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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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García-Lodeiro, Inés
European Commission
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2023Evaluation of Fillers for Magnesium Potassium Phosphate Cement (MKPC) for the Encapsulation of Low and Intermediate Level Metallic Radioactive Wastescitations
- 2022Application of electric arc furnace slag as an alternative precursor to blast furnace slag in alkaline cements
- 2022Influence of Accelerating Admixtures on the Reactivity of Synthetic Aluminosilicate Glassescitations
- 2021Portland Versus Alkaline Cement: Continuity or Clean Break: “A Key Decision for Global Sustainability”citations
- 2020The importance of physical parameters for the penetration depth of impregnation products into cementitious materials: Modelling and experimental studycitations
- 2020TEOS modified with nano-calcium oxalate and PDMS to protect concrete based cultural heritage buildingscitations
- 2020Use of industrial by-products as alkaline cement activatorscitations
- 2020Producing C-S-H gel by reaction between silica oligomers and portlandite: A promising approach to repair cementitious materialscitations
- 2019Mechanical-chemical activation of coal fly ashes: An effective way for recycling and make cementitious materialscitations
- 2018Hybrid alkaline cements: Bentonite-Opc binderscitations
- 2014Alkaline activation of synthetic aluminosilicate glasscitations
- 2010Stability of Synthetic Calcium Silicate Hydrate Gels in Presence of Alkalis, Aluminum, and Soluble Silicacitations
Places of action
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article
Evaluation of Fillers for Magnesium Potassium Phosphate Cement (MKPC) for the Encapsulation of Low and Intermediate Level Metallic Radioactive Wastes
Abstract
This study investigates the effect of coal fly ash (FA), wollastonite (WO), pumice (PM), and metakaolin (MK) as filler materials in the rheological, mechanical, chemical, and mineralogical properties of a magnesium potassium phosphate cement (MKPC), designed for the encapsulation of low and intermediate level radioactive wastes containing reactive metals. Workability, compression strength, dimensional stability, pH, chemical composition, and mineralogical properties were studied in different pastes and mortars of MKPC with a fixed molar ratio of MgO/KH2PO4 = 1. No new mineral phases were found with the addition of the fillers, denoting their low chemical impact on the MKPC system. Moreover, all formulations with a water/cement mass ratio of <0.65 presented compressive strengths higher than 30 MPa after 90 days, and pH values lower than 8.5, corresponding to the passivation zone of aluminum corrosion.