Non-Destructive Evaluation of Fibers Orientation in Fiberconcrete Prism
International Scientific Conference "Civil Engineering’13": Abstracts 2013
Vitālijs Zaharevskis, Artūrs Mačanovskis, Andrejs Krasņikovs

Macro crack propagation in mechanically loaded steel fiber reinforced concrete is characterized by fibers bridging the crack, providing resistance to its opening. Suppose about homogeneous distribution of spatially arbitrary oriented fibers in a volume is leading to homogeneous spatially arbitrary distributed fibers orientation on the surface of the crack. At the same time high experimental results scatter in fiberconcrete bending tests is experimentally observing, proving non-homogeneous fibers distribution in a volume and according to spatial orientations. One possibility to solve this problem is to use fiberconcrete with internal oriented fibers structure. In this work fiberconcrete prisms with oriented (in each prism longitudinal direction) short steel fibers structure were elaborated [1]. Two metallic combs were prepared, mould with fiberconcrete was placed on the shaking table and fibers in the mould were combed. Fibers orientation results were controlled by X-ray analysis and by ultrasonic device. All prisms were loaded by 4 point bending and Load bearing – crack opening curves were obtained.


Atslēgas vārdi
steel fibers, concrete prisms, non-destructive testing, four point bending

Zaharevskis, V., Mačanovskis, A., Krasņikovs, A. Non-Destructive Evaluation of Fibers Orientation in Fiberconcrete Prism. No: International Scientific Conference "Civil Engineering’13": Abstracts, Latvija, Jelgava, 16.-17. maijs, 2013. Jelgava: LLU, 2013, 20.-20.lpp. ISBN 9789984480480.

Publikācijas valoda
English (en)
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