Blast resistance characteristics of concrete with different types of fibre reinforcement

Drdlová, Martina; Buchar, J.; Krátký, Josef; Řídký, Radek

doi:10.1002/suco.201400080

Cited by 36 publications

(20 citation statements)

References 13 publications

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“…Drdlová et al conducted the experiment and nonlinear analysis to study the effect of various types of fibers under blast loads. Any fiber type enhanced the blast resistance which was related with tensile and flexural strengths of fiber‐reinforced concrete.…”

Section: Literature Reviewmentioning

confidence: 99%

“…Because crimped wire mesh is being used as much as reinforcing bars in walls and slabs, an experimental research using crimped wire mesh is highly important and necessary (Figure ). Particularly, there has been only a few research on wire mesh‐reinforced concrete (WMRC) with steel fibers, which has shown potential to improve the mechanical properties of concrete such as ductility, toughness, and bond strength . Therefore, this paper deviates from the evaluation of impact resistance of concrete which has largely taken a traditional view of material, but is an outcome of an experimental research project in evaluating the impact resistance of concrete conditioning on the presence or absence of crimped wire mesh, evaluating the impact resistance of steel fiber‐reinforced concrete (SFRC), and gauging the impact resistance of wire mesh‐ and steel fiber‐reinforced concrete panels.…”

Section: Introductionmentioning

confidence: 99%

“…Particularly, there has been only a few research on wire mesh-reinforced concrete (WMRC) with steel fibers, which has shown potential to improve the mechanical properties of concrete such as ductility, toughness, and bond strength. 4,[7][8][9] Therefore, this paper deviates from the evaluation of impact resistance of concrete which has largely taken a traditional view of material, but is an outcome of an experimental research project in evaluating the impact resistance of concrete conditioning on the presence or absence of crimped wire mesh, evaluating the impact resistance of steel fiber-reinforced concrete (SFRC), and gauging the impact resistance of wire mesh-and steel fiber-reinforced concrete panels. Specifically, this study aims to evaluate (a) the effect of the presence or absence of Discussion on this paper must be submitted within two months of the print publication.…”

Section: Introductionmentioning

confidence: 99%

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High‐velocity impact experiment of concrete panels reinforced with crimped wire mesh and steel fibers

Kim

Kang

Jang

et al. 2018

Structural Concrete

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This experimental research aims to evaluate the impact resistance of the crimped wire mesh‐ and steel fiber‐reinforced concrete panels that receive the impact load of the high‐velocity projectile. The concrete panel's impact resistance was evaluated by using variables such as the steel fiber volume fraction, presence of crimped wire‐mesh reinforcement, thickness of panel, impact velocity, and the size of aggregates. The impact resistance was evaluated by using the nondimensional impact factor where various variables could be integrated. Although the improvement of the impact resistance particularly regarding its penetration depth caused by the steel fiber mix was insufficient, there was a visible effect of improvement in impact resistance for scabbing and perforation. This occurred as the steel fiber had a bridging effect within the concrete matrix. Moreover, when reinforced with crimped wire mesh, the area loss of the front and rare face decreased. While it was effective for perforation and scabbing, it was insufficient for improving the resistance of penetration. Meanwhile, there were some cases where a splitting bond failure occurred along the cover of the rear face in a few specimens. The outcomes suggest that if steel fibers are mixed with the wire mesh‐reinforced concrete panels, this, in turn, increases the splitting bond strength based on a bridging effect, thereby preventing a splitting bond failure.

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Section: Literature Reviewmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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High‐velocity impact experiment of concrete panels reinforced with crimped wire mesh and steel fibers

Kim

Kang

Jang

et al. 2018

Structural Concrete

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“…For the blast load, as it is extremely fast phenomenon, this classical approach cannot be fully adopted, but the hybrid fibre reinforcement is still beneficial, because the same volume content of waste fibres contains more fibres than the commercial ones, so the fibres can be more homogeneously distributed within the concrete, with fewer unreinforced spaces. [15,16] In this model, thicker and longer fibres help to keep the overall integrity of the material, whereas the shorter and thinner fibres protect the slab from the fragmentation. All the SIFCON specimens (except for SIF 5.0%) outperformed ultra-high-performance concrete, which is caused primarily by the higher fiber amount contained in SIFCON specimens.…”

