Concrete setting and hardening monitoring using a novel graphene-based sensor
Paper in proceedings, 2017

© 2017 Chinese Society of Theoretical and Applied Mechanics. All Rights Reserved. This paper presents the procedure towards the development of a durable structural sensor based on graphene and other carbon fillers, for the monitoring of structural performance of concrete. The sensor captures electrical resistivity as a strength development and durability index during the whole service life of concrete. To date, performance monitoring systems usually fail in the long-run before the failure of the actual structure. The proposed sensor is embedded in the interrogated structure and ensures sustainable consolidation via appropriate physico-chemical adherence and mechanical interlocking. This allows for an efficient performance monitoring 'build-up' expected to surpass the service life of the parent concrete structure. The effects of different concentrations of graphene and other fillers on the electrical properties of concrete were studied. After an initial investigation to select the appropriate synthesis, the ability of the sensor to monitor the development of resistivity during setting and hardening was tested and the results are presented herein.

Author

Sotirios Grammatikos

Chalmers, Civil and Environmental Engineering, Building Technology

Ingemar Löfgren

Thomas Concrete Group AB

Chalmers, Civil and Environmental Engineering, Structural Engineering

Luping Tang

Chalmers, Civil and Environmental Engineering, Building Technology

L. Ye

SHT Smart High-Tech

Johan Liu

School of Mechanical and Automation Engineering

ICF 2017 - 14th International Conference on Fracture

Vol. 2 1204-1205

14th International Conference on Fracture, ICF 2017
Rhodes, Greece,

Subject Categories

Geotechnical Engineering

Other Engineering and Technologies not elsewhere specified

Building Technologies

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Latest update

7/15/2019