Wilhelm-Kaisen-Brücke at Bremen

As part of the restoration of Wilhelm-Kaisen-Brücke in Bremen, we are contributing to a clearly defined goal: Once renovated, the bridge is expected to have a remaining service life of around 40 years. A key component in achieving this are 16 anchor blocks, which integrate the anchor structure in a force-fit manner. It is precisely at this interface that it is determined whether loads are transferred safely and permanently into the structure.

For the grouting work, we used V1/160 PAGEL-VERGUSS. A total of approx. 65 tonnes of material was processed in a single continuous operation. This placed high demands on logistics, timeframes and process stability: conveying distances of up to 40 metres, very confined spaces and a high degree of reinforcement left little room for improvisation. In addition, grouting heights of up to 1.15 metres had to be achieved – a dimension where flowability, de-aeration and controlled application must work together seamlessly.
To ensure the project’s success from the outset, we produced and evaluated a large-scale test specimen under real site conditions in advance. This enabled us to practically test material behaviour, placement and compaction strategies, as well as handling along the planned conveying routes. The findings from this test were directly incorporated into the work preparation and on-site scheduling.

The work was carried out by PAGEL Technische Mörtel und Baumaschinen Beckschulte KG. A key factor was the uniform, continuous supply of material and a precisely timed installation process, ensuring that the grouting could be completed without interruptions and without compromising quality. The result: precisely installed anchor blocks providing a robust foundation, and thus an important step towards the restoration of the Wilhelm-Kaisen-Brücke.