<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>This article studies the behavior of concrete beams reinforced with metal fibers (chips) randomly arranged in concrete, to improve ductility and bending stiffness and limit crack openings. These fibers come from machining waste from steel parts. The fibers are characterized for mechanical resistance and tearing. Three series of tests were carried out for languor respectively L = 4 cm, L = 5 cm and L = 6 cm. Bending tests (three-point bending) are carried out on prismatic specimens of dimensions [10x20x120] cm<sup>3</sup>. Compression tests are carried out on cylinders with a diameter of Ø16 cm and a height of H32 cm in order to determine the mechanical properties of the concrete used. The composition of the concrete is determined by the experimental method known as “Dreux-Gorisse”. Two fiber contents are retained for this study (W= 0.6% and W= 0.8%) and a BT control concrete (W=0%) with W: fiber contents in the concrete, of the same composition as the matrix is developed for serve as a reference. The confrontation and comparison of the different results obtained show that the fibers with languor L=6 cm confer significant ductility to the material after cracking of the concrete, better than the other languor’s (L= 4 cm and 5 cm) with numbers of undulations (spirals) n=3.5and 6. Also, the fibers used limit bending cracks and improve strength and rigidity.</p>
</abstract>

This article studies the behavior of concrete beams reinforced with metal fibers (chips) randomly arranged in concrete, to improve ductility and bending stiffness and limit crack openings. These fibers come from machining waste from steel parts. The fibers are characterized for mechanical resistance and tearing. Three series of tests were carried out for languor respectively L = 4 cm, L = 5 cm and L = 6 cm. Bending tests (three-point bending) are carried out on prismatic specimens of dimensions [10x20x120] cm3. Compression tests are carried out on cylinders with a diameter of Ø16 cm and a height of H32 cm in order to determine the mechanical properties of the concrete used. The composition of the concrete is determined by the experimental method known as “Dreux-Gorisse”. Two fiber contents are retained for this study (W= 0.6% and W= 0.8%) and a BT control concrete (W=0%) with W: fiber contents in the concrete, of the same composition as the matrix is developed for serve as a reference. The confrontation and comparison of the different results obtained show that the fibers with languor L=6 cm confer significant ductility to the material after cracking of the concrete, better than the other languor’s (L= 4 cm and 5 cm) with numbers of undulations (spirals) n=3.5and 6. Also, the fibers used limit bending cracks and improve strength and rigidity.

Effect of Chipped Fiber Languor on the Bending Behavior of Concrete Beam Elements

Department of Civil Engineering, Faculty of Construction Engineering

Laboratory of Modelling of Materials and Structures in Civil Engineering (L2MSGC)

University ‘Mouloud Mammeri’ of Tizi-Ouzou

Department of Civil Engineering, Faculty of Construction Engineering, Environment and Planning Geomaterials Laboratory (LGEA)

Journal of Applied Engineering Sciences

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

This article studies the behavior of concrete beams reinforced with metal fibers (chips) randomly arranged in concrete, to improve ductility and bending...

Effect of Chipped Fiber Languor on the Bending Behavior of Concrete Beam Elements

Publié en ligne: 06 déc. 2023

Pages: 155 - 162

Reçu: 21 juin 2023

Accepté: 10 juil. 2023

DOI: https://doi.org/10.2478/jaes-2023-0020

Mots clés
Concrete, Reinforcement, Chipped Fibers, Characterization, Bending, Experimentation, Ductility

© 2023 D. Atlaoui et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Effect of Chipped Fiber Languor on the Bending Behavior of Concrete Beam Elements

Publié en ligne: 06 déc. 2023

Pages: 155 - 162

Reçu: 21 juin 2023

Accepté: 10 juil. 2023

DOI: https://doi.org/10.2478/jaes-2023-0020

Mots clésConcrete, Reinforcement, Chipped Fibers, Characterization, Bending, Experimentation, Ductility

© 2023 D. Atlaoui et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Mots clés
Concrete, Reinforcement, Chipped Fibers, Characterization, Bending, Experimentation, Ductility