Concrete pouring underwater?
Harbour basin renovation in Mühlheim
From analysis to execution: systematic harbour basin rehabilitation
In this repair project in the harbour basin, the focus was on one thing: protecting the existing structure rather than replacing it. During ongoing harbour operations, downtime is costly, access is restricted and the conditions are challenging. This is precisely where a solution that is technically sound, cost-effective and reliable to implement is essential.
We at PAGEL Spezial-Beton & PAGEL Technische Mörtel have been involved in the harbour basin refurbishment from the very start – from preliminary tests to ensure material and process reliability, through to helping design the injection technique, right up to the final grouting. The aim was to achieve a long-lasting structural repair in the harbour.
From analysis to execution: systematic harbour basin rehabilitation
In this repair project in the harbour basin, the focus was on one thing: protecting the existing structure rather than replacing it. During ongoing harbour operations, downtime is costly, access is restricted and the conditions are challenging. This is precisely where a solution that is technically sound, cost-effective and reliable to implement is essential.
We at PAGEL Spezial-Beton & PAGEL Technische Mörtel have been involved in the harbour basin refurbishment from the very start – from preliminary tests to ensure material and process reliability, through to helping design the injection technique, right up to the final grouting. The aim was to achieve a permanent structural repair in the harbour.
Underwater grouting: industrial divers, formwork and controlled injection
The special feature: underwater grouting and concreting work. Industrial divers were deployed on site to form the voids with precision. Underwater, they professionally formwork the areas, thereby creating the basis for a watertight, dimensionally stable grouting chamber.
In addition, the divers installed a filling pipe through which the grout could be introduced in a controlled manner underwater. This allowed the material to be directed precisely, prevented segregation and ensured the quality of the pour even under difficult visibility and current conditions.
Grouting from the towing platform
Material flow, timing and injection technique were optimised for the work carried out from the towing platform. PAGEL V80C45 was used as the grouting material – an optimal solution for demanding conditions where workability, stability and process reliability are crucial.
Cost-effective repair – preserving the structure
Targeted repair of defects in the harbour basin saved time, costs and resources. The result: predictable, safe concrete repair work of a high standard, even underwater and whilst operations were ongoing.
Contractors:
Project location:
Project objective:
- Repair of defects in the harbour basin
Material:
Date of execution:
- 23 January 2026
