Question

The percentage of voids in solid bricks is about:

Answer 1

Brick used for building veneers is available in two primary types: solid brick (facing brick) and hollow brick. Different standards govern the manufacturing of these two brick types. Facing brick is manufactured to ASTM C216. Hollow brick is manufactured to ASTM C652.

The principal difference between the two brick types is the voids permitted. Facing brick must be a minimum 75% solid. Hollow brick is available in two Classes defined by ASTM C652 as H40V and H60V that are distinguished by the required voids.

H40V – 25% minimum and 40% maximum voids

H60V – 40% minimum and 60% maximum voids