Abstract
It is important to understand the rheological properties of an extrudate of short fiber-reinforced cementitious (SFRC) composites to achieve a successful extrusion of SFRC composites. This paper presents the preliminary results on the study of the rheology field of SFRC extrudate. The paper started with the analysis of cementitious flows in a shallow flight extruder in which the height of the flight to the width of the channel ratio is small (H/W 0.1). The differences between the results predicted by the Newtonian theory and those by the nonlinear viscoelastic theory were also investigated and analyzed.
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