Location
St. Louis, Missouri
Date
01 Jun 1993 - 06 Jun 1993
Abstract
Compacted clay liners and covers are widely used in waste containment units. Case histories in three categories are presented: (1) case histories illustrating compaction, construction, and quality assurance difficulties; (2) case histories involving field hydraulic conductivity testing of large-scale test pads; and (3) case histories involving final cover systems. The case histories illustrate that: (1) compaction criteria should be chosen carefully and with consideration given to how the compaction will be controlled in the field; (2) regulatory roadblocks may defeat sound technical approaches in terms of developing compaction criteria; (3) one can follow ASTM procedures and still get into difficulty if sample preparation procedures are not given special attention; ( 4) data on field performance of test pads provides valuable insight concerning the relationship between hydraulic conductivity and field performance; and (5) problems with differential settlement, desiccation, and freeze-thaw make use of compacted clay liners a challenge in final cover systems -- geosynthetic clay liners offer an attractive alternative.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
3rd Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 1993 University of Missouri--Rolla, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Daniel, David E., "Case Histories of Compacted Clay Liners and Covers for Waste Disposal Facilities" (1993). International Conference on Case Histories in Geotechnical Engineering. 2.
https://scholarsmine.mst.edu/icchge/3icchge/3icchge-session15/2
Case Histories of Compacted Clay Liners and Covers for Waste Disposal Facilities
St. Louis, Missouri
Compacted clay liners and covers are widely used in waste containment units. Case histories in three categories are presented: (1) case histories illustrating compaction, construction, and quality assurance difficulties; (2) case histories involving field hydraulic conductivity testing of large-scale test pads; and (3) case histories involving final cover systems. The case histories illustrate that: (1) compaction criteria should be chosen carefully and with consideration given to how the compaction will be controlled in the field; (2) regulatory roadblocks may defeat sound technical approaches in terms of developing compaction criteria; (3) one can follow ASTM procedures and still get into difficulty if sample preparation procedures are not given special attention; ( 4) data on field performance of test pads provides valuable insight concerning the relationship between hydraulic conductivity and field performance; and (5) problems with differential settlement, desiccation, and freeze-thaw make use of compacted clay liners a challenge in final cover systems -- geosynthetic clay liners offer an attractive alternative.
