The absolute volume of a material is the volume occupied by the solid particles. For example, consider a 100-

pound box of gravel. One way to find the absolute volume of gravel would be to actually measure the volume of

water displaced by 100 pounds of gravel. Figure 2-4 shows a container of water before and after gravel is added.

If the column is 1 foot by 1 foot and the 100 pounds of gravel displaces 7 inches of water, then the absolute

volume of the gravel is 1 foot by 1 foot by 7/12 foot = .583 ft3.