BEVERENTUNNEL
- Owner
- Agentschap Wegen en Verkeer (Flemish Roads and Traffic Agency)
- Asset
- Road tunnel
- Location
- Beveren, Port of Antwerp, Belgium
- Age at investigation
- 33 years
- Engineering
- SANACON
- Analysis
- Remaining service life (carbonation and chlorides)
Background & Challenge
The Beveren Tunnel, a vital underground transport link in the Port of Antwerp region, is subjected to harsh environmental conditions. Exposure to heavy traffic, industrial pollution, de-icing salts, and moisture ingress over decades leads to chemical degradation of concrete structures—primarily driven by chloride penetration and carbonation.
To optimize maintenance budgets, prevent catastrophic degradation, and ensure structural safety without unnecessary full-scale rehabilitation, the asset managers required a precise quantitative assessment of the tunnel’s remaining service life.
The Solution by Sanacon
Sanacon, a specialist spin-off in concrete degradation and structural durability, performed a comprehensive material investigation and service life calculation tailored specifically to the Beveren Tunnel.
Detailed On-Site Inspection & Sampling: Core samples and non-destructive testing were carried out across critical zones of the tunnel lining to evaluate existing cover depth, carbonation depth, and chloride concentration profiles.
Advanced Material Analysis: In their specialized laboratory, Sanacon determined key physical and chemical parameters, including concrete porosity, migration coefficients, and binder characteristics.
Probabilistic Service Life Modeling: Using advanced durability models (such as fib Model Code 34 / EN 1062 frameworks), Sanacon calculated the initiation phase of reinforcement corrosion. By factoring in environmental exposure classes and local microclimates within the tunnel, the team simulated future degradation rates under various exposure scenarios.
Key Results & Impact
Accurate Life Expectancy Data: Asset managers received a clear, data-driven timeline indicating when critical corrosion thresholds would be breached.
Targeted Maintenance Strategy: Instead of costly full-tunnel overhauls, interventions could be planned precisely for specific high-risk zones identified by Sanacon.
Cost Optimization: By shifting from reactive repairs to predictive maintenance, the project extended the safe operating window of the Beveren Tunnel while minimizing traffic disruptions.
Through advanced diagnostic testing and predictive modeling, Sanacon delivered a reliable roadmap to safeguard the Beveren Tunnel’s long-term integrity and operational continuity.
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One group, from inspection to decision
DIMCOST is developed within the SANACON group. Together with our sister companies, we cover the full chain from data capture on site to a well-founded maintenance strategy.
Plan a demoEngineering and structural advice: concrete durability, service life analysis, repair design and cathodic protection. Ghent University spin-off.
Visit sanacon.be →On-site concrete testing and core drilling: the field data on cover, carbonation and chlorides that feed the DIMCOST models.
Visit betonplus.be →Industrial drone inspections and 3D models, loaded directly into DIMCOST to map defects and track changes over time.
Visit medexon.com →See what DIMCOST can tell you about your own asset
Share your inspection data or describe your structure. We show you how a service life analysis turns it into a maintenance plan you can budget.