Method and apparatus for manufacturing concrete mass
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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Abstract
Method and apparatus for manufacturing concrete mass, the concrete mass being manufactured in a mixer, and the torque caused by the mixing of the concrete mass to the mixing elements used for mixing of the concrete mass and/or the power consumption of the drive of the mixer, being measured in said method. The torque caused to the mixing elements of the concrete mass and/or the power consumption of the drive is measured at least with two different mixing speeds, and based on the measurement results, the properties of the concrete mass are determined.
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Citations
15 Claims
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1. A method for manufacturing concrete mass, the method comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus for manufacturing concrete mass, the apparatus comprising:
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a mixing tank of concrete mass; a primary mixer adapted to manufacture a concrete mass; elements for mixing the concrete mass; a drive motor; elements for changing the mixing seed of the mixing elements of the concrete mass; elements for measuring the torque caused by the mixing of the concrete mass with the primary mixer andlor for measuring the power consumption of the drive motor of the primary mixer at two different seeds during manufacturing of the concrete mass and determining 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; and elements for determining the at least two properties of the concrete. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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Specification