Print Email Facebook Twitter Strain Hardening Cementitious Composite in Reinforced Concrete Cover Zone for Crack Width Control Title Strain Hardening Cementitious Composite in Reinforced Concrete Cover Zone for Crack Width Control Author He, S. (TU Delft Materials and Environment) Lukovic, M. (TU Delft Concrete Structures) Schlangen, E. (TU Delft Materials and Environment) Contributor Ilki, Alper (editor) Çavunt, Derya (editor) Çavunt, Yavuz Selim (editor) Date 2023 Abstract In the current study, experiments were carried out to investigate the cracking behaviour of reinforced concrete beams consisting of 1-cm-thick layer of Strain Hardening Cementitious Composite (SHCC) in the concrete cover zone. The hybrid SHCC/concrete beams with different types of interfaces were tested and compared with control reinforced concrete beams without a SHCC layer. A new SHCC/concrete interface that features a weakened chemical adhesion but an enhanced mechanical bonding was also developed to facilitate the activation of SHCC. The beams were tested in four-point bending configuration, while Digital Image Correlation (DIC) was used to evaluate crack pattern development and crack widths. Results show that hybrid beams possessed similar load bearing capacity but exhibited an improved cracking behaviour as compared to the control beam. The maximum crack width of the best performing hybrid beams exceeded 0.3 mm at approximately 53.3 kN load, whereas in the control beam it exceeded 0.3 mm at only 32.5 kN load. It is thus expected that the hybrid beams developed in the current study will possess an improved durability and enhanced self-healing potential as a result of having smaller cracks, leading to an extended service life at the expense of minimal additional cost. Subject Crack width controlDICinterfaceSHCC To reference this document use: http://resolver.tudelft.nl/uuid:3c2b1e32-4020-45f1-980e-548824f7ba61 DOI https://doi.org/10.1007/978-3-031-32519-9_115 Publisher Springer Embargo date 2023-12-01 ISBN 978-3-031-32518-2 Source Building for the Future: Durable, Sustainable, Resilient: Proceedings of the Symposium 2023 - Volume 1, 349 Event International Symposium of the International Federation for Structural Concrete, fib Symposium 2023, 2023-06-05 → 2023-06-07, Istanbul, Turkey Series Lecture Notes in Civil Engineering, 2366-2557, 349 LNCE Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type conference paper Rights © 2023 S. He, M. Lukovic, E. Schlangen Files PDF 978_3_031_32519_9_115.pdf 2.33 MB Close viewer /islandora/object/uuid:3c2b1e32-4020-45f1-980e-548824f7ba61/datastream/OBJ/view