Print Email Facebook Twitter Simulating cement microstructural evolution during calcium leaching Title Simulating cement microstructural evolution during calcium leaching Author Patel, R.A. Perko, J. Jacques, D. De Schutter, G. Van Breugel, K. Ye, G. Faculty Civil Engineering and Geosciences Department Structural Engineering Date 2014-12-31 Abstract Calcium leaching is one of the important degradation mechanisms causing dissolution of the crystalline phases such as, AFm, portlandite increasing capillary porosity. Further it leads to decalcification of an amorphous C-S-H phase causing increase in the gel porosity and in turn degrading the long term performance of concrete structures. In this paper a lattice Boltzmann based pore-scale reactive transport approach in the context of simulating the evolution of microstructure of a hardened cement paste during calcium leaching is presented. This approach is based on fundamental principles of chemical thermodynamics and mass transport. The example presented illustrates influence of location of mineral grains and surface area on overall dissolution rate and pore structure evolution. To reference this document use: http://resolver.tudelft.nl/uuid:7d197f6b-4a8e-49ef-b067-c2c1004b6cbc Publisher CRIB ISBN 978-2-9806762-2-2 Source Proceedings of the 10th FIB International PhD Symposium in Civil Engineering, 21 – 23 July 2014, Québec, Canada. Eds.: Bastien, J., Rouleau, N., Fiset, M., Thomassin, M. Part of collection Institutional Repository Document type conference paper Rights (c) The auhors. CC BY_NC_ND Files PDF 317774.pdf 394.49 KB Close viewer /islandora/object/uuid:7d197f6b-4a8e-49ef-b067-c2c1004b6cbc/datastream/OBJ/view