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    Role of Carbon Nanofiber on the Electrical Resistivity of Mortar under Compressive Load

    Role of Carbon Nanofiber on the Electrical Resistivity of Mortar under Compressive Load

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    A nanomodified cement consisting of particles with in situ synthesized carbon nanofibers was developed to introduce a strong load-sensing capability of the hydrated binder matrix. The material was produced using chemical vapor deposition. The nanomodified cement contained 2.71 wt% of carbon nanofibers (CNFs). The electrical properties of the composite were determined. Several mortar samples were prepared by partially substituting ordinary Portland cement with 2, 4, 6, 8, and 10 wt% of the nanomodified cement. Additionally an ordinary Portland cement mortar was used as reference. The results show that the strongest piezoresistive response and therefore the best load-sensing was obtained for the mortar containing the highest amount of CNFs. This mortar contained 10 wt% of nanomodified cement. The fractional change in electrical resistivity of this mortar was 82% and this mortar had a compressive strength of 28 MPa.

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    Titel :

    Role of Carbon Nanofiber on the Electrical Resistivity of Mortar under Compressive Load

    Weitere Titelangaben:

    Transportation Research Record

    Beteiligte:
    Buasiri, Thanyarat (Autor:in) / Habermehl-Cwirzen, Karin (Autor:in) / Krzeminski, Lukasz (Autor:in) / Cwirzen, Andrzej (Autor:in)
    Erschienen in:

    Transportation Research Record: Journal of the Transportation Research Board ; 2675 , 9 ; 32-37

    Erscheinungsdatum :

    2020-09-09

    ISSN :

    2169-4052 , 0361-1981

    DOI :

    https://doi.org/10.1177/0361198120947417

    Medientyp :

    Aufsatz (Zeitschrift)

    Format :

    Elektronische Ressource

    Sprache :

    Englisch

    Lizenzbestimmungen :

    http://creativecommons.org/licenses/by/4.0/

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