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    Assessment of photocatalytic, superhydrophobic and self-cleaning properties on hot mix asphalts coated with TiO 2 and/or ZnO aqueous solutions

    ProjectNanoEcoBuild
    TitleAssessment of photocatalytic, superhydrophobic and self-cleaning properties on hot mix asphalts coated with TiO 2 and/or ZnO aqueous solutions
    Publication TypePapers in International Journals
    Year of Publication2018
    AuthorsRocha Segundo I., Ferreira C., Freitas, E.F., Carneiro J. A. O., Fernandes F., Júnior S. L., and Costa M. F. M.
    Abstract

    Photocatalytic, superhydrophobic and self-cleaning capabilities were promoted on AC 6 and AC 14 asphalt mixtures by spraying of TiO2 and/or ZnO. Initially, physicochemical and morphological properties of bitumen samples were evaluated by Fourier Transform Infrared Spectroscopy and Atomic Force Microscopy after the solution spraying of TiO2, ZnO and TiO2 ZnO. Then, to assure those capacities, Water Angle Contact and Photocatalytic Efficiency tests were carried out on both mixtures. Finally, mixtures were assessed mechanically through Indirect Tensile Strength. Photocatalytic, superhydrophobic and self-cleaning properties were guaranteed for AC 14 with TiO2 and TiO2 ZnO and AC 6 with TiO2 ZnO without deteriorations.

    JournalConstruction and Building Materials
    Volume166
    Pagination500-509
    Date Published2018-03-01
    PublisherElsevier
    ISSN0950-0618
    DOI10.1016/j.conbuildmat.2018.01.106
    KeywordsCoating, Pavements, photocatalytic, self-cleaning asphalt, superhydrophobic, TIO2, ZnO
    RightsembargoedAccess (1 Year)
    Peer reviewedyes
    Statuspublished
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    About CTAC

    The Centre for Territory, Environment and Construction (CTAC) is a research unit of the School of Engineering of University of Minho (UMinho), recognised by the “FCT – Fundação para a Ciência e Tecnologia” (Foundation for Science and Technology), associated to the Department of Civil Engineering (DEC), with whom it shares resources and namely human resources.

    Currently CTAC aggregates 25 researchers holding a PhD of which 20 are faculty professors of the Civil Engineering Department. Read more


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    Centro de Território, Ambiente e Construção
    Escola de Engenharia da Universidade do Minho
    Campus de Azurém
    4800-058 Guimarães, Portugal

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