Bond Behaviour Between Steel Rebars and Concrete Under Elevated Temperatures-Eccentric Pullout Test

Banoth, Ira and Agarwal, Anil (2022) Bond Behaviour Between Steel Rebars and Concrete Under Elevated Temperatures-Eccentric Pullout Test. In: Advances in Structural Mechanics and Applications. Springer Science and Business Media Deutschland GmbH, pp. 171-179.

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Abstract

Bond behaviour between rebar and concrete is studied at the elevated temperature of 20,100,200,300,400 and 500 ℃. The parameters considered are different types of diameters (12, 20 mm) of rebar and two different types of heating rates (2 ℃/min and ISO 834). Concrete compressive strength, 30 MPa is used. Pullout tests were conducted on a cubical specimen of size 200 × 200 × 200 mm with eccentrically embedded rebar. Pullout load is applied once desired temperature reaches at the interface. With the increase of temperature, bond strength reduces. Significant reduction of bond strength, in the case of heating rate followed by ISO fire curve, this may be due to large thermal gradients from concrete surface to the rebar interface, by following ISO heating rate. © 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.

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IITH Creators:
IITH CreatorsORCiD
Agarwal, Anilhttps://orcid.org/0000-0002-3902-4304
Item Type: Book Section
Uncontrolled Keywords: Bond strength; Concrete; Elevated temperature; Heating rate; Rebar
Subjects: Civil Engineering
Divisions: Department of Civil Engineering
Depositing User: . LibTrainee 2021
Date Deposited: 01 Aug 2022 05:04
Last Modified: 01 Aug 2022 05:04
URI: http://raiith.iith.ac.in/id/eprint/10027
Publisher URL: http://doi.org/10.1007/978-3-031-05509-6_14
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