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Title:
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Nanofibrillated cellulose (NFC) as a potential reinforcement for high performance cement mortar composites
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Author:
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Ardanuy Raso, Mònica; Claramunt Blanes, Josep; Arévalo Peces, Raquel; Parés Sabatés, Ferran; Aracri, Elisabetta; Vidal Lluciá, Teresa
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Tèxtil i Paperera; Universitat Politècnica de Catalunya. Departament d'Enginyeria Agroalimentària i Biotecnologia; Universitat Politècnica de Catalunya. CIPAGRAF - Grup de Recerca Paperer i Gràfic; Universitat Politècnica de Catalunya. TECTEX - Grup de Recerca en Tecnologia Tèxtil |
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Abstract:
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In this work, nanofibrillated cellulose (NFC) has been evaluated as a potential reinforcement for cement mortar composites. Two types of vegetable fibres with different composition and properties (cellulose content and microfibrillar angle), sisal, and cotton linters pulps, were initially characterized in order to assess their reinforcement capability. Sisal pulp was found to be most suitable as reinforcement for their brittle cementitious matrix. Nanofibrillated cellulose was produced by the application of a high intensity refining process of the sisal pulp. It was found that 6 hours of refining time was required to obtain the desired nanofibrillation of the fibers. Cement mortar composites reinforced with both the sisal fibers and the nanofibrillated cellulose were prepared, and the mechanical properties were determined under flexural test. The cement mortar composites reinforced with the nanofibrillated cellulose exhibited enhanced flexural properties, but lower values of fracture energy, than the ones reinforced with the conventional sisal fibres. |
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Abstract:
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Peer Reviewed |
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Subject(s):
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-Àrees temàtiques de la UPC::Edificació::Materials de construcció::Ciment
-Àrees temàtiques de la UPC::Enginyeria tèxtil ::Fibres tèxtils
-Nanofibrillated cellulose
-Cement mortar composites
-Ciment -- Assaigs de materials
-Cel·lulosa -- Aplicacions industrials |
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Rights:
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Document type:
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Article - Published version
Article |
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