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Damage and Stress Detection (Self-Sensing) in Concrete with Multi-Walled Carbon Nanotubes †

RISE Research Institutes of Sweden, RISE Built environment, Brinellgatan 4, 50115 Borås, Sweden
Author to whom correspondence should be addressed.
Presented at the 1st International Conference on Smart Materials for Sustainable Construction—SMASCO 2019, Luleå, Sweden, 10–12 December 2019.
Proceedings 2019, 34(1), 17;
Published: 18 November 2019


Within EU project LightCoce (Building an Ecosystem for the upscaling of lightweight multi-functional concrete and ceramic materials and structures), RISE will be running a Pilot Line to allow the design and development of materials, elements of Cellular Lightweight Concrete (CLC) and/or lightweight composite elements with improved functionalities. One of these functionalities is self-sensing (damage and stress detection), achieved by reducing the natural concrete’s resistance with incorporation of the multi-walled carbon nanotubes (MWCNTs). By applying a small electric current in the outer electrodes attached to the concrete and measuring voltage on the inner electrodes the resistivity of the material can be easily calculated. The resistivity changes may indicate cracking and changing stress levels. In our study concrete was enhanced with various amounts of MWCNTs and tested in cyclic compression. The change of stress levels was clearly visible on the resistivity changes. After that, ultrahigh-performance concrete (UHPC) panels with two types of textile reinforcement (GFRP and CFRP) were tested in cyclic 4-point bending to investigate concretes sensitivity for multiple cracking. The resistivity measurement was able to capture multiple discrete cracks and the material degradation at micro-level due to fatigue.

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MDPI and ACS Style

Suchorzewski, J.; Prieto, M.; Mueller, U.; Malaga, K. Damage and Stress Detection (Self-Sensing) in Concrete with Multi-Walled Carbon Nanotubes. Proceedings 2019, 34, 17.

AMA Style

Suchorzewski J, Prieto M, Mueller U, Malaga K. Damage and Stress Detection (Self-Sensing) in Concrete with Multi-Walled Carbon Nanotubes. Proceedings. 2019; 34(1):17.

Chicago/Turabian Style

Suchorzewski, Jan, Miguel Prieto, Urs Mueller, and Katarina Malaga. 2019. "Damage and Stress Detection (Self-Sensing) in Concrete with Multi-Walled Carbon Nanotubes" Proceedings 34, no. 1: 17.

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