Abstract
This paper presents and discusses experimental results on the tensile mechanical performance of a newly developed ultra-high performance cementitious material, UHPC, incorporating spent equilibrium catalyst (ECat), a waste generated by the oil refinery industry, as a supplementary cementitious material. The results are compared to a previously developed conventional UHPC. The influence of ECat on the heat of hydration in UHPC is evaluated by isothermal calorimeter under a constant temperature of 20 ℃. To determine the evolution of the tensile behaviour with time, a series of uniaxial tensile tests are performed on the specimens at different ages, i.e. 1, 3, 7, 28 and 91 days after casting. Afterwards, the fibre to matrix interfacial bond properties were characterized by executing a series of single fibre pullout tests at the age of 28 days on the steel fibres embedded in UHPCs with 0°, 30° and 60° orientation angles. The results confirmed the adequate performance of the new developed UHPC for the structural application.
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References
Yoo, D.Y., Lee, J.H., Yoon, Y.S.: Effect of fibre content on mechanical and fracture properties of ultra high performance fibre reinforced cementitious composites. Compos. Struct. 106, 742–753 (2013)
Charron, J.P., Denarié, E., Brühwiler, E.: Permeability of ultra high performance fiber reinforced concretes (UHPFRC) under high stresses. Mater. Struct. 40, 269–277 (2007)
Abrishambaf, A., Pimentel, M., Nunes, S.: Influence of fibre orientation on the tensile behaviour of ultra-high performance fibre reinforced cementitious composites. Cem. Concr. Res. 97, 28–40 (2017)
Abrishambaf, A., Pimentel, M., Nunes, S.: A meso-mechanical model to simulate the tensile behaviour of ultra-high performance fibre reinforced cementitious composites. Compos. Struct. 222, 110911 (2019)
Fehling, E., Schmidt, M., Walraven, J., Leutbecher, T., Frohlich, S.: Ultra-High Performance Concrete UHPC: Fundamentals, Design, Examples. Wiley, Berlin (2014)
Matos, A.M., Nunes, S., Costa, C., Barroso-Aguiar, J.L.: Spent equilibrium catalyst as internal curing agent in UHPFRC. Cem. Concrete Compos. 104, 103362 (2019)
Wexham Developments: JAF Calorimeter - Operating Manual, 7th edn. United Kingdoom (2005)
Abrishambaf, A., Pimentel, M., Nunes, S.: Tensile behaviour of an ultra-high performance fibre reinforced cementitious composites incorporating Spent Equilibrium Catalyst. In: 5th International Symposium on Ultra-High Performance Concrete and High Performance Construction Materials, Proceedings of an International Conference, Germany, March 2020
Acknowledgements
This work was financially supported by: Base Funding - UIDB/04708/2020 and Programmatic Funding - UIDP/04708/2020 of CONSTRUCT -Instituto de I&D em Estruturas e Construções funded by national funds through the FCT/MCTES (PIDDAC); and by the project PTDC/ECI-EST/31777/2017 – “UHPGRADE - Next generation of ultra-high performance fibre-reinforced cement based composites for rehabilitation and strengthening of the existing infrastructure” funded by FEDER funds through COMPETE2020-Programa Operacional Competitividade e Internacionalização (POCI) and by national funds (PIDDAC) through FCT/MCTES. Collaboration and materials supply by Concremat, Secil, Omya Comital, Sika and Bekaert is gratefully acknowledged.
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Abrishambaf, A., Pimentel, M., Nunes, S. (2021). An Eco-Friendly UHPC for Structural Application: Tensile Mechanical Response. In: Serna, P., Llano-Torre, A., Martí-Vargas, J.R., Navarro-Gregori, J. (eds) Fibre Reinforced Concrete: Improvements and Innovations. BEFIB 2020. RILEM Bookseries, vol 30. Springer, Cham. https://doi.org/10.1007/978-3-030-58482-5_93
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DOI: https://doi.org/10.1007/978-3-030-58482-5_93
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