posted on 2018-08-02, 12:45authored byChristian Christodoulou, Chris GoodierChris Goodier, Simon Austin, John Webb, Gareth K. Glass
Silanes can act as hydrophobic pore liners for reinforced concrete (RC) structures. They can
significantly reduce the depth of chloride penetration, a major cause of steel reinforcement corrosion. However, there is little published information on their long-term performance. Thirty-two concrete cores were extracted from eight full-scale RC bridge supporting cross-beams that were treated with silane 20 years ago. Their water absorption by capillarity was measured and compared with sixteen control cores extracted from four non-silane treated RC cross-beams constructed at the same time. Results show that silanes may provide a residual protective effect against water even after 20 years of service.
Funding
This work was funded by the Engineering and Physical Sciences Research Council (Grant No. EP/G037272/1).
History
School
Architecture, Building and Civil Engineering
Published in
Hydrophobe 2017: 8th Int. Conference on Water Repellent Treatment and Protective Surface Technology for Building Materials
Citation
CHRISTODOULOU, C. ... et al., 2017. Long-term performance of silanes applied on reinforced concrete bridges. Presented at Hydrophobe 2017: 8th Int. Conference on Water Repellent Treatment and Protective Surface Technology for Building Materials, Hong Kong, 7-9th Dec.
Version
AM (Accepted Manuscript)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/