Inductive method for assessing the amount and orientation of steel fibers in concrete
journal contributionposted on 22.03.2018, 12:06 by Josep M. Torrents, Ana Blanco-AlvarezAna Blanco-Alvarez, Pablo Pujadas, Antonio Aguado, Pablo Juan-Garcia, Miguel Angel Sanchez-Moragues
Steel fibers are ferromagnetic and they have the property of altering the magnetic field around them. This paper discusses a method and gives a practical example to measure, non-destructively, the amount and orientation of fibers from cubic concrete specimens (150 mm). This is possible because the fibers affect inductance of a sensor (an inductive coil) that is wrapped around the specimen. © 2012 RILEM.
This work was supported by the companies FCC, S.A. (HATCONS Project), PROMSA, ESCOFET and CEMEX for their partial financing and their participation in the experimental campaigns carried out. The authors also wish to thank the Ministry of Science and Innovat ion (MCINN) on the grounds of the CONSFIB project (reference: BIA 1010-17478). The second and the third authors wish to express their acknowledgement to the Comissionat per a Universitats del DIUE de la Generalitat de Catalunya i del Fons Social Europeu for the FI grant and to the Polytechnic University of Catalonia for the FPI- UPC grant, respectively.
- Architecture, Building and Civil Engineering