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Long-term performance of silanes applied on reinforced concrete bridges

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conference contribution
posted on 02.08.2018, 12:45 by Christian 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/

Acceptance date

31/10/2017

Publication date

2017

Notes

This is a conference paper.

Language

en

Location

Hong Kong

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