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Title: Expedited soil–water characteristic curve tests using combined centrifuge and chilled mirror techniques
Authors: Rahardjo, Harianto
Nong, Xue Feng
Lee, D. T. T.
Leong, Eng Choon
Fong, Y. K.
Keywords: Unsaturated Soil
DRNTU::Engineering::Civil engineering
Issue Date: 2017
Source: Rahardjo, H., Nong, X. F., Lee, D. T. T., Leong, E. C., & Fong, Y. K. (2018). Expedited Soil–Water Characteristic Curve Tests Using Combined Centrifuge and Chilled Mirror Techniques. Geotechnical Testing Journal, 41(1), 207-217. doi : 10.1520/GTJ20160275
Series/Report no.: Geotechnical Testing Journal
Abstract: A soil–water characteristic curve (SWCC) shows soil’s ability to provide water availability and the rate that this water can be transmitted and replenished. However, the current commonly used method to determine the SWCCs of soils (the axis-translation method) is time consuming. This study combines two relatively new but established methods (centrifuge and chilled mirror psychrometer) to find a rapid and reliable way to obtain the SWCC for a large range of suctions. For comparison, the SWCC was also independently measured using the axis-translation method (Tempe cell and pressure plate). The comparisons show that the SWCC parameters (air-entry values, residual suctions, and slope of SWCC) determined using the combined centrifuge and chilled mirror psychrometer methods agree well with the same SWCC parameters determined using the Tempe cell and pressure plate methods (axis-translation method). At the same time, the time taken was cut down from a few months for the axis-translation method to about two days for the combined centrifuge and chilled mirror psychrometer.
ISSN: 0149-6115
DOI: 10.1520/GTJ20160275
Rights: © 2018 ASTM International. This paper was published in Geotechnical Testing Journal and is made available as an electronic reprint (preprint) with permission of ASTM International. The published version is available at: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:CEE Journal Articles

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