title: A self-sensing carbon nanotube/cement composite for traffic monitoring.
abstract: In this paper, a self-sensing carbon nanotube (CNT)/cement composite is investigated for traffic monitoring. The cement composite is filled with multi-walled carbon nanotubes whose piezoresistive properties enable the detection of mechanical stresses induced by traffic flow. The sensing capability of the self-sensing CNT/cement composite is explored in laboratory tests and road tests. Experimental results show that the fabricated self-sensing CNT/cement composite presents sensitive and stable responses to repeated compressive loadings and impulsive loadings, and has remarkable responses to vehicular loadings. These findings indicate that the self-sensing CNT/cement composite has great potential for traffic monitoring use, such as in traffic flow detection, weigh-in-motion measurement and vehicle speed detection.
authors.affiliation: Department of Mechanical and Industrial Engineering, University of Minnesota Duluth, Duluth, MN 55812, USA.
authors.forename: Baoguo
authors.initials: B
authors.lastname: Han
authors.forename: Xun
authors.initials: X
authors.lastname: Yu
authors.forename: Eil
authors.initials: E
authors.lastname: Kwon