Section: Fig 5 Example Of the Output Of The Dynamic Deflection Measmentioning

confidence: 99%

Blast Resistance of Slurry Infiltrated Fibre Concrete with Waste Steel Fibres from Tires

et al. 2018

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Abstract. The utilization of waste steel fibres (coming from the recycling process of the old tires) in production of blast resistant cement based panels was assessed. Waste fibres were incorporated in slurry infiltrated fibre concrete (SIFCON), which is a special type of ultra-highperformance fibre reinforced concrete with high fibre content. The technological feasibility (i.e. suitability of the waste fibres for SIFCON technology) was assessed using homogeneity test. Test specimens were prepared with three volume fractions (5; 7.5 and 10 % by vol.) of waste unclassified fibres. SIFCON with industrial steel fibres (10% by vol.) and ultra-highperformance fibre concrete with industrial fibres were also cast and tested for comparison purposes. Quasi-static mechanical properties were determined. Real blast tests were performed on the slab specimens (500x500x40 mm) according to the modified methodology M-T0-VTU0 10/09. Damage of the slab, the change of the ultrasound wave velocity propagation in the slab specimen before and after the blast load in certain measurement points, the weight of fragments and their damage potential were evaluated and compared. Realized tests confirmed the possibility of using the waste fibres for SIFCON technology. The obtained results indicate, that the usage of waste fibres does not significantly reduce the values of SIFCON flexural and compressive strength at quasi-static load -the values were comparable to the specimens with industrially produced fibres. With increasing fibre content, the mechanical parameters are increasing as well. Using of the waste fibres reduces fragmentation of SIFCON at blast load due to the fibre size parameters. Using of low diameter fibres means more fibres in the matrix and thus better homogeneity of the whole composite with less unreinforced areas. Regarding the blast tests, the specimen with waste steel fibres showed the best resistance and outperformed also the specimen with commercial fibres. Using of waste fibres in SIFCON technology can reduce the price of this composite by 70 % by keeping the original SIFCON extraordinary properties, which makes it very competitive material in the concrete area.

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“…An analytical model for the perforation of unreinforced concrete targets by a hemispherical hard projectile with an impact velocity range between 250 and 850 m/s was developed by Khazraiyan et al in which numerical modeling was performed in LS‐DYNA using Johnson–Holmquist concrete model for validating the analytical results where good agreement of analytical results with numerical simulations were observed . Experimental research for the development of advanced fiber‐reinforced concrete intended for explosion‐resistant applications was carried out with the aim of contributing to understanding the effect of different types of reinforcement on the behavior of high‐performance fiber‐reinforced concrete subjected to a blast load by Drdlová et al Various types of reinforcement such as dispersed fiber—metallic, carbon, mineral and polymer—in different lengths (6–55 mm) and combinations were used, while the volume content (3%) of fibers was kept constant. Physico‐mechanical and explosion tests were performed on prismatic and slab‐shaped specimens and the effect of different kinds of reinforcement on the blast resistance and mechanical performance of the concrete samples was evaluated and the material characteristics and explosion test data obtained were used to create a FE model in LS‐DYNA.…”

Section: Introductionmentioning

confidence: 99%

Response of reinforced concrete beams to high‐velocity fluid impact. Part II: Numerical modeling and simulation

Korucu

Irfanoglu

2017

Structural Concrete

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Fluid impact tests on reinforced concrete beams with rectangular or circular transverse reinforcement were modeled and simulated using explicit finite element analysis software, LS‐DYNA. The mid‐span displacements were measured and compared with the results of simulations. The objective was to test the accuracy and fidelity of the numerical modeling and simulation approach and to confirm that damage caused by fluid impact on the beams can be estimated with a reasonable accuracy over a wide range of impact velocity.

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Blast resistance characteristics of concrete with different types of fibre reinforcement

Cited by 36 publications

References 13 publications

High‐velocity impact experiment of concrete panels reinforced with crimped wire mesh and steel fibers

High‐velocity impact experiment of concrete panels reinforced with crimped wire mesh and steel fibers

Blast Resistance of Slurry Infiltrated Fibre Concrete with Waste Steel Fibres from Tires

Response of reinforced concrete beams to high‐velocity fluid impact. Part II: Numerical modeling and simulation

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