| 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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Hasholt, Marianne Tange
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2024Towards Extending the Range of Supplementary Cementitious Materials in ASR Regulations
- 2024Laboratory and field investigations of alkali-silica reaction prevention by supplementary cementitious materials:Influence of the free alkali loadingcitations
- 2023Pore solution alkalinity of cement paste as determined by Cold Water Extractioncitations
- 2023Pore solution alkalinity of cement paste as determined by Cold Water Extractioncitations
- 2023Relationship between Chloride Migration, Bulk Electrical Conductivity and Formation Factor of Blended Cement Pastescitations
- 2023Cold Water Extraction for determination of the free alkali metal content in blended cement pastescitations
- 2023Cold Water Extraction for determination of the free alkali metal content in blended cement pastescitations
- 2022Predicting the effect of SCMs on ASR in the accelerated mortar bar test with artificial neural networks
- 2022Predicting the effect of SCMs on ASR in the accelerated mortar bar test with artificial neural networks
- 2022Nordic Concrete Research workshop: “Accelerated freeze-thaw testing of concrete”, Lyngby, 20<sup>th</sup> April 2022citations
- 2020Air void analysis of hardened concrete without colour enhancementcitations
- 2016Frost damage of concrete subject to confinement
- 2015Superabsorbent Polymers as a Means of Improving Frost Resistance of Concretecitations
- 2005The effect of form pressure on the air void structure of SCC
Places of action
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article
Cold Water Extraction for determination of the free alkali metal content in blended cement pastes
Abstract
In this work, Cold Water Extraction (CWE) was performed on blended cement pastes to extract the pore solution and determine the free alkali metal content. To better understand CWE results, the reactivity of cementitious materials was also investigated, complemented by TGA and quantitative XRD analysis. The study aimed at being generic to assess the suitability of the methods, and included 9 SCMs with various compositions: limestone, coal fly ash, two calcined clays, two biomass ashes, sewage sludge ash, crushed brick and glass beads.<br/><br/>The study highlighted the importance of assessing the reactivity of SCMs in parallel to performing CWE, as this contributes to a more certain interpretation of the results. In general, results obtained with CWE were consistent with the existing literature about the effect of binder composition on the free alkali metal content. From a practical view, CWE and SCM reactivity tests could be performed with basic laboratory equipment and appeared to be applicable to both traditional and alternative SCMs.