@inbook{9ffaa791b52149409f8a0e0769c36d00,
title = "Piezoresistivity of Carbon Black/Cement-Based Sensor Enhanced with Polypropylene Fibre",
abstract = "In this study, polypropylene (PP) was added to develop carbon black (CB)/cementitious composites as cement-based sensors. The mechanical properties and piezoresistivity were been experimentally investigated. The compressive strength slightly decreased, while the flexural strength was significantly increased with the increased amount of PP fibres. The improvement is mainly achieved by the reduced CB concentration in cement matrix and the excellent tensile strength of PP fibres. Under the cyclic compression, the piezoresistivity increased by three times for 0.4 wt% PP fibres filled CB/cementitious composite, regardless of the loading rates. The flexural stress sensing efficiency was considerably lower than that of compressive stress sensing, but it increased with the amount of PP fibres. Electrical conductivity increased with the amount of PP fibres, due to the enclosed CB nanoparticles and more conductive passages. Moreover, fitting formulas were proposed and used to evaluate the self-sensing capacity, with the attempts to apply cement-based sensors for structural health monitoring.",
keywords = "Carbon black, Cement-based sensor, Microstructure, Piezoresistivity, Polypropylene fibre",
author = "Wengui Li and Wenkui Dong and Shah, {Surendra P.}",
note = "Funding Information: Acknowledgements. All the authors appreciate the financial supports from the Australian Research Council (ARC), University of Technology Sydney Research Academic Program at Tech Lab (UTS RAPT), and University of Technology Sydney Tech Lab Blue Sky Research Scheme. Publisher Copyright: {\textcopyright} 2022, RILEM.",
year = "2022",
doi = "10.1007/978-3-030-83719-8_76",
language = "English (US)",
series = "RILEM Bookseries",
publisher = "Springer Science and Business Media B.V.",
pages = "889--899",
booktitle = "RILEM Bookseries",
}