What is the effect of adding carbon nanotubes to concrete mixes and how does this lead to self sensing concrete?

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Sivakumaran Wignarajah a.k.a Shiwa Kato

Carbon nanotubes added to cement composites can act as stress/strain sensors or vibration sensors (piezo-resistivity). You will be able to get more information from the following references:

1) Han et al. : A self-sensing carbon nanotube/cement composite for traffic monitoring, NANOTECHNOLOGY, Vol. 20 No. 44 (2009)

2) Xun Hu and Eil Kwon: Carbon nanotube based self-sensing concrete for pavement structural health monitoring (2012). This document is available in pdf format from, ntl.bts.gov/lib/45000/45000/45066/3789.pdf

Ahmed Nabil

Thank you very much Sivakumaran Wignarajah