Brick density is an important parameter. Density indicates the weight of the brickwork. Cores, Cells, and Frogs decrease the density and in turn, decrease the material cost.

While fire clay bricks have a density of 2400 kg/m3, for common red bricks it is 1900 kg/m3 . [1]

Apart from material density, brick density can be measured directly. The mass and volume of an oven-dried brick are measured. The bulk density can be determined by dividing the mass by volume.

\[Bulk\; Density=\frac{Mass}{Volume}\;in \; kg/m^{3}\; or \;lb/ft^{3}\]

 

References:

1. https://www.simetric.co.uk/si_materials.htm