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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Karadelis, John
Coventry University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2018Green Pavement Overlays. Composite Beams on Elastic Foundation and their Numerical Representation
- 2018Investigation of intrinsic de-bonding in bonded concrete overlays: Material characterisation and numerical Studycitations
- 2016Optimum design for sustainable, 'green' concrete overlays. Part III
- 2016Optimum Design for Sustainable, ‘Green’ Concrete Overlays. Part II: Shear Failure at Cracks and Inadequate Resistance to Reflection Cracking
- 2016Optimum Design for Sustainable, ‘Green’ Concrete Overlays. Part I: (a) Mix-Design, (b) Controlling Flexural Failure
- 2015Interfacial Delamination Failure in Bonded Concrete Overlay Systems - A Review of Theories and Modelling Methods
- 2015Applied mixture optimization techniques for paste design of bonded roller-compacted fibre reinforced polymer modified concrete (BRCFRPMC) overlayscitations
- 2015Flexural strengths and fibre efficiency of steel-fibre-reinforced, roller-compacted, polymer modified concretecitations
- 2003Sustainable 'Green' Overlays for Strengthening and Rehabilitation of Concrete Pavements.
Places of action
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article
Investigation of intrinsic de-bonding in bonded concrete overlays: Material characterisation and numerical Study
Abstract
This study investigates the evolution of intrinsic interfacial de-bonding of Roller Compacted Steel Fibre Reinforced Polymer Modified Concrete (RC-SFR-PMC) bonded on substrate Ordinary Portland Cement Concrete (OPCC), using both experimental and numerical techniques. The relative effects of evolving material inhomogeneity and composite dimensional stability during curing was studied as a function of overlay structural scale, using a 2D plane strain Interface Cohesive Zone Model (ICZM). The effects of creep coefficient on interface restraint capacity and ensuing cohesive zone length were clearly evaluated. The results showed that the applied curvature due to the measured shrinkage strain was inadequate to cause critical de-bonding. In the FEA results, while the rate of interface energy release generally varies as a function of the bi-material relative stiffness and overlay structural scale, it is also evident that the two variables lose effects as the overlay structural scale approaches 0.50. The overall indicative trend shows that the rate of energy release in compliant overlay when relative stiffness( α<0) is higher than when α>0. Therefore, a more compliant overlay typically exhibits less relative restraint to bending induced de-bonding.