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    A pressure-sensitive carbon black cement composite for traffic monitoring

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    Type
    Article
    Authors
    Monteiro, A.O.
    Loredo, A.
    Da Costa, Pedro M. F. J. cc
    Oeser, M.
    Cachim, P.B.
    KAUST Department
    Material Science and Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2017-08-17
    Online Publication Date
    2017-08-17
    Print Publication Date
    2017-11
    Permanent link to this record
    http://hdl.handle.net/10754/625740
    
    Metadata
    Show full item record
    Abstract
    Recent advances in nanotechnology have guided the development of a new generation of multifunctional construction materials. An example of this are cement-based composites, some of which can be used not just to pave roads but also to monitor them. A cement composite, integrating a carbon black (CB) filler, was used as a piezoresistive sensor to identify different cyclic compressive loadings, at temperatures ranging from 15°C to 45°C. The mechanical essays were performed under realistic conditions using 600cm3 specimens and uniaxial loads typical of automobile traffic. A linear and reversible pressure-sensing performance was found with gauge factors ranging from 40 to 60. Overall, these results show that CB/cement composites can act as stress-sensitive materials for traffic monitoring.
    Citation
    Monteiro AO, Loredo A, Costa PMFJ, Oeser M, Cachim PB (2017) A pressure-sensitive carbon black cement composite for traffic monitoring. Construction and Building Materials 154: 1079–1086. Available: http://dx.doi.org/10.1016/j.conbuildmat.2017.08.053.
    Sponsors
    AOM acknowledges support from the Portuguese Foundation of Science and Technology FCT with a PhD scholarship (SFRH/BD/84644/2012), the institute for highway engineering (ISAC) of the University of Aachen (RWTH) for scientific collaboration and the Eng. Manfred Knispel for his interest and technical support. AL thanks a grant from the Visiting Student Research Program at KAUST – Saudi Arabia. PMFJC is grateful to KAUST for financial support (BAS/1/1346-01-01). The authors acknowledge Orion Engineered Carbons for the carbon black supply.
    Publisher
    Elsevier BV
    Journal
    Construction and Building Materials
    DOI
    10.1016/j.conbuildmat.2017.08.053
    Additional Links
    http://www.sciencedirect.com/science/article/pii/S0950061817316446
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.conbuildmat.2017.08.053
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Material Science and Engineering Program

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