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Strain field of reinforced concrete under accelerated corrosion by digital image correlation technique

Jin, Z; Bai, Y; Zhao, T; Jiang, Y; Chen, Y; (2016) Strain field of reinforced concrete under accelerated corrosion by digital image correlation technique. In: Proceedings of the International Workshop on Innovation in Low-carbon Cement & Concrete Technology 2016. (pp. pp. 139-148). : London, UK. Green open access

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Abstract

The strain field evolution and crack pattern of reinforced concrete attacked by accelerated corrosion have been studied using strain gauges and the digital image correlation (DIC) technique. Results show that there was good consistency between DIC and the classical strain gauges about the strain field evolution of corroding reinforced concrete. Moreover, the strain field and crack behavior of reinforced concrete could be tracked by DIC image pattern intuitively and its stress field could also be calculated by DIC quantitatively. However, the micro-deformation of reinforced concrete could be obtained by DIC because of its test accuracy. When reinforced concrete was attacked by accelerated corrosion, the tension stress was applied to the upper zone of reinforced bar, and the compressive stress was applied to its bottom zone. And the brittle crack was mainly a failure model of reinforced concrete.

Type: Proceedings paper
Title: Strain field of reinforced concrete under accelerated corrosion by digital image correlation technique
Event: International Workshop on Innovation in Low-carbon Cement & Concrete Technology - 2016
Location: London, UK
Dates: 21 September 2016 - 24 September 2016
Open access status: An open access version is available from UCL Discovery
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: reinforced concrete; accelerated corrosion; DIC; strain field; crack
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng
URI: https://discovery.ucl.ac.uk/id/eprint/1523345
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