Here is an announcement about the concrete pumper that is being used over in Japan to cool the fuel at the nuclear reactor. This baby as you can read, was being sent to another customer in South Asia until this disaster happened and then Fukushima apparently really needed it badly so they sent it there. Also, for those of you who don’t get to read the fine print- this type of machine was used in Chernobyl to entomb the plant in concrete.
It sounds like Japan has outfitted the arm with a camera so that engineers can view the results. Here is Putzmeister’s news release:
A truck-mounted concrete pump consists of a truck, a support device, a piston pump and a boom with 4 to 6 arm hinges. Putzmeister offers booms with vertical reaches of between 20 m and 70 m. And with the M70, Putzmeister offers the longest boom that is in use in the world.
At the reactor in Fukushima, workers are currently using a M58-5 truck-mounted concrete pump (produced in Aichtal near Stuttgart) that has a vertical reach of 58 m and a 5-arm boom in order to support the cooling of the damaged cooling pools. The advantage of this is that cooling water can be fed a great distance over the destroyed buildings and can be fed to exactly where it is required.
Picture 1627-1: An example of a Putzmeister M58-5 being used for high-rise concreting. The concrete is fed through a truck mixer
Since then, Putzmeister concrete pumps have continued to prove their effectiveness, even outside of their original purpose, when crises have occurred.
Picture 1627-3: Putzmeister brochure from 1986
Picture 1627-5: 5 Putzmeister truck-mounted concrete pumps fill the steel moulds (arranged in a pyramid shape) for the new protective walls
Press information no: 1627, date: 22 March 2011
Putzmeister Concrete Pumps GmbH
D-72631 Aichtal, Germany
Tel.: +49 7127 599-0
Fax: +49 7127 599-140
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