| 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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Goracci, Guido
European Commission
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2024Sustainable geopolymer concrete for thermoelectric energy harvestingcitations
- 2024Poly(carboxylated ether)s as cement additives: The effect of the addition method on hydration kineticscitations
- 2024Poly(carboxylated ether)s as Cement Additives: The Effect of the Addition Method on Hydration Kineticscitations
- 2023Rationalizing the Effect of the MAA/PEGMA Ratio of Comb-Shape Copolymers Synthetized by Aqueous Free-Radical Copolymerization in the Hydration Kinetics of Ordinary Portland Cementscitations
- 2023Rationalizing the Effect of the MAA/PEGMA Ratio of Comb‐Shape Copolymers Synthetized by Aqueous Free‐Radical Copolymerization in the Hydration Kinetics of Ordinary Portland Cementscitations
- 2022Electrical Conductive Properties of 3D-PrintedConcrete Composite with Carbon Nanofiberscitations
- 2022Thermal Energy Storage (TES) Prototype Based on Geopolymer Concrete for High-Temperature Applicationscitations
- 2022Geopolymer concrete performance study for high-temperature Thermal Energy Storage (TES) applicationscitations
- 2022Electrical conductive properties of 3D-printedconcrete composite with carbon nanofiberscitations
- 2022Thermal Energy Storage (TES) prototype based on geopolymer concrete for high-temperature applicationscitations
- 2022Geopolymer Concrete Performance Study for High-Temperature Thermal Energy Storage (TES) Applicationscitations
- 2020THz Fingerprints of Cement-Based Materialscitations
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article
Rationalizing the Effect of the MAA/PEGMA Ratio of Comb‐Shape Copolymers Synthetized by Aqueous Free‐Radical Copolymerization in the Hydration Kinetics of Ordinary Portland Cements
Abstract
<jats:title>Abstract</jats:title><jats:p>Methacrylic acid‐co‐poly(ethylene glycol methacrylate) (MAA‐co‐PEGMA) copolymers (MPEG‐type polycarboxylate ether (PCE) superplasticizers) are characterized by a comb‐like structure. Although they have been used for years as dispersants in cementitious formulations, their structure–property relationship is still not fully understood. In this work, PCEs with uniform composition and different charge‐density (<jats:italic>N</jats:italic>) or different side chain lengths (<jats:italic>P</jats:italic>) are synthesized by free‐radical copolymerization varying the MAA/PEGMA ratios and ethylene oxide units in the PEGMA macromonomers. The effect of these copolymers on the hydration kinetics of an Ordinary Portland Cement (OPC) is analyzed, and it is observed that by increasing the PCE concentration the hydration is delayed. For a given PCE concentration, the delay is longer as the MAA/PEGMA ratio increases or the side chain length of the PEGMA decreases. The hydration delay is proportional to the carboxylate dosage and all PCEs fit in a master curve proving that the microstructure of the PCEs synthesized by free‐radical copolymerization can be correlated with the hydration delay of a commercial OPC.</jats:p>