Influence of a dialysed polymer latex on the hydration of OPC – A closer look into adsorption processes
Schreiber J, Wang J, Kong X, Neubauer J, Jansen D (2024)
Publication Type: Journal article
Publication year: 2024
Journal
Book Volume: 176
Article Number: 107390
DOI: 10.1016/j.cemconres.2023.107390
Abstract
The impact of a dialysed styrene acrylate copolymer on cement hydration was investigated. The retarding and depressing mechanism of the polymer particles on OPC hydration was examined via heat flow calorimetry, in-situ X-ray analysis and pore solution composition measurements. To ensure excessive polymer particles were remaining in the pore solution during the hydration, a high polymer-cement-ratio was chosen. It is found that the physical mechanism, the adsorption, is the most influential cause of the retardation and depression. Both aluminate and silicate reactions are strongly inhibited by the adsorption of polymer particles on hydrate phases. As long as polymer particles are found in the pore solution, newly forming surfaces are directly occupied by the latex particles, thus delaying the reaction. The OPC hydration is kinetically slowed down by polymer particle adsorption even though thermodynamically there is no hindrance for the hydration progression.
Authors with CRIS profile
Jakob Schreiber
Lehrstuhl für Mineralogie
Jürgen Neubauer
Lehrstuhl für Mineralogie
Daniel Jansen
Lehrstuhl für Mineralogie
Involved external institutions
China (CN)How to cite
APA:
Schreiber, J., Wang, J., Kong, X., Neubauer, J., & Jansen, D. (2024). Influence of a dialysed polymer latex on the hydration of OPC – A closer look into adsorption processes. Cement and Concrete Research, 176. https://doi.org/10.1016/j.cemconres.2023.107390
MLA:
Schreiber, Jakob, et al. "Influence of a dialysed polymer latex on the hydration of OPC – A closer look into adsorption processes." Cement and Concrete Research 176 (2024).
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