Print Email Facebook Twitter Influence of Cracking on Moisture Uptake in Strain-Hardening Cementitious Composites Title Influence of Cracking on Moisture Uptake in Strain-Hardening Cementitious Composites Author Šavija, B. (TU Delft Materials and Environment) Lukovic, M. (TU Delft Steel & Composite Structures) Schlangen, E. (TU Delft Materials and Environment) Date 2016 Abstract Strain-hardening cementitious composites (SHCCs) are a class of cement-based materials that show strain-hardening behavior in tension. This is achieved by multiple microcracking, which results in a tightly spaced crack pattern with relatively small crack widths (50–80 μm, in general) and high strain capacity (up to 4–5%). Because of their ductile behavior and tight crack widths, SHCCs are commonly used for concrete repair applications. However, because of the tight crack width and crack spacing, moisture uptake by capillary suction can take place very fast. This could result in rapid access of deleterious substances, such as chloride ions, resulting in corrosion initiation. In this study, X-ray tomography is used for monitoring and quantification of water uptake in SHCC. Specimens were first loaded to different strain levels in uniaxial tension. Then, they were subjected to a capillary suction test. The performed test was subsequently modeled using a lattice model. To reference this document use: http://resolver.tudelft.nl/uuid:871dbc90-a636-454a-8ed0-3e098af0e418 DOI https://doi.org/10.1061/(ASCE)NM.2153-5477.0000114 ISSN 2153-5477 Source Journal of Nanomechanics and Micromechanics, 1-8 Part of collection Institutional Repository Document type journal article Rights © 2016 B. Šavija, M. Lukovic, E. Schlangen Files PDF AuthorsCopy.pdf 2.79 MB Close viewer /islandora/object/uuid:871dbc90-a636-454a-8ed0-3e098af0e418/datastream/OBJ/view