On 25 January 2011, the concrete pumps began pouring the first concrete floor at the 41st floor.
A concrete pump was used to pump water into the spent fuel pond in unit 4.
Putzmeister is a German manufacturer of concrete pumps.
A concrete pump is a machine used for transferring liquid concrete by pumping.
There are two types of concrete pumps.
The first type of concrete pump is attached to a truck.
They are a revolutionary alternative to truck-mounted concrete pumps.
As of 2011, an even larger concrete pump was built and sent to Japan's post-quake relief effort.
For concrete pumps technology in general see High-density solids pump.
From 31 March, additional sea water was added to the spent fuel pool, initially by using a concrete pump.