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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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Nunes, Sandra
Delft University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2023Hardening characterisation of a non-proprietary and more eco-friendly UHPCcitations
- 2023Hardening characterisation of a non-proprietary and more eco-friendly UHPCcitations
- 2022Multi-level study on UHPFRC incorporating ECatcitations
- 2021Chloride Ion Penetration into Cracked UHPFRC During Wetting-drying Cyclescitations
- 2021Durability of an UHPC containing spent equilibrium catalystcitations
- 2020Quaternary blends of portland cement, metakaolin, biomass ash and granite powder for production of self-compacting concretecitations
- 2019Spent equilibrium catalyst as internal curing agent in UHPFRCcitations
- 2019Spent equilibrium catalyst as internal curing agent in UHPFRCcitations
- 2018Durability of fibre reinforced cementitious composites
- 2018Alkali-activated cement using slags and fly ash
- 2014Linking fresh and durability properties of paste to SCC mortarcitations
- 2009Combined effect of two sustainable technologies: Self-compacting concrete (SCC) and controlled permeability formwork (CPF)citations
Places of action
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article
Spent equilibrium catalyst as internal curing agent in UHPFRC
Abstract
<p>The main goal of the current paper is to optimize ultra-high performance cementitious material (UHPC) mixes incorporating the spent equilibrium catalyst (ECat) to mitigate autogenous shrinkage. Design of experiments approach was used to optimize mixtures targeting different engineering properties, namely, self-compactibility, low early-age shrinkage and cracking risk, improved durability and high mechanical performance. The statistical models established indicated that ECat exhibits a strong positive effect on the autogenous shrinkage mitigation of UHPC attributed to the water absorbed in the porous of ECat particles. The proposed optimal UHPC mixture represents the best compromise between low autogenous shrinkage – 32% of reduction – and high resistivity at 28 days without impairing self-compatibility and compressive strength. This optimal UHPC combined with 3% high-strength steel fibres (l<sub>f</sub>/d<sub>f</sub> = 65) proved to be comparable to other Ultra High-Performance Fibre Reinforced Composites (UHPFRC), in terms of mechanical behaviour, and more eco-friendly and cost-efficient than UHPCs reported in the literature.</p>