Calibrations for volume change measurements using osmotic suction control technique
Joint Authors
Abbas, Muhammad Fadil
al-Qadi, Tamir Y.
al-Shamrani, Muslih A.
Source
Housing and Building National Research Center Journal
Issue
Vol. 13, Issue 1 (30 Apr. 2017), pp.40-46, 7 p.
Publisher
Housing and Building National Research Center
Publication Date
2017-04-30
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Natural & Life Sciences (Multidisciplinary)
Abstract EN
Evaluation of the volume change behavior of expansive soils under controlled suction and boundary conditions is important for the proper design of different geotechnical systems.
Osmotic technique was used by several researchers for suction controlled testing of expansive soil specimens.
This technique involves circulating polyethylene glycol solution (PEG) over a semipermeable membrane underlying a test specimen.
Different suction controlled testing apparatuses incorporating osmotic techniques were developed included triaxial and oedometric testing conditions to simulate different boundary conditions.
This paper describes a series of calibration performed on suction controlled modified oedometer and triaxial equipment used for testing expansive soil.
The modified oedometer, developed by the authors, comprises of thin-wall oedometer ring instrumented with strain gauges to measure the lateral stresses evolving during the test.
The first part of this paper introduces the errors that arise during osmotic suction testing, concerning the device flexibility and PEG solution losses.
The second part of the paper highlights the calibration procedure for estimating lateral stresses in modified oedometer from instrumented strain gauges as well as introduces a correction for the temperature fluctuation.
Finally, the effect of triaxial cell flexibility on the volume change measured during osmotic suction controlled testing as well as temperature effect on volume change measurements were evaluated and correction procedures were introduced.
American Psychological Association (APA)
Abbas, Muhammad Fadil& al-Qadi, Tamir Y.& al-Shamrani, Muslih A.. 2017. Calibrations for volume change measurements using osmotic suction control technique. Housing and Building National Research Center Journal،Vol. 13, no. 1, pp.40-46.
https://search.emarefa.net/detail/BIM-777364
Modern Language Association (MLA)
Abbas, Muhammad Fadil…[et al.]. Calibrations for volume change measurements using osmotic suction control technique. Housing and Building National Research Center Journal Vol. 13, no. 1 (Apr. 2017), pp.40-46.
https://search.emarefa.net/detail/BIM-777364
American Medical Association (AMA)
Abbas, Muhammad Fadil& al-Qadi, Tamir Y.& al-Shamrani, Muslih A.. Calibrations for volume change measurements using osmotic suction control technique. Housing and Building National Research Center Journal. 2017. Vol. 13, no. 1, pp.40-46.
https://search.emarefa.net/detail/BIM-777364
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 45-46
Record ID
BIM-777364