Soil-Water Characteristic Curves of Clays

The drying suction – water content soil-water characteristic curves (SWCCs) of three clays (MX80 bentonite, yellow bentonite, and Speswhite kaolin) were experimentally determined using axis-translation, vapour equilibrium, and osmotic techniques. The shrinkage paths of the clays were established fro...

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Main Authors:	Snehasis, Tripathy, Mohd Yuhyi, Mohd Tadza, Hywel, Rhys Thomas
Format:	Article
Language:	English
Published:	Canadian Science Publishing 2014
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/10255/ http://umpir.ump.edu.my/id/eprint/10255/ http://umpir.ump.edu.my/id/eprint/10255/ http://umpir.ump.edu.my/id/eprint/10255/1/Soil-Water%20Characteristic%20Curves%20of%20Clays.pdf

id	ump-10255
recordtype	eprints
spelling	ump-102552018-02-06T01:44:09Z http://umpir.ump.edu.my/id/eprint/10255/ Soil-Water Characteristic Curves of Clays Snehasis, Tripathy Mohd Yuhyi, Mohd Tadza Hywel, Rhys Thomas TA Engineering (General). Civil engineering (General) The drying suction – water content soil-water characteristic curves (SWCCs) of three clays (MX80 bentonite, yellow bentonite, and Speswhite kaolin) were experimentally determined using axis-translation, vapour equilibrium, and osmotic techniques. The shrinkage paths of the clays were established from Clod tests. The suction – water content SWCCs in conjunction with the Clod test results enabled establishing the suction – degree of saturation SWCCs and further determination of the air-entry values (AEVs) of the clays. Chemical analyses of the polyethylene glycol (PEG) solutions in the osmotic tests revealed an imbalance of the osmotic suctions between the expelled and the retained salts on either side of semi-permeable membranes. A decrease in the water content due to an applied suction for clays with significant osmotic efficiencies was explained by two mechanisms. In mechanism 1, the water content decrease prior to the air entry is controlled by the interparticle repulsive pressure, and in mechanism 2, a decrease in the degree of saturation following the air entry is primarily due to the matric suction. The agreements between the AEVs of the clays determined based on the osmotic suctions corresponding to various applied suctions and that determined from the suction – degree of saturation SWCCs were found to be very good. Canadian Science Publishing 2014 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/10255/1/Soil-Water%20Characteristic%20Curves%20of%20Clays.pdf Snehasis, Tripathy and Mohd Yuhyi, Mohd Tadza and Hywel, Rhys Thomas (2014) Soil-Water Characteristic Curves of Clays. Canadian Geotechnical Journal, 51 (8). pp. 869-883. http://www.nrcresearchpress.com/doi/abs/10.1139/cgj-2013-0089#.VfD_PBGqqkp DOI: 10.1139/cgj-2013-0089
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Snehasis, Tripathy Mohd Yuhyi, Mohd Tadza Hywel, Rhys Thomas Soil-Water Characteristic Curves of Clays
description	The drying suction – water content soil-water characteristic curves (SWCCs) of three clays (MX80 bentonite, yellow bentonite, and Speswhite kaolin) were experimentally determined using axis-translation, vapour equilibrium, and osmotic techniques. The shrinkage paths of the clays were established from Clod tests. The suction – water content SWCCs in conjunction with the Clod test results enabled establishing the suction – degree of saturation SWCCs and further determination of the air-entry values (AEVs) of the clays. Chemical analyses of the polyethylene glycol (PEG) solutions in the osmotic tests revealed an imbalance of the osmotic suctions between the expelled and the retained salts on either side of semi-permeable membranes. A decrease in the water content due to an applied suction for clays with significant osmotic efficiencies was explained by two mechanisms. In mechanism 1, the water content decrease prior to the air entry is controlled by the interparticle repulsive pressure, and in mechanism 2, a decrease in the degree of saturation following the air entry is primarily due to the matric suction. The agreements between the AEVs of the clays determined based on the osmotic suctions corresponding to various applied suctions and that determined from the suction – degree of saturation SWCCs were found to be very good.
format	Article
author	Snehasis, Tripathy Mohd Yuhyi, Mohd Tadza Hywel, Rhys Thomas
author_facet	Snehasis, Tripathy Mohd Yuhyi, Mohd Tadza Hywel, Rhys Thomas
author_sort	Snehasis, Tripathy
title	Soil-Water Characteristic Curves of Clays
title_short	Soil-Water Characteristic Curves of Clays
title_full	Soil-Water Characteristic Curves of Clays
title_fullStr	Soil-Water Characteristic Curves of Clays
title_full_unstemmed	Soil-Water Characteristic Curves of Clays
title_sort	soil-water characteristic curves of clays
publisher	Canadian Science Publishing
publishDate	2014
url	http://umpir.ump.edu.my/id/eprint/10255/ http://umpir.ump.edu.my/id/eprint/10255/ http://umpir.ump.edu.my/id/eprint/10255/ http://umpir.ump.edu.my/id/eprint/10255/1/Soil-Water%20Characteristic%20Curves%20of%20Clays.pdf
first_indexed	2023-09-18T22:09:40Z
last_indexed	2023-09-18T22:09:40Z
_version_	1777414942847139840

Soil-Water Characteristic Curves of Clays

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