TY - JOUR
T1 - A pressure-sensitive carbon black cement composite for traffic monitoring
AU - Monteiro, A.O.
AU - Loredo, A.
AU - Da Costa, Pedro M. F. J.
AU - Oeser, M.
AU - Cachim, P.B.
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: 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.
PY - 2017/8/17
Y1 - 2017/8/17
N2 - 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.
AB - 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.
UR - http://hdl.handle.net/10754/625740
UR - http://www.sciencedirect.com/science/article/pii/S0950061817316446
UR - http://www.scopus.com/inward/record.url?scp=85029704828&partnerID=8YFLogxK
U2 - 10.1016/j.conbuildmat.2017.08.053
DO - 10.1016/j.conbuildmat.2017.08.053
M3 - Article
SN - 0950-0618
VL - 154
SP - 1079
EP - 1086
JO - Construction and Building Materials
JF - Construction and Building Materials
ER -