The Netherlands is full of energy transition. Flip open a newspaper or read a news site and you cannot get around it: we are all committed to more sustainable forms of energy. One of the results is the ever-increasing number of wind turbines. Hendriks supplies various formwork solutions for this. Dura Vermeer Infra rural Projects benefits from the flexibility of this.
Windmills. They shoot up like mushrooms in all parts of the country. Speed and flexibility are of the essence in realisation. Jan Wesdijk of Dura Vermeer Materieel knows this better than anyone else. "Our company has taken on a large number of projects. The sooner the mill is up, the sooner it will pay for itself. Flexibility plays a role especially for the foundation. After all, not all wind turbines are the same and therefore different requirements are placed on the foundation all the time. The trick is to use a formwork that allows a suitable foundation to be made again and again."
Hendriks realised early on that the wind turbine market was interesting. The company therefore invested in building up expertise and experience in formwork technology for wind turbines. That knowledge is now proving to be of great value to contractors. "In cooperation with Hendriks, a steel formwork for wind turbine foundations was developed, the diameter of which can be varied for each wind turbine. With the formwork, foundations with a diameter of around 15 - 23 metres can be assembled. The diameter can thereby be varied in half-metre increments. Thus, the same formwork can be used for several wind turbine projects. The height of the formwork can also be variably adjusted from around 1.80 m to 2.70 m."
The steel wind turbine formwork is made up of individual panels 6 m long. "The individual panels can be easily assembled. By using more or fewer panels and supplementing them with 1-metre or 3-metre fitting pieces, the diameter of the formwork can be easily increased or decreased. And with a variable diameter of 15 to 23 metres, the formwork can be used for a wide range of projects." The circular formwork is fitted with flush hatches and is centreless; props are not required. For durability reasons, the formwork has a 6 mm thick skin plate.
Hendriks also supplied the fixed or adjustable round formwork with a diameter that can be set in 10-cm increments between 5 and 9 m. Hendriks also designed the parking/transport frames, platforms for safely reaching the inside of the anchor cage as well as the insulation on the outside of the formwork and the magnetic supports for creating the bevelled edge.
When asked about the cooperation with Hendriks, Jan responds enthusiastically. "That cooperation is, in a word, top-notch. For a project in Moerdijk where seven foundations are to be poured, we bought two formworks. They function fantastically and guarantee an excellent end result. Within a few hours, we have the formwork ready for pouring. The procedure here is very structured: after pouring the working floor, the reinforcement is set and the formwork is put in place. Then the concrete can be poured. A walking platform and railings and ladders on the edge of the formwork serve as safety equipment. And with the smart adjustment facility, we can make the Netherlands a little greener even faster."
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