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Title: A pulsed field gradient and NMR imaging investigations of the water retention mechanism by cellulose ethers in mortars

Abstract

The study presented in this paper is devoted to improve the knowledge on the influence of cellulose ethers (CE) on the freshly-mixed mortars water retention. Indeed, this crucial property is the most important imparted by these polysaccharides. One of the assumptions proposed to explain this phenomenon is that CE acts as diffusion barrier to the water. To test this hypothesis, the CE effect on the self-diffusion coefficient of water in solution and on the water mobility between two fresh cement pastes was studied by Nuclear Magnetic Resonance. CE does not significantly modify the water self-diffusion coefficient in CE solution or in admixed cement pastes. Moreover the interdiffusion imaging experiments demonstrated that the water diffusion at the paste/paste interface is not affected by the presence of cellulosic admixture.

Authors:
 [1];  [2];  [3]; ;  [1]; ;  [4]
  1. Ecole Nationale Superieure des Mines de Saint-Etienne, Centre SPIN, LPMG UMR 5148, 158 cours Fauriel, F-42023 Saint-Etienne Cedex 2 (France)
  2. Centre de la Recherche sur la Matiere Divisee, CNRS-Universite d'Orleans, UMR 6619, 1b rue de la Ferollerie, F-45071 Orleans Cedex 2 (France)
  3. Laboratoire de Physico-chimie des Polymeres et Milieux Disperses, ESPCI ParisTech, 10 rue Vauquelin, F-75231 Paris Cedex 05 and Universite Paris Est - LCPC, 58 boulevard Lefebvre, 75732 Paris cedex 15 (France)
  4. Universite Paris-Est, Centre Scientifique et Technique du Batiment, Departement Enveloppe et Revetements/Division Enduits, Mortiers et Colles, 84 avenue Jean Jaures, F-77447 Marne-la-Vallee Cedex 2 (France)
Publication Date:
OSTI Identifier:
21484503
Resource Type:
Journal Article
Journal Name:
Cement and Concrete Research
Additional Journal Information:
Journal Volume: 40; Journal Issue: 9; Other Information: DOI: 10.1016/j.cemconres.2010.04.001; PII: S0008-8846(10)00101-8; Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Journal ID: ISSN 0008-8846
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; CELLULOSE; CEMENTS; DIFFUSION BARRIERS; ETHERS; MORTARS; NMR IMAGING; NUCLEAR MAGNETIC RESONANCE; RETENTION; SELF-DIFFUSION; SOLUTIONS; WATER; BUILDING MATERIALS; CARBOHYDRATES; DIAGNOSTIC TECHNIQUES; DIFFUSION; DISPERSIONS; HOMOGENEOUS MIXTURES; HYDROGEN COMPOUNDS; MAGNETIC RESONANCE; MATERIALS; MIXTURES; ORGANIC COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; OXYGEN COMPOUNDS; POLYSACCHARIDES; RESONANCE; SACCHARIDES

Citation Formats

Patural, Laetitia, Porion, Patrice, Van Damme, Henri, Govin, Alexandre, Grosseau, Philippe, Ruot, Bertrand, and Deves, Olivier. A pulsed field gradient and NMR imaging investigations of the water retention mechanism by cellulose ethers in mortars. United States: N. p., 2010. Web. doi:10.1016/j.cemconres.2010.04.001.
Patural, Laetitia, Porion, Patrice, Van Damme, Henri, Govin, Alexandre, Grosseau, Philippe, Ruot, Bertrand, & Deves, Olivier. A pulsed field gradient and NMR imaging investigations of the water retention mechanism by cellulose ethers in mortars. United States. https://doi.org/10.1016/j.cemconres.2010.04.001
Patural, Laetitia, Porion, Patrice, Van Damme, Henri, Govin, Alexandre, Grosseau, Philippe, Ruot, Bertrand, and Deves, Olivier. 2010. "A pulsed field gradient and NMR imaging investigations of the water retention mechanism by cellulose ethers in mortars". United States. https://doi.org/10.1016/j.cemconres.2010.04.001.
@article{osti_21484503,
title = {A pulsed field gradient and NMR imaging investigations of the water retention mechanism by cellulose ethers in mortars},
author = {Patural, Laetitia and Porion, Patrice and Van Damme, Henri and Govin, Alexandre and Grosseau, Philippe and Ruot, Bertrand and Deves, Olivier},
abstractNote = {The study presented in this paper is devoted to improve the knowledge on the influence of cellulose ethers (CE) on the freshly-mixed mortars water retention. Indeed, this crucial property is the most important imparted by these polysaccharides. One of the assumptions proposed to explain this phenomenon is that CE acts as diffusion barrier to the water. To test this hypothesis, the CE effect on the self-diffusion coefficient of water in solution and on the water mobility between two fresh cement pastes was studied by Nuclear Magnetic Resonance. CE does not significantly modify the water self-diffusion coefficient in CE solution or in admixed cement pastes. Moreover the interdiffusion imaging experiments demonstrated that the water diffusion at the paste/paste interface is not affected by the presence of cellulosic admixture.},
doi = {10.1016/j.cemconres.2010.04.001},
url = {https://www.osti.gov/biblio/21484503}, journal = {Cement and Concrete Research},
issn = {0008-8846},
number = 9,
volume = 40,
place = {United States},
year = {Wed Sep 15 00:00:00 EDT 2010},
month = {Wed Sep 15 00:00:00 EDT 2010}
}