Fast Grouting Operations at Amrumbank

29/08/2016

Fast Grouting Operations at Amrumbank
Working in rapid, continuous shifts ITW teams have successfully completed the last grouting operation at Amrumbank West Offshore Wind Farm in Germany with a high speed efficiency rate. The connections between transition piece and monopile have been grouted with the ultrahigh performance cementitious based material Ducorit® and the installation completed by highly skilled supervisors.

For the Amrumbank project (80 connections) ITW delivered another turnkey grouting solution including Ducorit®, their newly developed equipment and with the installation of the product performed by their own supervisors.

In 2014 the first 19 connections were grouted while the rest of the 61 connections were completed in the period 19th April to 21th May, 2015 with an average of 2 grouting operations per day.

The installation of the monopiles and transition pieces was performed from the jack-up crane vessel ‘MPI Discovery’ and the grouting part executed from Far Sapphire a DP2 grouting vessel equipped with an Ampelmann system. The execution of the foundation installation and the grouting operation from two separate vessels is still relatively uncommon, but ITW is experienced in this method of grouting.

“We do not prefer one solution rather than the other but at this project it has really worked out well”, says Soren Munk, ITW Supervisor and he continues, “It has been a pleasure working on the Amrumbank project. The setup allowed us to work very intensively for a shorter period”.

ITW’s greatest strength – besides being able to deliver the ultrahigh performance grout – is that ITW deliver a turnkey grouting solution including for example; project management, planning, newly developed equipment, highly skilled supervisors to perform the installation, as well as test sampling and documentation. This is probably one of the reasons why 70 % of all offshore wind turbines in Europe contain Ducorit® grout as a crucial element.

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