Abstract
Specific parts of reinforced concrete structures such as crash barrier walls on highway bridges suffer from severe exposure to concrete aggressive substances such as de-icing salts and impact like action. Such elements often show insufficient durability when built using conventional reinforced concrete.
Ultra-High Performance Fibre Reinforced Concrete (UHPFRC) shows very low permeability and high strength and deformability. This makes it suitable to significantly improve the durability and mechanical performance of such structural elements.
A layer of UHPFRC has been applied to the concrete crash barrier walls of a bridge following the concept of locally “harden” zones of severe environmental and mechanical exposure. Numerical analysis of the composite system has been performed to determine induced stresses due to thermal, hygral and mechanical actions. The protective function and expected mechanical properties of the rehabilitated crash barrier were confirmed by in situ air permeability testing and by the mechanical testing of cast in place UHPFRC specimens.
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7. References
Brühwiler, E., Denarié, E., Putallaz, J.-C. (2005) Instandsetzung einer Betonbrücke mit ultrahochleistungsfähigem Faserfeinkornbeton (UHLFB). Beton-und Stahlbetonbau 100, Heft 9, pp 822–827.
Rossi, P. (2002) Development of new cement composite material for construction, Innovations and Developments in concrete materials and construction, Proceedings of the international concference, University Dundee, Dundee, Scotland, pp 17–29.
Charron, J.-P., Denarié, E., Brühwiler, E. (2007) Permeability of Ultra High Performance Fiber Reinforced Concretes (UHPFRC) under high stresses. Materials and Structures, 40, no3, pp 269–277.
Roelfstra P. E., Salet A. M., Kuiks J. E. (1994) Defining and application of stressanalysis-based temperature difference limits to prevent early-age cracking in concrete structures. Proceedings no25 of the International RILEM Symposium: Thermal cracking in concrete at early age, pp 273–280. Munich, Germany.
Habel, K. (2004) Structural behaviour of elements combining ultra-high performance fibre reinforced concretes (UHPFRC) and reinforced concrete. Doctoral thesis no3036, Swiss Federal Institute of Technology Lausanne (EPFL), Switzerland.
Wuest, J., Denarié, E., Brühwiler, E. (2007) Measurement and modelling of fibre distribution and orientation in UHPFRC. Proceedings, HPFRCC 5, Mainz, Germany, to be published.
Torrent, R. (1992) A two-chamber vacuum cell for measuring the coefficient of permeability to air of the concrete cover on site. Materials and Structures 25: pp 358–365.
Denarié E., Maître M., Conciatori D., Brühwiler E. (2005) Air permeability measurements for the assessment of the in situ permeability of cover concrete. Proceedings, International Conference on Concrete Repair, Rehabilitation and Retrofitting (ICCRRR 2005), 21–23, November 2005, Cape Town, South Africa.
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Oesterlee, C., Denarié, E., Brühwiler, E. (2007). UHPFRC protection layer on the crash barrier walls of a bridge. In: Grosse, C.U. (eds) Advances in Construction Materials 2007. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-72448-3_20
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DOI: https://doi.org/10.1007/978-3-540-72448-3_20
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-72447-6
Online ISBN: 978-3-540-72448-3
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