American Society of Civil Engineers

Formula to Get Desired Soil Density

by Rusk Masih, (Assoc. Prof., CEE Dept., Univ. of Connecticut, Groton, CT 06340. E-mail:

Journal of Geotechnical and Geoenvironmental Engineering, Vol. 126, No. 12, December 2000, pp. 1145-1150, (doi:

     Access full text
     Purchase Subscription
     Permissions for Reuse  

Document type: Journal Paper
Abstract: Changing the soil characteristics is a main concern to all civil engineers. Highway and foundation engineers are particularly more concerned with the subject. There are several methods to improve the soil characteristics. One of these methods is to add fine material, which fills the voids between the grains of the soil, helping to make the soil denser, thus gaining high resistance to penetration. This study uses statistical parameters of the soil grains distribution to predict the soil maximum dry density, then uses the fine biasness coefficient to predict the new density of the soil after mixing any amount of fine particles with the original soil. A mathematical formula is developed to make such a prediction. Lab testing results were compared with the results of the prediction. They were found to be in total agreement, and the margin of error was found to be quite low.

ASCE Subject Headings:
Grain size
Soil stabilization