Using neutron spectroscopy to measure soil-water retention at high suction ranges

Gonzalo G. Carnero-Guzman; Will P. Gates; Abdelmalek Bouazza; Laurie P. Aldridge; Heloisa N. Bordallo

doi:10.1139/cgj-2017-0718

Using neutron spectroscopy to measure soil-water retention at high suction ranges

Gonzalo G. Carnero-Guzman, Will P. Gates, Abdelmalek Bouazza, Laurie P. Aldridge, Heloisa N. Bordallo

Xray and Neutron Science

3 Citations (Scopus)

Abstract

Laboratory determination of water retention curves for geosynthetic clay liners (GCLs) and their bentonite components are time-consuming, especially for high suction ranges. This paper explores the potential use of neutron spectroscopy as a useful method to assess the water retention properties of montmorillonite at suction levels >10 MPa for GCL studies. The results from neutron spectroscopy are in good agreement with traditional methods when assessing the water retention of bentonite and GCLs. Additionally, the primary advantage of neutron scattering is that, contrary to conventional methods, water populations within the clay matrix, such as bulk-like water, confined water, and structure OH, are observed and can be quantified independently.

Original language	English
Journal	Canadian Geotechnical Journal
Volume	56
Issue number	12
Pages (from-to)	1999-2003
ISSN	0008-3674
DOIs	https://doi.org/10.1139/cgj-2017-0718
Publication status	Published - Dec 2019

Keywords

bentonite
water retention
high suction
geosynthetic clay liners

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10.1139/cgj-2017-0718

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title = "Using neutron spectroscopy to measure soil-water retention at high suction ranges",

abstract = "Laboratory determination of water retention curves for geosynthetic clay liners (GCLs) and their bentonite components are time-consuming, especially for high suction ranges. This paper explores the potential use of neutron spectroscopy as a useful method to assess the water retention properties of montmorillonite at suction levels >10 MPa for GCL studies. The results from neutron spectroscopy are in good agreement with traditional methods when assessing the water retention of bentonite and GCLs. Additionally, the primary advantage of neutron scattering is that, contrary to conventional methods, water populations within the clay matrix, such as bulk-like water, confined water, and structure OH, are observed and can be quantified independently.",

keywords = "bentonite, water retention, high suction, geosynthetic clay liners",

author = "Carnero-Guzman, {Gonzalo G.} and Gates, {Will P.} and Abdelmalek Bouazza and Aldridge, {Laurie P.} and Bordallo, {Heloisa N.}",

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T1 - Using neutron spectroscopy to measure soil-water retention at high suction ranges

AU - Carnero-Guzman, Gonzalo G.

AU - Gates, Will P.

AU - Bouazza, Abdelmalek

AU - Aldridge, Laurie P.

AU - Bordallo, Heloisa N.

PY - 2019/12

Y1 - 2019/12

N2 - Laboratory determination of water retention curves for geosynthetic clay liners (GCLs) and their bentonite components are time-consuming, especially for high suction ranges. This paper explores the potential use of neutron spectroscopy as a useful method to assess the water retention properties of montmorillonite at suction levels >10 MPa for GCL studies. The results from neutron spectroscopy are in good agreement with traditional methods when assessing the water retention of bentonite and GCLs. Additionally, the primary advantage of neutron scattering is that, contrary to conventional methods, water populations within the clay matrix, such as bulk-like water, confined water, and structure OH, are observed and can be quantified independently.

AB - Laboratory determination of water retention curves for geosynthetic clay liners (GCLs) and their bentonite components are time-consuming, especially for high suction ranges. This paper explores the potential use of neutron spectroscopy as a useful method to assess the water retention properties of montmorillonite at suction levels >10 MPa for GCL studies. The results from neutron spectroscopy are in good agreement with traditional methods when assessing the water retention of bentonite and GCLs. Additionally, the primary advantage of neutron scattering is that, contrary to conventional methods, water populations within the clay matrix, such as bulk-like water, confined water, and structure OH, are observed and can be quantified independently.

KW - bentonite

KW - water retention

KW - high suction

KW - geosynthetic clay liners

U2 - 10.1139/cgj-2017-0718

DO - 10.1139/cgj-2017-0718

M3 - Journal article

SN - 0008-3674

VL - 56

SP - 1999

EP - 2003

JO - Canadian Geotechnical Journal

JF - Canadian Geotechnical Journal

IS - 12

ER -

Using neutron spectroscopy to measure soil-water retention at high suction ranges

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Keywords

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