Behavior simulation of a concrete mix in a ­turbine pan mixer­

Performance optimization of concrete mixers is an issue of great significance in many industrial technologies. Using functional models for rheological properties of fresh concrete, which are described below, a mixing simulation of turbine pan-mixer, is presented.

1. Introduction

Pan concrete mixers use various types of mixing methods. Commercially available mixers used in the ­concrete industry rely on the same principle: a ­cylindrical vessel contains the constituents to be mixed, and one or several sets of blades rotate inside the vessel to mix the materials; another blade scrapes the wall of the vessel [1-2]. In some mixers, the rotational axis of the blades coincides with the vessel axis, whereas in planetary mixers, there is an axial offset to allow for a double rotation: the blades rotate around their axes and around the axis of the vessel [3-6]....

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