Conference Agenda

Session

S3a: Carbonation Mechanisms (2)

Time:

Tuesday, 16/Apr/2024:

2:00pm - 3:00pm

Session Chair: Ruben Snellings

Location: SuperC - main room

Presentations

2:00pm - 2:15pm

CO2 mineralization of hardened cement pastes: on the influence of cement composition on CO2 uptake and pozzolanic reactivity

Tobias Bader, Katja Pesch, Matthias Böhm, Jörg Rickert

VDZ Technology gGmbH, Germany

2:15pm - 2:30pm

Carbonation of Different Hydrated Cement Pastes – A 29Si and 27Al NMR study

Lukas Deffner¹, Marie Singer², Daniel Jansen², Torben Gädt¹

¹Technical University Munich, Germany; ²Friedrich Alexander University Erlangen-Nürnberg

2:30pm - 2:45pm

Effects of Relative Humidity and Temperature on Carbonation Dynamics of CaO and Ca(OH)2

Lisa Mingzhe Sun¹, Connor Hewson¹, Majid Naderi¹, Daryl Williams^1,2, Paul Iacomi¹

¹Surface Measurement Systems Ltd., Alperton, London, HA0 4PE; ²Department of Chemical Engineering, Imperial College London, SW7 2AZ

2:45pm - 3:00pm

Composition and thermodynamic properties of the alumina-silica gel formed upon aqueous carbonation of C-S-H and ettringite

Jiayi Song¹, Maciej Zajac², Barbara Lothenbach³, Jørgen Skibsted¹

¹Department of Chemistry and Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Denmark; ²Global R&D HeidelbergCement AG, Germany; ³Empa, Laboratory for Concrete & Construction Chemistry, Switzerland