Fremgangsmåte og anordning for tilvirkning av et betongprodukt

摘要

The invention relates to a method and apparatus for method for fabricating a concrete product in a substantially horizontal slip-form casting process, in which method concrete mix is fed into a slip-form mold of a defined cross section moving progressively in the casting process so as to give a concrete product of a desired shape. The method is characterized by the measurement of the input power need of the concrete mix feed and compaction, whereupon the travel resistance of the casting machine is controlled based on the value of a measured process variable. The invention can eliminate quality variations in a slip-form cast product that are caused by changes in the density of the concrete mix and the travel resistance of the casting machine.