Soil aggregate property

# Relative density :
Relative density is the one of the major property of soil aggregate. In this property it describes about the relative compactness of soil as very loose, loose, medium, dense and very dense. Mathematically, Relative density is given by: 

     
       D= (emax-e)/(emax-emin) *100%
• if the soil is very loose then e = emax and D = 0.
• if the soil is very dense, then e = emin and D=100%

☆ if the soil is very loose then degree of compactness (D%) is <15
☆ if the soil is loose then D% is