[1152] EVALUATING CONCRETE RHEOLOGY USING AN INTENSIVE CONCRETE MIXER WITH HELICAL IMPELLER RHEOMETRY
Keywords:Concrete rheology、helical impeller rheometer、coaxial cylinder rheometer、yield stress、plastic viscosity
Acknowledging the limitations slump test to measure concrete workability, this paper advocates for a shift towards evaluating workability using scientific principles of concrete rheology. This study introduces a newly developed an intensive concrete mixer with a helical impeller rotor tool, that could serve as a rheometer. Preliminary assessment confirms the capability of the helical impeller rheometer to evaluate concrete rheology similar to that of coaxial cylindrical rheometer, which is the foundational principle of concrete rheology measurement. The study also lays the groundwork for exploring additional functions like measuring optimum mixing time and thixotropy.