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Effect of fatigue loading on bonding shear strength at the interface between two layers concrete

Ali, Maisarah and Tsuchiya, Itsuo and Matsui, Shigayuki (1999) Effect of fatigue loading on bonding shear strength at the interface between two layers concrete. Journal of Structural Engineering, 45A. 1157--1164. ISSN 0733-9445

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Abstract

In Japan,one of the methods to repair and strength concrete bridge decks is the Thickness Increasing Method where a thin new concrete layer is cast on top or bottom of the existing concrete slab. After the repair work has been completed the bridge is open to traffic and the bonded interface is subjected to normal and shear stresses from the traffic. Torque stress were carried out on beam specimens to evaluate the bonding shear strength at the interface between new and old concrete after they were subjected to fatigue loading. From the experiments, a clear relationship between stress level at various specimens' positions and the bonding shear strength after the application of fatigue loading could not obtained. However, a trend of bonding shear strength after the application of fatigue loading could be obtained. The higher magnitude of the load and cycles of fatigue loading the more the reduction in bonding shear strength occurs.

Item Type: Article (Journal)
Additional Information: 4627/8668
Uncontrolled Keywords: Bonding shear strength, new and old concrete, interface, torque
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA630 Structural engineering (General)
Kulliyyahs/Centres/Divisions/Institutes: Kulliyyah of Architecture and Environmental Design > Department of Building Technology & Engineering
Depositing User: Prof Ir Maisarah Ali
Date Deposited: 11 Jul 2013 01:45
Last Modified: 11 Jul 2013 01:45
URI: http://irep.iium.edu.my/id/eprint/8668

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