Materials Today: Proceedings

Electrical Properties of Cement-based Composites Containing Carbon Black Particles

Electrical Properties of Cement-based Composites Containing Carbon Black Particles 
Andre O. Monteiro, P.B. Cachim, Pedro M.F.J. Costa 
Materials Today: Proceedings, 2, 193, (2015)
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​Conference Paper
Andre O. Monteiro, P.B. Cachim, Pedro M.F.J. Costa
Cement-besd composites; Carbon black; Electical resistivity; Piezoresistivity; Conductive concrete; Sensors
2015
The electrical properties of cement-based composites doped with carbon black nanoparticles (CB) are discussed. Several CB concentrations were considered and tested under compressive load whilst the resistivity variation was read in tandem. The aim of evaluating stress in function of the electrical resistivity is to study the potential of these materials for self-monitoring applications in civil infrastructures. Results demonstrate a resistivity decrease followed by an increase of the stress sensitivity when increasing the CB amount in the mixture. © 2015 Elsevier Ltd.​​