Hydraulic Conductivity and Swelling of Nonprehydrated GCLs Permeated with Single-Species Salt Solutions
Top Cited Papers
- 1 July 2001
- journal article
- Published by American Society of Civil Engineers (ASCE) in Journal of Geotechnical and Geoenvironmental Engineering
- Vol. 127 (7), 557-567
- https://doi.org/10.1061/(asce)1090-0241(2001)127:7(557)
Abstract
The influence of single-species salt solutions of various concentration, cation valence, and pH on swelling and hydraulic conductivity of nonprehydrated GCLs was examined. At similar concentration, swell was largest with NaCl, KCl, and LiCl solutions (monovalent cations Na+, K+, and Li+) and smallest with LaCl3 solutions (trivalent cation La3+). Intermediate swell volumes were obtained with divalent solutions (CaCl2, MgCl2, ZnCl2, and CuCl2). Analogous results were obtained from hydraulic conductivity tests. GCL specimens permeated with solutions containing divalent or trivalent cations had higher hydraulic conductivity than GCLs permeated with monovalent solutions or deionized water, unless the divalent or trivalent solutions were very dilute (≤0.01 M). Hydraulic conductivity increased as the concentration increased, and at high concentration (1 M) only small differences existed between hydraulic conductivities measured with all solutions. Swelling and hydraulic conductivity were related to size of the h...Keywords
This publication has 37 references indexed in Scilit:
- Properties and test methods to assess bentonite used in geosynthetic clay linersPublished by Informa UK Limited ,2020
- Calcium and Sodium Bentonite for Hydraulic Containment ApplicationsJournal of Geotechnical and Geoenvironmental Engineering, 1997
- The Swelling of Clays: Molecular Simulations of the Hydration of MontmorilloniteScience, 1996
- Computer Simulation of Interlayer Molecular Structure in Sodium Montmorillonite HydratesLangmuir, 1995
- Hydraulic Conductivity and Waste Contaminant Transport in SoilPublished by ASTM International ,1994
- Viscosity and dielectric constant controls on the hydraulic conductivity of clayey soils permeated with water-soluble organicsCanadian Geotechnical Journal, 1988
- Hydraulic conductivity of natural clays permeated with simple liquid hydrocarbonsCanadian Geotechnical Journal, 1985
- Influence of Inorganic Permeants upon the Permeability of BentonitePublished by ASTM International ,1985
- Lattice Expansion and Rheological Behavior Relationships in Water-Montmorillonite SystemsClays and clay minerals (National Conference on Clays and Clay Minerals), 1954
- Geochemical studies of clay minerals III. The determination of free silica and free alumina in montmorillonitesGeochimica et Cosmochimica Acta, 1953