A CONTRIBUTION TO THE THEORY OF POROSITY
OF FINE-GRAINED SEDIMENTS

J. G. Dueck,a D. Purevjav,b and D. Yu. Kilimnikc 

UDC 539.6,539.217

The influence of adhesive forces on the structure of sedimentation 
layers has been considered. A theoretical model allowing calculation 
of the porosity of a sedimentation layer as a function of the particle 
size, the layer thickness, and the adhesive-force level has been developed. 
Experiments in which these variables were changed have been carried 
out. The adhesive force was varied by changing the concentration of 
the electrolyte. A quantitative agreement between theory and experiment 
is observed for the porosity as a function of the particle size and 
the layer thickness; for the porosity as a function of the adhesive 
force this agreement is qualitative.

aErlangen-Nurnberg University (Universitat Erlangen-Nurnberg),
D-91052, Erlangen, Germany; email: Johan.Dueck@uvt.cbi.uni_erlangen.de; 
bMongolian State University of Science and Technology, Ulan 
Bator-46, Mongolia; c N. E. Bauman Moscow State Technical 
University, 5 2nd Baumanskaya Str., Moscow, 107005, Russia. Translated 
from Inzhenerno-Fizicheskii Zhurnal, Vol. 77, No. 1, pp. 77-85, 
January-February, 2004. Original article submitted August 6, 2003.