| Issue |
MATEC Web Conf.
Volume 409, 2025
Concrete Solutions 2025 – 9th International Conference on Concrete Repair, Durability & Technology
|
|
|---|---|---|
| Article Number | 05004 | |
| Number of page(s) | 9 | |
| Section | Case Studies 2 | |
| DOI | https://doi.org/10.1051/matecconf/202540905004 | |
| Published online | 13 June 2025 | |
Service life extension of concrete tunnels by means of impressed current cathodic protection (ICCP) – Case study: Throne tunnel (Brussels)
SANACON bv, Ghent University spin-off, Nijverheidsweg 1/A, 9820 Merelbeke, Belgium
* Corresponding author: bjorn.vanbelleghem@sanacon.be
Impressed current cathodic protection (ICCP) was adopted as a durable repair strategy to extend the service life of a 55-year old reinforced concrete tunnel roof slab, owing to a widespread risk for damage due to reinforcement corrosion. An ICCP system with TiMMO ribbon anodes in a shotcrete overlay was designed, divided into 24 zones. An 85 m2 test area was installed to verify the design and assess the performance during a 43-day trial period. A cathodic current density of 14 mA/m² steel was found to be sufficient to obtain an adequate protection of the steel reinforcement, demonstrated by decay measurements according to the European standard EN ISO 12696:2022.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.