Title: A study on strain sensing property for carbon fibre-based RC beams without stirrups

Authors: Arvind Kumar Cholker; Manzoor Ahmad Tantray

Addresses: Department of Civil Engineering, National Institute of Technology, Srinagar-190006, J&K, India ' Department of Civil Engineering, National Institute of Technology, Srinagar-190006, J&K, India

Abstract: This paper analyses strain sensing property and structural behaviour of carbon fibre-based concrete (CFBC) beams under four point loading. Three RC beams having varying reinforcement ratios and constant dimensions have been casted with carbon fibre-based concrete at top and bottom surface in mid span for a length of 350 mm and depth of 55.5 mm. Carbon fibre-based concrete was used for evaluating strain sensing property of RC beam under four point testing and to know its effect on structural properties of reinforced concrete (RC) beam. The obtained results of fractional change in electrical resistance at compression and tension side were quite similar to that of strain in the beams at compression and tension surface. Along with strain sensing test structural properties of the tested beams are reported in this paper. As there was no transverse reinforcement provided, all the beams failed due to shear failure.

Keywords: carbon fibres; electrical properties; health monitoring; shear; self-compacting concrete.

DOI: 10.1504/IJSTRUCTE.2021.114261

International Journal of Structural Engineering, 2021 Vol.11 No.2, pp.127 - 146

Received: 12 Jun 2019
Accepted: 11 May 2020
Published online: 15 Apr 2021 *

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