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Efecto del grado de fibrilación sobre las propiedades mecánicas de morteros de cemento reforzados con fibras vegetales

Authors: Ardanuy Raso, Mònica; Claramunt Blanes, Josep; Arévalo Peces, Raquel; García Hortal, José Antonio;

Efecto del grado de fibrilación sobre las propiedades mecánicas de morteros de cemento reforzados con fibras vegetales

Abstract

En este trabajo se han llevado a cabo la preparación y caracterización de nuevos compuestos a base de morteros de cemento reforzados con fibras celulósicas nanofibriladas. El efecto del grado de fibrilación de las fibras sobre las propiedades mecánicas de los composites resultantes se presenta y analiza en base al tamaño final del refuerzo obtenido según la intensidad del tratamiento mecánico aplicado. Para ello se ha partido de fibras de sisal que han sido sometidas a un pulpeado mecánico suave para obtener las pulpas convencionales y a un pulpeado mecánico muy intenso para obtener celulosa nanofibrilada. Las pastas obtenidas han sido incorporadas y dispersadas homogéneamente en morteros de cemento, para posteriormente curar los compuestos durante 28 días. Finalmente se han determinado las propiedades mecánicas de los compuestos con ensayos de flexión. Los resultados indican como las fibras con un alto grado de fibrilación conducen a compuestos con un mayor módulo y resistencia comparados con los obtenidos con las fibras que únicamente han sido sometidas a un pulpeado mecánico suave.

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Spain
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Keywords

Materials compostos -- Propietats mecàniques, Composite materials--Mechanical properties, Àrees temàtiques de la UPC::Enginyeria tèxtil ::Fibres tèxtils::Fibres naturals, Cellulose fibers, Àrees temàtiques de la UPC::Enginyeria dels materials::Materials compostos, :Enginyeria dels materials::Materials compostos [Àrees temàtiques de la UPC], :Enginyeria tèxtil ::Fibres tèxtils::Fibres naturals [Àrees temàtiques de la UPC], Fibres vegetals

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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