پارامترهای هندسی فیبر بتن با مقاومت بالا فیبر تقویت شده و تاثیر آن بر مقاومت کششی خمشی پس از پیک باقی مانده

This paper studies the relation between fiber density and orientation and behavior under flexural tensile stress, through the use of CT-Scan technology. To do so, a high-strength steel-fiber reinforced concrete wall was constructed and 8 100 × 100 × 350 mm prismatic specimens were extracted from different sections of the wall, with the intention of revealing different fiber density and orientation values. First, the specimens were scanned using a CT-Scan, to obtain the real fiber density and orientation values. Subsequently, they were tested in a three-point-bending test, to obtain the curves tension –CMOD, and LOP values and residual strength under tension. Finally, empirical relations are shown between those values and fiber density and orientation.