Relative Density

The higher the pore volume in relation to the total volume, the lower the density.

Image:

n = Porosity

min n = Porosity of densest form

max n = Porosity of loosest form

e = Void ratio

min e = Void ratio of densest form

max e = Void ratio of loosest form

Relative Density: D = (nmax – n) / (nmax – nmin)

Density Index: lD = (emax – e) / (emax – emin)

Compactability: lF = (emax – emin ) / e