As part of a current wind energy project of Jinke New Energy, RATEC technology was installed at two locations for the production of precast concrete elements used in the construction of 120-m high towers for 2 MW wind turbines. The Chinese company Jinke New Energy develops and builds systems for generation of wind, solar, biomass and other alternative sources of energy.

The main challenge for the customer was the efficient filling of the roughly 200 moulds at each production site. The tight reinforcement of the elements meant that filling from the top was not possible. It was also necessary to optimise surface quality, reduce the crane capacity needed in production and to generally accelerate the production processes.

This was where RATEC was able to impress with its Upcrete technology. ?It has already shown itself to be an effective solution in many areas, especially when it comes to the production of complex volumetric elements. At the core of the process is our special pump technology from below with the help of our UPP100,? emphasised J?rg Reymann, Managing Director, the RATEC/Reymann Group.

The two UPP100 pumps were delivered on a specially-fitted transport vehicle which ensured trouble-free logistics at the site. Concrete is supplied using a special transport trolley that is connected directly to the pump, thus eliminating the need for a concrete bucket. This made it possible to achieve the goal of reducing crane capacity for the filling. Pumping from below ensures a maximum of surface quality because air is pushed upward out of the mould, virtually eliminating the occurrence of air pockets in the concrete.