Using neutron spectroscopy to measure soil-water retention at high suction ranges
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Using neutron spectroscopy to measure soil-water retention at high suction ranges. / Carnero-Guzman, Gonzalo G.; Gates, Will P.; Bouazza, Abdelmalek; Aldridge, Laurie P.; Bordallo, Heloisa N.
In: Canadian Geotechnical Journal, Vol. 56, No. 12, 01.01.2019, p. 1999-2003.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
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 - 2019/1/1
Y1 - 2019/1/1
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 - Geosynthetic clay liners
KW - High suction
KW - Water retention
UR - http://www.scopus.com/inward/record.url?scp=85075852748&partnerID=8YFLogxK
U2 - 10.1139/cgj-2017-0718
DO - 10.1139/cgj-2017-0718
M3 - Journal article
AN - SCOPUS:85075852748
VL - 56
SP - 1999
EP - 2003
JO - Canadian Geotechnical Journal
JF - Canadian Geotechnical Journal
SN - 0008-3674
IS - 12
ER -
ID: 232543067