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Micropore size analysis in hydrated cement paste by NMR
Institution:1. Laboratoire « Céramiques et matériaux minéraux », UMR 7574 du CNRS, École supérieure de physique et de chimie industrielles, 10, rue Vauquelin, 75005 Paris, France;2. Laboratoire de physique de la matière condensée, UMR 7643 du CNRS, École polytechnique, 91128 Palaiseau cedex, France;1. CNRS UMR 6282 biogéosciences, université de Bourgogne Franche-Comté, 6, boulevard Gabriel, 21000 Dijon, France;2. CNRS UMR 6118 géosciences Rennes, université de Rennes 1, campus de Beaulieu, bât. 15, 263, avenue du Général-Leclerc, 35042 Rennes, France;3. European Synchrotron Radiation Facility, 71, avenue des Martyrs, 38000 Grenoble, France;4. Groupement d’étude et de contrôle des variétés et semences (GIP-GEVES), Le Magneraud, 17700 Surgères, France;1. Multi Disaster Countermeasure Organization, Korea Institute of Geoscience and Mineral Resources (KIGAM), 124 Gwahang-no, Yuseong-gu, Daejeon 34132, South Korea;2. Department of Civil Engineering, Pusan National University (PNU), Busan 46241, South Korea;3. Department of Civil Engineering Geotechnical Engineering Group, Yokohama National University (YNU), Yokohama, Japan;1. Faculty of Civil Engineering, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland;2. Laboratoire de Tribologie et Dynamique des Systèmes, École Centrale de Lyon, 69134 Écully, France;1. Department of Anaesthesiology, Hospital Foch, University of Versailles, Saint-Quentin-en-Yvelines, 55, avenue de Paris, Versailles 78000, France;2. Department of Anaesthesiology, Versailles Private Hospital, 9, rue du Parc de Clagny, Versailles 78000, France;1. Department of Civil & Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, 117576 Singapore, Singapore;2. Department of Civil Engineering, Stony Brook University, Stony Brook, NY 11794, USA;3. Division of Architecture and Urban Design, Incheon National University, Incheon 22012, South Korea;1. State Key Laboratory of Molecular Reaction Dynamics and Center for Theoretical Computational Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China;2. University of Chinese Academy of Sciences, Beijing 100049, PR China;3. Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
Abstract:We present a time evolution of 1H spin-lattice relaxation rates in the laboratory (1/T1) and in the rotating (1/T) frame of a synthetic cement paste. The typical results found for both rates allow us to follow the main hydration stages of the cement paste and the refinement of its microporosity. In particular the texturation of the porosity and the structuration of the surface of the material are evidenced on two model cement pastes. An interpretation in terms of fractal size distribution is considered as well as the effect of the curing temperature.
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