Adjusting curing parameters for innovative and durable vegetable fibre-cement composites

Gloria Esther Urrea-Ceferino, Daman K. Panesar, Holmer Savastano

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    13 Citas (Scopus)

    Resumen

    This work adjusts curing parameters for innovative and durable vegetable fibre-cement composites produced by a slurry vacuum dewatering process. The raw materials used for the cementitious composite mix designs applied in this investigation include: Portland cement, ground silica as an inert filler and vegetable fibre reinforcement. The curing conditions were conducted on eight sets of samples studying the effects of: initial hydration duration (10 h or 24 h); accelerated carbonation exposure (0.035% or 20% of CO2 concentration); and accelerated aging tests (before and after 200 soak & dry cycles). The mechanical properties of cementitious composites subjected to eight different curing and aging conditions, with a statistical significance increase in carbonated composite strength that is attributed to the packing density of the mixture containing an inert filler (silica quartz).The use of unbleached pulp with silica as a mineral addition in combination with 10 h of initial hydration prior to CO2 curing is indicated to improve the efficiency of the operational steps in the carbonated fibre-cement industry.

    Idioma originalInglés
    Páginas (desde-hasta)121-133
    Número de páginas13
    PublicaciónCement and Concrete Composites
    Volumen103
    DOI
    EstadoPublicada - oct. 2019

    Nota bibliográfica

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    © 2019 Elsevier Ltd

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