Aufsatz
Prediction Model Based on DoE and FTIR Data to Control Fast Setting and Early Shrinkage of Alkaline-Activated Slag/Silica Fume Blended Cementitious Material
Abstract
This study aims to develop a material-saving performance prediction model for fast-hardening alkali-activated slag/silica fume blended pastes. The hydration process in the early stage and the microstructural properties after 24 h were analyzed using design of experiments (DoE). The experimental results show that the curing time and the FTIR wavenumber of the Si-O-T (T = Al, Si) bond in the band range of 900–1000 cm−¹ after 24 h can be predicted accurately. In detailed investigations, low wavenumbers from FTIR analysis were found to correlate with reduced shrinkage. The activator exerts a quadratic and not a silica modulus-related conditioned linear influence on the performance properties. Consequently, the prediction model based on FTIR measurements proved to be suitable in evaluation tests for predicting the material properties of those binders in the building chemistry sector.
Citation
In: Materials Volume 16 / Issue 11 (2023-05-31) eissn:1996-1944Sponsorship
Gefördert durch den Publikationsfonds der Universität KasselCitation
@article{doi:10.17170/kobra-202307038324,
author={Schade, Tim and Middendorf, Bernhard},
title={Prediction Model Based on DoE and FTIR Data to Control Fast Setting and Early Shrinkage of Alkaline-Activated Slag/Silica Fume Blended Cementitious Material},
journal={Materials},
year={2023}
}
0500 Oax 0501 Text $btxt$2rdacontent 0502 Computermedien $bc$2rdacarrier 1100 2023$n2023 1500 1/eng 2050 ##0##http://hdl.handle.net/123456789/14866 3000 Schade, Tim 3010 Middendorf, Bernhard 4000 Prediction Model Based on DoE and FTIR Data to Control Fast Setting and Early Shrinkage of Alkaline-Activated Slag/Silica Fume Blended Cementitious Material / Schade, Tim 4030 4060 Online-Ressource 4085 ##0##=u http://nbn-resolving.de/http://hdl.handle.net/123456789/14866=x R 4204 \$dAufsatz 4170 5550 {{Schrumpfen}} 5550 {{Versuchsplanung}} 5550 {{Schlacke}} 5550 {{Zement}} 5550 {{Schnellhärtung}} 5550 {{Stoffeigenschaft}} 7136 ##0##http://hdl.handle.net/123456789/14866
2023-07-03T16:39:18Z 2023-07-03T16:39:18Z 2023-05-31 doi:10.17170/kobra-202307038324 http://hdl.handle.net/123456789/14866 Gefördert durch den Publikationsfonds der Universität Kassel eng Namensnennung 4.0 International http://creativecommons.org/licenses/by/4.0/ alkali-activated materials FTIR shrinkage design of experiments 600 Prediction Model Based on DoE and FTIR Data to Control Fast Setting and Early Shrinkage of Alkaline-Activated Slag/Silica Fume Blended Cementitious Material Aufsatz This study aims to develop a material-saving performance prediction model for fast-hardening alkali-activated slag/silica fume blended pastes. The hydration process in the early stage and the microstructural properties after 24 h were analyzed using design of experiments (DoE). The experimental results show that the curing time and the FTIR wavenumber of the Si-O-T (T = Al, Si) bond in the band range of 900–1000 cm−¹ after 24 h can be predicted accurately. In detailed investigations, low wavenumbers from FTIR analysis were found to correlate with reduced shrinkage. The activator exerts a quadratic and not a silica modulus-related conditioned linear influence on the performance properties. Consequently, the prediction model based on FTIR measurements proved to be suitable in evaluation tests for predicting the material properties of those binders in the building chemistry sector. open access Schade, Tim Middendorf, Bernhard 24 Seiten doi:10.3390/ma16114104 Schrumpfen Versuchsplanung Schlacke Zement Schnellhärtung Stoffeigenschaft publishedVersion eissn:1996-1944 Issue 11 Materials Volume 16 false 4104
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