Can the diffuse double layer theory describe changes in hydraulic conductivity of compacted clays?

2006 ◽  
Vol 24 (6) ◽  
pp. 1835-1844 ◽  
Author(s):  
Robrecht M. Schmitz
Keyword(s):  
Hydraulic Conductivity ◽  
Double Layer ◽  
Diffuse Double Layer ◽  
Compacted Clays ◽  
Double Layer Theory

scholarly journals Estimation of Compressibility and Permeability of Very Soft Clays by Means of the Diffuse Double Layer Theory

1991 ◽  
Vol 31 (3) ◽  
pp. 175-184 ◽  
Author(s):  
Hyeongjoo Kim ◽  
Hiroshi Yoshikuni ◽  
Kazuhiro Tsurugasaki
Keyword(s):  
Double Layer ◽  
Diffuse Double Layer ◽  
Soft Clays ◽  
Double Layer Theory

Prediction of the hydraulic conductivity of clays using the electric double layer theory

1999 ◽  
Vol 36 (5) ◽  
pp. 783-792 ◽  
Author(s):  
Gopal Achari ◽  
R C Joshi ◽  
L R Bentley ◽  
S Chatterji
Keyword(s):  
Hydraulic Conductivity ◽  
Double Layer ◽  
Electric Double Layer ◽  
Layer Model ◽  
Clay Liners ◽  
Overburden Pressure ◽  
Clay Particles ◽  
Concentration Of Ions ◽  
Double Layer Model ◽  
Double Layer Theory

A model to predict the hydraulic conductivity of consolidated clay, simulating clay liners compacted wet of optimum, is presented. The concept that clays exist as clusters and the electrical double layer theory are used to predict the hydraulic conductivity of clays for permeants of known composition. The model relates the physical properties of clays, such as its surface area, with the overburden pressure and the concentration of ions in the permeant. The model can be used to predict the hydraulic conductivity of bentonitic clays with monovalent as well as divalent exchangeable cations. The model is valid within the range of applicability of the Gouy-Chapman electric double layer theory. The variation in the number of clay particles per cluster with the consolidation pressure and concentration of ions in the permeant has been discussed. The model has been calibrated and verified using published experimental data. However, the model in its present form is valid only for homoionic clays and permeants with the same valency. With an increase in concentration of ions in the permeant, the precision of the model has been found to decrease. Key words: clay, clusters, hydraulic conductivity, double layer, model, permeant, concentration.

Novel procedure for the estimation of swelling pressures of compacted bentonites based on diffuse double layer theory

2012 ◽  
Vol 70 (1) ◽  
pp. 303-314 ◽  
Author(s):  
Tadikonda Venkata Bharat ◽  
Puvvadi Venkata Sivapullaiah ◽  
Mehter M. Allam
Keyword(s):  
Double Layer ◽  
Diffuse Double Layer ◽  
Double Layer Theory
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