Analysis of Orientation and Distribution of Steel Fiber in Fiber Reinforced Concrete Column by Micro-CT Scanning

Micro-CT 스캐닝을 통한 섬유보강 콘크리트 기둥내부 강섬유의 배향성 및 위치분포 분석

In this study, analysis of steel fiber orientation and distribution inside fiber reinforced concrete was performed using micro-CT scanning technology. Samples were extracted from the column according to its height and distance from the mold. Samples were scanned in order to attain the image of steel fibers then region of interest were obtained by binarization process. By calculating the principle moment of inertia of each fiber, direction vector, scale, center postion, volume, and surface area were gained in order to analyze the orientation and distribution. Most of the fibers inside the column tended to be perpendicular to the main axis of the column. Moreover, most of the fibers appeared at the bottom of the column and at the position where it is farthest from the mold.