Wedge splitting test gained popularity as a stable and simple method to predict the fracture mechanism properties of concrete specimens. The present research focuses on understanding the behavior of self-compacting concrete specimens made with and without steel fibers tested using wedge splitting test, later scanned under high resolution computed tomography. The contribution of hooked end steel fiber and coarse aggregates in fiber reinforced specimens was compared without steel fiber reinforced concrete specimens using high resolution computed tomography. As fracture takes place across the plane perpendicular to the splitting force, i.e. along the depth of specimens. High resolution computed tomography technique was adopted in visualizing the changes taking place across the matrix, coarse aggregate and steel fibers, along with the specimen’s depth. Datasets of the images, obtained from computed tomography, after images analysis and volume reconstruction, revealed a higher coarse aggregate and steel fiber participation in the failure region of without and with fibers specimens. Computed tomography investigation indicated a total of 23 coarse aggregate and 64 steel fibers participated in resisting the failure, during wedge splitting test of without and with fibers specimens. Therefore, high resolution computed tomography can be used in understanding, quantifying the participation of coarse aggregate and steel fiber in the failure plane, under fracture loads.

楔形劈裂试验作为一种稳定，简单的预测混凝土试样断裂机理性能的方法而受到欢迎。本研究的重点是了解使用楔形劈裂法测试有无钢纤维的自密实混凝土试样的性能，然后在高分辨率计算机断层扫描下进行扫描。使用高分辨率计算机断层扫描技术比较了没有钢纤维增强混凝土标本的钩端钢纤维和粗骨料在纤维增强标本中的贡献。随着断裂发生在垂直于分裂力的平面上，即。沿着标本的深度。采用高分辨率计算机断层扫描技术，可以观察到整个基体，粗骨料和钢纤维的变化以及样品的深度。在对图像进行分析和体积重建后，从计算机断层扫描获得的图像数据集显示，在有无纤维样品和有纤维样品的破坏区域中，较高的粗骨料和钢纤维参与率。计算机断层扫描研究表明，在有和无纤维试样的楔形劈裂试验中，共有23根粗骨料和64根钢纤维参与了抗破坏。因此，高分辨率计算机断层扫描可用于理解，量化在断裂载荷下粗骨料和钢纤维在破坏平面中的参与。