck in those in rain and in winter if it freezes we get cracks
by rick_2047 16y ago
This is why bricks are not allowed to have bubbles, if some water gets stuck in those in rain and in winter if it freezes we get cracks
- billswift 16y agoA lot of normal building brick is pretty porous, if not protected from getting really wet just before a freeze you get spalling, where the face of the brick flakes off. Brick that is too non-porous on the other hand, like sewer brick, forms relatively weak mortar bonds, which is why it is rarely used in buildings.