Masters Theses
Abstract
"The in-situ hydraulic conductivity of a compacted soil liner has historically been predicted using laboratory testing methods. The most widely accepted laboratory method for measuring hydraulic conductivity of fine-grained soils is the flexible-wall triaxial cell permeameter method standardized by the American Society for Testing and Materials (ASTM) as ASTM D 5084-90.
Factors which influence the laboratory measurement of hydraulic conductivity include method of sample preparation, molding water content, degree of saturation, sample dimensions, type of permeameter, hydraulic gradient, effective stress at outflow end of sample, type of permeant, and growth of microoganisms.
Twelve flexible-wall triaxial cell permeameter hydraulic conductivity tests were conducted in general accordance with Method C of ASTM D 5084-90 on an artificial clayey silt (ML) to evaluate the influence of sample length, hydraulic gradient, and test duration. The test results show that 1) relatively long samples exhibit lower hydraulic conductivities than shorter samples, 2) for a given sample length, hydraulic gradient has little to no influence for gradients up to 200, and 3) after approximately one pore volume has passed through the sample, test duration up to approximately six pore volumes of flow shows little influence"--Abstract, page iii.
Advisor(s)
Stephenson, Richard Wesley
Committee Member(s)
Lentz, Rodney
Cawlfield, Jeffrey D.
Department(s)
Civil, Architectural and Environmental Engineering
Degree Name
M.S. in Civil Engineering
Publisher
University of Missouri--Rolla
Publication Date
Fall 1994
Pagination
ix, 38 pages
Note about bibliography
Includes bibliographical references (pages 36-37).
Rights
© 1994 Steven Michael Bruer, All rights reserved.
Document Type
Thesis - Restricted Access
File Type
text
Language
English
Subject Headings
Soils -- TestingSoil permeability -- TestingSoil moisture
Thesis Number
T 6853
Print OCLC #
32770339
Electronic OCLC #
961478920
Recommended Citation
Bruer, Steven Michael, "An assessment of selected factors which influence the hydraulic conductivity of fine-grained soils" (1994). Masters Theses. 1375.
https://scholarsmine.mst.edu/masters_theses/1375
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