Date
2024-03-31Subject
500 Science 540 Chemistry 660 Chemical engineering TonerdeRasterelektronenmikroskopieFluoreszenzmikroskopieFluorophoreMikroskopiePolymereAdsorptionBetonverflüssigerMetadata
Show full item record
Aufsatz
Fluorescence microscopic investigation of PCE superplasticiser adsorption in calcined clay blended cement
Abstract
Global efforts to minimise carbon dioxide emissions are also leading to attempts to use calcined clays (CC) as a partial substitute for cement in concrete. While the hydration mechanism of such CC blended cements is now well understood, the range of effective admixtures like polycarboxylate ethers (PCE) is limited. There are PCE types that promise relatively high effectiveness, but the mechanisms of action are not yet sufficiently understood. For a detailed understanding of the adsorption of such PCEs, spatially resolved studies of the binder were performed using a combination of fluorescence and scanning electron microscopy. In a comparison of two superplasticisers, the investigations have shown different sites of preferred adsorption in a CC blended system and the results can be correlated with flow tests and setting behaviour. The investigations have shown that a certain PCE type has a higher adsorption on CC and other components of a blended system in comparison to other types.
Citation
In: Journal of Microscopy Volume 294 / Issue 2 (2024-03-31) , S. 215-224 ; eissn:1365-2818Sponsorship
Gefördert im Rahmen des Projekts DEALCitation
@article{doi:10.17170/kobra-2024051710156,
author={Kosenko, Denis and Wetzel, Alexander and Middendorf, Bernhard},
title={Fluorescence microscopic investigation of PCE superplasticiser adsorption in calcined clay blended cement},
journal={Journal of Microscopy},
year={2024}
}
0500 Oax 0501 Text $btxt$2rdacontent 0502 Computermedien $bc$2rdacarrier 1100 2024$n2024 1500 1/eng 2050 ##0##http://hdl.handle.net/123456789/15798 3000 Kosenko, Denis 3010 Wetzel, Alexander 3010 Middendorf, Bernhard 4000 Fluorescence microscopic investigation of PCE superplasticiser adsorption in calcined clay blended cement / Kosenko, Denis 4030 4060 Online-Ressource 4085 ##0##=u http://nbn-resolving.de/http://hdl.handle.net/123456789/15798=x R 4204 \$dAufsatz 4170 5550 {{Tonerde}} 5550 {{Rasterelektronenmikroskopie}} 5550 {{Fluoreszenzmikroskopie}} 5550 {{Fluorophore}} 5550 {{Mikroskopie}} 5550 {{Polymere}} 5550 {{Adsorption}} 5550 {{Betonverflüssiger}} 7136 ##0##http://hdl.handle.net/123456789/15798
2024-05-31T14:48:53Z 2024-05-31T14:48:53Z 2024-03-31 doi:10.17170/kobra-2024051710156 http://hdl.handle.net/123456789/15798 Gefördert im Rahmen des Projekts DEAL eng Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ calcined clays ESEM fluorescence microscopy fluorophores light microscopy particle fixation PCE staining superimposition 500 540 660 Fluorescence microscopic investigation of PCE superplasticiser adsorption in calcined clay blended cement Aufsatz Global efforts to minimise carbon dioxide emissions are also leading to attempts to use calcined clays (CC) as a partial substitute for cement in concrete. While the hydration mechanism of such CC blended cements is now well understood, the range of effective admixtures like polycarboxylate ethers (PCE) is limited. There are PCE types that promise relatively high effectiveness, but the mechanisms of action are not yet sufficiently understood. For a detailed understanding of the adsorption of such PCEs, spatially resolved studies of the binder were performed using a combination of fluorescence and scanning electron microscopy. In a comparison of two superplasticisers, the investigations have shown different sites of preferred adsorption in a CC blended system and the results can be correlated with flow tests and setting behaviour. The investigations have shown that a certain PCE type has a higher adsorption on CC and other components of a blended system in comparison to other types. open access Kosenko, Denis Wetzel, Alexander Middendorf, Bernhard doi:10.1111/jmi.13294 Grant Number: 460294323 Tonerde Rasterelektronenmikroskopie Fluoreszenzmikroskopie Fluorophore Mikroskopie Polymere Adsorption Betonverflüssiger publishedVersion eissn:1365-2818 Issue 2 Journal of Microscopy 215-224 Volume 294 false
The following license files are associated with this item: