Upscaling towards applications: Water transport in agglomerates
ESR: Magdalena Janota
Host: USurrey
Start date: February 5, 2018
Objectives:
The objective is to understand anomalous water transport in hydrate agglomerates in terms of changing microstructure by
- pore-size resolved magnetic resonance imaging (MRI) measurements of time dependent water concentration profiles during water egress / ingress;
- comparing MRI data with models of transport which do / do not include time and water content dependent microstructure emergent from WPs 2 and 3.
Progress of the project
Documents
Publications
- Sorption, anomalous water transport and dynamic porosity in cement paste: A spatially localised 1H NMR relaxation study and a proposed mechanism, Peter J. McDonald, Ors Istok, Magdalena Janota, Agata M. Gajewicz-Jaromin, David A. Faux,
Cement and Concrete Research,
Volume 133, 2020,106045,ISSN 0008-8846,
https://doi.org/10.1016/j.cemconres.2020.106045.
Factsheet
Expected Results:
- Month 12: Refinement and validation of MRI methods to ensure the pore size resolved imaging is strictly quantitative;
- Month 21: Macro scale images of sorption profiles; Transport measurements of Cl ions at EPFL;
- Month 30: Tests of models from projects 10 and 11 against MRI data;
- Month 39: Hydrate / MRI best practice guide.
Planned Secondments
- 1 month at EPFL: Measurements of Cl transport; start month 20.
- 4 months at FEI: Introduction to FE methods of multiphase modelling of liquid transport; start month 27
- 2 months at MR Solutions: Application Scientist: MRI of construction concrete; start month 31.