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Method and apparatus for manufacturing concrete mass

  • US 7,384,180 B2
  • Filed: 12/01/2004
  • Issued: 06/10/2008
  • Est. Priority Date: 12/31/2003
  • Status: Active Grant
First Claim
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1. A method for manufacturing concrete mass, the method comprising:

  • manufacturing concrete mass in a mixer apparatus, the mixer apparatus comprising a primary mixer adapted to manufacture a concrete mass, the primary mixer mixing the concrete mass with a mixing element, the primary mixer apparatus comprising a mixer drive motor;

    driving the mixing element at two different mixing speeds;

    respectively measuring the torque caused to the mixing element and/or the power consumption of the mixer drive motor at two or more different mixing speeds;

    using the measurement results to determine at least two properties of the concrete mass, wherein the at least two properties are selected from the group consisting of the slump of the concrete mass, the toughness and the air content of the concrete mass.

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