Print Email Facebook Twitter Accelerated carbonation of ordinary Portland cement paste and its effects on microstructure and transport properties Title Accelerated carbonation of ordinary Portland cement paste and its effects on microstructure and transport properties Author Romero Rodriguez, C. (TU Delft Materials and Environment) Ye, R. (Politecnico di Torino) Varveri, Aikaterini (TU Delft Pavement Engineering) Rossi, E. (TU Delft Materials and Environment) Anglani, Giovanni (Politecnico di Torino) Antonaci, Paola (Politecnico di Torino) Schlangen, E. (TU Delft Materials and Environment) Šavija, B. (TU Delft Materials and Environment) Contributor Ye, Guang (editor) Dong, Hua (editor) Liu, Jiaping (editor) Schlangen, Erik (editor) Miao, Changwen (editor) Date 2021 Abstract Coupling of carbonation and chlorides ingress mechanisms is very common in concrete under certain exposure conditions such as coastal environments. The aggravation/ mitigation of corrosion by the existence of carbonation lies on the fact that microstructural changes due to carbonation result in changes on the transport properties of the material. In this study we investigate and quantify evolving transport properties of ordinary Portland cement paste, such as porosity, tortuosity and intrinsic permeability. Dual X-ray micro computed tomography (micro CT) is used for the quantification of porosity. Furthermore Dynamic Vapour Sorption (DVS) measurements are carried out to resolve water retention and relative permeability curves. The authors expect to provide insights into the mechanisms of accelerated carbonation in both types of cement paste, as well as data for input and validation of numerical and analytical models on this degradation phenomenon. Subject transport properties cementdual X-ray microcomputer tomographyDVScarbonationblended cement To reference this document use: http://resolver.tudelft.nl/uuid:1ff84ca4-4da0-448a-b798-726632baaaea Publisher Delft University of Technology ISBN 978-94-6366-422-6 Source 4th International Rilem Conference on Microstructure Related Durability of Cementitious Composites: Microdurability 2020 Event 4th International Rilem Conference on Microstructure Related Durability of Cementitious Composites, 2021-04-29 → 2021-05-27, Online, Delft, Netherlands Part of collection Institutional Repository Document type conference paper Rights © 2021 C. Romero Rodriguez, R. Ye, Aikaterini Varveri, E. Rossi, Giovanni Anglani, Paola Antonaci, E. Schlangen, B. Šavija Files PDF Accelerated_carbonation_o ... _paste.pdf 1.32 MB Close viewer /islandora/object/uuid:1ff84ca4-4da0-448a-b798-726632baaaea/datastream/OBJ/view