| People | Locations | Statistics |
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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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Nguyen, Tien-Dung
Imperial College London
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2022Potential additives for magnesia-based concrete with enhanced performance and propensity for CO2 sequestrationcitations
- 2022New frontiers in sustainable cementscitations
- 2022Potential additives for magnesia-based concrete with enhanced performance and propensity for CO 2 sequestrationcitations
- 2021Improving the carbonation resistance of Na2CO3-activated slag mixes via the use of reactive MgO and nucleation seedingcitations
- 2018Improving the Carbonation of Reactive MgO Cement Concrete via the Use of NaHCO3 and NaClcitations
- 2018Improving the Carbonation of Reactive MgO Cement Concrete via the Use of NaHCO 3 and NaClcitations
- 2018Development of MgO concrete with enhanced hydration and carbonation mechanismscitations
- 2017Performance and microstructural development of MgO-SiO 2 binders under different curing conditionscitations
- 2017Influence of nucleation seeding on the performance of carbonated MgO formulationscitations
- 2017Performance and microstructural development of MgO-SiO2 binders under different curing conditionscitations
- 2016Engineering properties and durability of high-strength self-compacting concrete with no-cement SFC bindercitations
- 2016Improving the performance of reactive MgO cement-based concrete mixescitations
- 2016Sulfate resistance of low energy SFC no-cement mortarcitations
- 2015Influence of circulating fluidized bed combustion (CFBC) fly ash on properties of modified high volume low calcium fly ash (HVFA) cement paste
Places of action
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article
Improving the Carbonation of Reactive MgO Cement Concrete via the Use of NaHCO3 and NaCl
Abstract
The performance of reactive MgO cement (RMC)-based concrete formulations is determined by the carbonation process, which is hindered by the inadequate CO<sub>2</sub><br/> dissolution in the pore solution. This study addresses the improvement of carbonation and associated performance of carbonated RMC-based concrete samples via the introduction of sodium bicarbonate (SBC) and sodium chloride (SC). The use of these additives increases the initial pH, which accelerates the dissolution of CO<sub>2 </sub>within the pore solution. The influence of SBC and SC on the progress of hydration is evaluated by isothermal calorimetry and pH measurements. Mechanical performance results are supported by X-ray diffraction (XRD), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM), which identify the formation and morphology of final phases. The presence of SBC and SC enhances the dissolution of CO<sub>2</sub> and improves the content and morphology of carbonate phases, leading to the formation of a strong carbonate network that increases sample performance by >100%at 28 days.