3D imaging of moisture distribution and transport in early-age cementitious materials

Author(s): Pietro Lura, Mateusz Wyrzykowski, Fei Yang, F. Prade, Michele Griffa, Rolf Kaufmanna, F. Pfeiffer
Paper category: Proceedings
Book title: Proceedings of the 2nd International RILEM/COST Conference on Early Age Cracking and Serviceability in Cement-based Materials and Structures Volume 1
Editor(s): Stéphanie Staquet and Dimitrios Aggelis
ISBN:978-2-35158-199-5
e-ISBN:978-2-35158-198-8
Publisher: RILEM Publications SARL
Publication year: 2017
Pages: 51-54
Total Pages: 4
Language : English

Abstract: The presence of water and its temporal and spatial distributions influence several processes that are critical to cementitious materials in the first hours to days after casting, including microstructure development during hydration, drying and autogenous shrinkage (which may lead to early-age cracking) and water-curing of concrete. In all these processes, microstructural changes and fluid transport are coupled phenomena, meaning that the fluid transport will influence the microstructure and at the same time changes in the microstructure (cracking, porosity changes) will affect the transport properties of the cementitious material, thus the water distribution. Novel non-destructive / non-invasive imaging techniques for probing simultaneously the microstructure and the moisture distribution provide data for validating coupled numerical models that consider the mutual interactions of cement hydration and transport.

Online publication : 2017
Publication type : full_text
Public price (Euros) : 0.00