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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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Ranjbar, Navid
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2023Cementitious phase quantification using deep learningcitations
- 2023A review: Alkali-activated cement and concrete production technologies available in the industrycitations
- 2022Segmentation of backscattered electron images of geopolymers using convolutional autoencoder networkcitations
- 2021Shear strength and life cycle assessment of volcanic ash-based geopolymer and cement stabilized soilcitations
- 2021Evolution of Dynamic Properties of Cross-Anisotropic Sand Subjected to Stress Anisotropycitations
- 2021Rheological characterization of 3D printable geopolymerscitations
- 2020Effects of heat and pressure on hot-pressed geopolymercitations
- 2020Hardening evolution of geopolymers from setting to equilibrium: A reviewcitations
- 2018Clayey soil stabilization using geopolymer and Portland cementcitations
Places of action
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article
A review: Alkali-activated cement and concrete production technologies available in the industry
Abstract
<p>A growing interest in alternative cements has emerged with the sole purpose of reducing the environmental footprint associated with cement production. One of the promising alternatives is to use non-carbonate materials such as alkali-activated materials. They have demonstrated to have a similar performance as traditional Portland cement and have the potential to significantly reduce CO<sub>2</sub> emissions. This paper reviews the main relevant technologies that are already available in the construction industry and explains how to consider them for alkali-activated cement and concrete production. This includes aluminosilicate pre-treatment methods (drying, grinding, and calcining) to increase the precursor's reactivity and degree of amorphization, alkali activation by two-part or one-part mix, as well as, mixing and casting fresh alkali-activated concrete ensuring low porosity and adequate strength development. This review also presents an overview of the alkali-activated cements market, providing examples of commercialized products, estimating related CO<sub>2</sub> and costs, as well as future considerations for standardization and commercialization. Most of the commercialized alkali-activated materials are two-part mixes despite their limitations for in-situ applications. CO<sub>2</sub> emissions can be reduced by more than 68% when compared to Portland cements. However, they have been estimated to be 2 to 3 times more expensive and the cost is primarily dependent on the aluminosilicate and alkali activators source.</p>