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

Version 2 2024-06-05, 02:59
Version 1 2020-01-30, 14:43
journal contribution
posted on 2024-06-05, 02:59 authored by GG Carnero-Guzman, Will GatesWill Gates, A Bouazza, Laurie AldridgeLaurie Aldridge, HN Bordallo
© 2019, Canadian Science Publishing. All rights reserved. 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.

History

Journal

Canadian Geotechnical Journal

Volume

56

Pagination

1999-2003

Location

Ottawa, Ont.

ISSN

0008-3674

eISSN

1208-6010

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Issue

12

Publisher

Canadian Science Publishing