[Construction - Section 152]
TYPES
The transport concrete technology is so widespread, because they are against a concrete production directly to the construction site, not just a rationalization, but also a demonstrable quality control.
Depending on storage and feeding of concrete aggregates, there are three main types:
1st the tower system (or the so-called vertical plant): The various surcharges store arranged in a star chamber segments, which have a combined turmartigen building above the mixer- and balance stage. The tending of the tower via a long climb band, a bucket elevator, or more rarely a lift. The feeding of supplements to dosage weighers and the mixer is done by gravity. The advantage is a high performance, as well as a protection of supplements from the weather. However, this design even with higher investment.
2nd the batch plant or horizontal location: The various supplements stored in a line dosage, which consists of several behind one after another laying chambers together. The chambers are filled side of a machine. Among the chambers is a dosage that the surcharges recipe to a conveying instrumentality, and then to the mixer terminal.
3rd the stern plant or scrapper plant: The surcharges are arranged in a star chambers open accumulated, which is a central point around are arranged. The center is located above a scrapper, the various groups to a central opening moves. From there, the surcharges on a scale, usually at the same time as conveying instrumentality for tending the mixer. This plant will now only apply to small installations.