This study evaluated the influence of nozzle shapes in the orientation of fibers in cementitious materials. The nozzle shapes involved in the study are conventional, balded, and tapered circulars. The results showed that both the bladed and tapered nozzles increased the control performance of fiber orientation compared to the conventional nozzle. In particular, bladed nozzle was more effective in controlling the fiber orientation.

Abstract
 1. 서 론
 2. 해석방법
 3. 해석결과
 4. 결 론
 참고문헌

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