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(1)H, (23)Na and (35)Cl Imaging in Cementitious Materials with NMR

A set-up especially designed for semi-simultaneous measurements of (1)H, (23)Na and (35)Cl in ordinary cementitious materials using nuclear magnetic resonance was built. This setup makes use of the main field of a whole body magnetic resonance imaging system (Philips Intera), which has allowed us to...

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Detalles Bibliográficos
Autores principales: Pel, L., Donkers, P. A. J., Kopinga, K., Noijen, J. J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Vienna 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4761373/
https://www.ncbi.nlm.nih.gov/pubmed/26941481
http://dx.doi.org/10.1007/s00723-015-0752-6
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author Pel, L.
Donkers, P. A. J.
Kopinga, K.
Noijen, J. J.
author_facet Pel, L.
Donkers, P. A. J.
Kopinga, K.
Noijen, J. J.
author_sort Pel, L.
collection PubMed
description A set-up especially designed for semi-simultaneous measurements of (1)H, (23)Na and (35)Cl in ordinary cementitious materials using nuclear magnetic resonance was built. This setup makes use of the main field of a whole body magnetic resonance imaging system (Philips Intera), which has allowed us to combine two measurement setups into one, i.e., a (23)Na/(35)Cl and a (1)H insert. This 1.5 T field was chosen as a compromise between the signal-to-noise ratio of the spin-echo signal, which increases at higher frequencies, and the line broadening due to the presence of magnetic impurities of these materials, which leads to a decrease of the resolution at higher magnetic fields. The preliminary experiments show that this setup can be used to the study the interaction of different types of ions with cementitious materials. One-dimensional profiles of the moisture and dissolved ions can be measured with a spatial resolution of about 2 mm for (1)H, 6 mm for (23)Na and 9 mm for (35)Cl.
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spelling pubmed-47613732016-03-01 (1)H, (23)Na and (35)Cl Imaging in Cementitious Materials with NMR Pel, L. Donkers, P. A. J. Kopinga, K. Noijen, J. J. Appl Magn Reson Article A set-up especially designed for semi-simultaneous measurements of (1)H, (23)Na and (35)Cl in ordinary cementitious materials using nuclear magnetic resonance was built. This setup makes use of the main field of a whole body magnetic resonance imaging system (Philips Intera), which has allowed us to combine two measurement setups into one, i.e., a (23)Na/(35)Cl and a (1)H insert. This 1.5 T field was chosen as a compromise between the signal-to-noise ratio of the spin-echo signal, which increases at higher frequencies, and the line broadening due to the presence of magnetic impurities of these materials, which leads to a decrease of the resolution at higher magnetic fields. The preliminary experiments show that this setup can be used to the study the interaction of different types of ions with cementitious materials. One-dimensional profiles of the moisture and dissolved ions can be measured with a spatial resolution of about 2 mm for (1)H, 6 mm for (23)Na and 9 mm for (35)Cl. Springer Vienna 2016-02-01 2016 /pmc/articles/PMC4761373/ /pubmed/26941481 http://dx.doi.org/10.1007/s00723-015-0752-6 Text en © The Author(s) 2016 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Article
Pel, L.
Donkers, P. A. J.
Kopinga, K.
Noijen, J. J.
(1)H, (23)Na and (35)Cl Imaging in Cementitious Materials with NMR
title (1)H, (23)Na and (35)Cl Imaging in Cementitious Materials with NMR
title_full (1)H, (23)Na and (35)Cl Imaging in Cementitious Materials with NMR
title_fullStr (1)H, (23)Na and (35)Cl Imaging in Cementitious Materials with NMR
title_full_unstemmed (1)H, (23)Na and (35)Cl Imaging in Cementitious Materials with NMR
title_short (1)H, (23)Na and (35)Cl Imaging in Cementitious Materials with NMR
title_sort (1)h, (23)na and (35)cl imaging in cementitious materials with nmr
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4761373/
https://www.ncbi.nlm.nih.gov/pubmed/26941481
http://dx.doi.org/10.1007/s00723-015-0752-6
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