Study of Mechanical Behavior of Chips Reinforced Concrete

Djebali, S.; Bouafia, Youcef; Atlaoui, Djamel; Bilek, Ali

doi:10.4028/www.scientific.net/amr.324.360

Cited by 7 publications

(5 citation statements)

References 3 publications

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“…For W less than 1%, the sand over gravel ratio S/G =1 shows better characteristics. This result is in good agreement with the one given in [3]. that of the classic fiber one represents 56% for tension, 100% for compression, 74% for bending and 30% for splitting.…”

Section: Key Engineering Materials Vols 592-593supporting

confidence: 93%

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Mechanical Behavior of Steel-Chips-Reinforced Concrete

Djebali

Bouafia

Larbi

et al. 2013

KEM

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This work is a part of an industrial waste development program. It is devoted to the study of recyclability of chips resulting from the machining of steel parts as reinforcement for concrete. We are particularly interested in this study in the rheological behavior of chips reinforced fresh concrete and its mechanical behavior at young age. The evaluation of the workability indicates that the sand over gravel optimal ratios (S/G), corresponding to the composite minimum flow time, are S/G = 0.8 and S/G = 1. The study of the chips content (W) influence on the workability of the concrete shows that the flow time and the optimal ratio S/G increase with W. Mechanical characterization tests (direct tension, compression, bending and splitting) show that mechanical properties of chips reinforced concrete are comparable to those of the two selected reference concretes (concrete reinforced with conventional fibers: EUROSTEEL fibers corrugated and DRAMIX fibers). Chips provide to control concrete a significant increase in strength and some ductility in the post-failure behavior of the composite. Recycling chips as reinforcement for concrete could be thus favorably considered.

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Section: Key Engineering Materials Vols 592-593supporting

confidence: 93%

“…Characterization by Simple Compression Test. The stress-strain curves, describing the compression behavior of chips reinforced concrete are identical to those given in [3]. The addition of chips in a small percentage (W = 0.4%) provides a slight increase in resistance (18%) and rigidity.…”

Section: Resultsmentioning

confidence: 61%

Mechanical Behavior of Steel-Chips-Reinforced Concrete

Djebali

Bouafia

Larbi

et al. 2013

KEM

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“…Experimental studies have been conducted to replace the reinforcements of reinforced concrete with bers capable of providing good tensile, exural, and shear strength to concrete [13][14][15][16][17][18][19][20][21][22][23][24][25][26]. Initially, researchers attempted to increase the mechanical characteristics of concrete such as compressive strength and exural strength by adding bers, but the result obtained was limited [27].…”

Section: Introductionmentioning

confidence: 99%

Bending of concrete slabs reinforced by recycling waste

ATLAOUI,

MANSOURI,

HASSANI

2024

Preprint

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This work focuses on the experimental study of mechanical behavior through "3-point bending" tests on concrete slabs reinforced with two types of fibers: metallic fibers (MF) and grids based on polypropylene fibers (PPF). The metallic fibers are sourced from machining waste of steel parts, randomly dispersed within the concrete, while the grids consist of polypropylene fibers. Bending tests are conducted on slabs with dimensions [25x50x7] cm³. Compression tests are also carried out on cylinders with a diameter of Ø160 mm and a height of H320 mm. The fibers are characterized in terms of mechanical strength and pull-out resistance. The concrete composition is determined using the experimental method known as the "Dreux-Gorisse" method. For this study, five contents of metallic fibers (MF) are selected (W = 0.2%, W = 0.4%, W = 0.6%, W = 0.8%, and W = 1%). A control concrete (BT) with a fiber content of 0% (W = 0%) is prepared to serve as a reference. Two variants of polypropylene fibers, small mesh (PPF/SM) and large mesh (PPF/LM), are also included. By comparing and contrasting the results obtained with those of Mohsin Adeel Waris et al [37], it is evident that adding metallic fibers (MF) to concrete at a fiber percentage (W = 0.8%) enhances both strength and stiffness better than adding polypropylene grid fibers, as well as better than the combination of steel and rubber fibers for volumes (Vf = 0.1(SF) + 2% (RF)) [37]. The metallic fibers used restrain cracking due to tilting.

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“…According to the authors, the calculation of the equilibrium of the forces in a cracked section makes it possible to know the resistance capacity in flexion. An experimental study of the mechanical behavior of reinforced concrete with chips was made by Djebali et al (2011) using direct tensile tests. The authors concluded that the fibers substantially improved the stiffness and the strength of the concrete.…”

Section: Introductionmentioning

confidence: 99%

Effect of Recovered Fibers on the Behavior of Concrete in Tension

Atlaoui,

Adjrad,

Bouafia

2023

Slovak Journal of Civil Engineering

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This study evaluates the performance of concrete under the effect of the addition of non-straight fibers recovered during the machining of steel parts and then studies the effect of the addition of corrugated fibers (chips) on their behavior in direct traction of the fiber concrete. In order to characterize the mechanical behavior and tearing of these fibers, three lengths of fibers were used (4 cm, 5 cm, and 6 cm); for each length we varied the percentage by volume (0.3%, 0.5%, 0.8%, 1%, and 1.2%). To make a comparative study, a second series of tests was carried out with control concrete (BT) without any fibers of the same composition. The results of the tests carried out indicate that the resistance and stiffness are significantly improved and that the fibers imparted significant ductility to the material compared to the control concrete. It was also observed that the percentage of fibers significantly influences the appearance of cracks. Moreover, with an increase in the percentage of fibers from 0.3% to 0.8%, the resistance increases, but beyond a content of 0.8%, the mechanical characteristics decrease.

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Study of Mechanical Behavior of Chips Reinforced Concrete

Cited by 7 publications

References 3 publications

Mechanical Behavior of Steel-Chips-Reinforced Concrete

Mechanical Behavior of Steel-Chips-Reinforced Concrete

Bending of concrete slabs reinforced by recycling waste

Effect of Recovered Fibers on the Behavior of Concrete in Tension

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