Water Content‐Density Criteria for Compacted Soil Liners
- 1 December 1990
- journal article
- Published by American Society of Civil Engineers (ASCE) in Journal of Geotechnical Engineering
- Vol. 116 (12) , 1811-1830
- https://doi.org/10.1061/(asce)0733-9410(1990)116:12(1811)
Abstract
Soil liners have traditionally been compacted in the field to a minimum dry weight over a specified range in water content. This approach evolved from the practice for structural fills for which strength and compressibility are of primary concern. With soil liners, hydraulic conductivity is usually of paramount importance. Hence, the approach used to ensure adequate strength and permissible compressibility is not necessarily applicable to the construction of soil liners. Data are presented to show that the water content‐density criteria for compacted soil liners can be formulated in a manner that is different from the approach currently used by many engineers. The recommended approach is based on defining water content‐density requirements for a broad, but representative, range of compactive energy, and relating those requirements to hydraulic conductivity and other relevant factors. A case history illustrates the recommended procedure and its implementation. Hydraulic conductivity measurements were perfo...Keywords
This publication has 8 references indexed in Scilit:
- Influence of Clods on the Hydraulic Conductivity of Compacted ClayJournal of Geotechnical Engineering, 1990
- Density Tests Above Zero Air Voids LineJournal of Geotechnical Engineering, 1989
- Permeability Testing in the Triaxial CellGeotechnical Testing Journal, 1986
- Hydraulic Conductivity Tests on Compacted ClayJournal of Geotechnical Engineering, 1985
- The Design and Testing of a Compacted Clay Barrier Layer to Limit Percolation Through Landfill CoversPublished by ASTM International ,1985
- Fixed-Wall Versus Flexible-Wall PermeametersPublished by ASTM International ,1985
- Permeability Testing with Flexible-Wall PermeametersGeotechnical Testing Journal, 1984
- Permeability of Compacted ClayJournal of the Soil Mechanics and Foundations Division, 1965