MAX FRANK supplied Stremaform® permanent formwork for construction joints, assembled on the seabed, for the extension of the "Muelle Poniente Norte" dock in the harbour of Palma de Mallorca.
Palma de Mallorca has the largest harbour and airport in the Balearic Islands. To better-manage the increasing number of tourists, it became necessary to expand the "Muelle Poniente Norte" dock in the harbour by more than 36,000 square metres.
The project involved the placement of nine prefabricated concrete boxes, each with a length of 42.50 m, a width of 15.50 m and a height of 15.90 m, on the seabed. A total of 4,200 m3 of underwater concrete was poured in layers of 1.05 m in height.
For the dock, MAX FRANK supplied Stremaform® permanent formwork units as substantial L-sections with a height of 2.10 m, a width of 2.20 m and a base of 0.80 m. Special elements were developed and manufactured for corner applications.
The pre-assembled Stremaform® units were positioned on the seabed using conventional lifting equipment. Due to the self-supporting construction and the weight of the fresh concrete during the concreting process, Stremaform® securely fixes itself to the substrate, withstanding the concreting pressure.
One of the major advantages of using Stremaform® is the reduction of working time under water (diver hours), resulting in significant cost-savings. Since most of the shuttering and assembly work is carried out before the formwork is submerged and dismantling of the elements is not required.