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Materials 2017, 10(9), 1099; doi:10.3390/ma10091099

Strengthening of Existing Bridge Structures for Shear and Bending with Carbon Textile-Reinforced Mortar

Institute of Structural Concrete, RWTH Aachen University, 52056 Aachen, Germany
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Received: 30 August 2017 / Revised: 13 September 2017 / Accepted: 13 September 2017 / Published: 19 September 2017
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Abstract

Increasing traffic loads and changes in code provisions lead to deficits in shear and flexural capacity of many existing highway bridges. Therefore, a large number of structures are expected to require refurbishment and strengthening in the future. This projection is based on the current condition of many older road bridges. Different strengthening methods for bridges exist to extend their service life, all having specific advantages and disadvantages. By applying a thin layer of carbon textile-reinforced mortar (CTRM) to bridge deck slabs and the webs of pre-stressed concrete bridges, the fatigue and ultimate strength of these members can be increased significantly. The CTRM layer is a combination of a corrosion resistant carbon fiber reinforced polymer (CFRP) fabric and an efficient mortar. In this paper, the strengthening method and the experimental results obtained at RWTH Aachen University are presented. View Full-Text
Keywords: concrete; textile-reinforced mortar; strengthening; shear; bending concrete; textile-reinforced mortar; strengthening; shear; bending
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Herbrand, M.; Adam, V.; Classen, M.; Kueres, D.; Hegger, J. Strengthening of Existing Bridge Structures for Shear and Bending with Carbon Textile-Reinforced Mortar. Materials 2017, 10, 1099.

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