| Issue |
EPJ Web Conf.
Volume 140, 2017
Powders and Grains 2017 – 8th International Conference on Micromechanics on Granular Media
|
|
|---|---|---|
| Article Number | 13008 | |
| Number of page(s) | 4 | |
| Section | Powder processing | |
| DOI | https://doi.org/10.1051/epjconf/201714013008 | |
| Published online | 30 June 2017 | |
https://doi.org/10.1051/epjconf/201714013008
Phosphonated superplasticizers synthesis: adsorption, dispersion and fluidification ability on calcium carbonate suspensions.
1 Centre des Matériaux de l’Ecole des Mines d’Ales, France.
2 Laboratoire Ingénierie et Architecture Macromoléculaire, Institut Charles Gerhardt de Montpellier.
3 Laboratoire de Physicochimie des Matériaux Cimentaires, Commissariat à l’Energie Atomique de Marcoule, Bagnols-sur-Cèze.
4 Mines Douai, LGCgE – GCE, F-59508 Douai, France.
* Corresponding author: nathalie.azema@mines-ales.fr
Published online: 30 June 2017
Superplasticizers are chemical admixtures used to fluidize cement pastes. Among them, polycarboxylate are comb-like copolymers with carboxylic acid and poly(ethylene glycol) side chains. We present here the synthesis of various polycarboxylate-like copolymers including phosphonic acid functions. Their adsorption, dispersion and fluidification efficiencies are evaluated on calcium carbonate suspensions, a mineral material commonly used to simulate early-age cement behaviour.
© The Authors, published by EDP Sciences, 2017
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