The International Information Center for Structural Engineers

Friday, 09 May 2014 13:59cat

Production unit of concrete in Patras

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Concrete Production Unit Interbeton Inc., Patras

The photos of this text are taken by Dimitris P. Zekkos, during the excursion of the second-year students of the Department of Civil Engineering in Patras University, organized by the Assistant Professor T. Triantafyllou on March 2000.


This unit produces around 150 cubic meters of concrete in a daily basis.


First of all, the aggregates are gradated in three kinds (gravel, sand), based on their volume which are kept in an area above the machine of the picture. A bulldozer picks a quantity of each part and puts it into the machine which is divided into 6 parts (two parts for each kind). Each part ends in an opening at the bottom. The amount of each gradated part, corresponds to a time (controlled by a computer) during which it''s allowed to pass through the opening. The engineer inserts the quantity and the characteristics of the concrete needed and the computer calculates the amount of cement, aggregates and water. 


The water of mud of the first tank goes to a factory for the production of cement. The water of the third tank can be used for the cleaning of the unit. 



With this technique the aggregates are being transferred to the cement mixer where they are mixed with cement and water. Then, as shown in the picture below, a vehicle takes the concrete and sends it to the customer.




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