Durability of steel fiber reinforced self-compacting concrete

Frazão, Cristina Maria Vieira; Camões, Aires; Barros, Joaquim A. O.; Gonçalves, Delfina

doi:10.1016/j.conbuildmat.2015.01.061

Cited by 163 publications

(80 citation statements)

References 15 publications

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“…Concrete permeability increases with the increase in crack width, which facilitates the occurrence of corrosion of steel reinforcements. In this context, the steel fibers are provided as a solution to this problem, since the maximum crack width can be limited due to the fiber reinforcement mechanisms and postcracking resistance and the concrete ductility can be considerably enhanced .…”

Section: Introductionmentioning

confidence: 99%

High temperature effect on the mechanical behavior of steel fiber reinforced self‐compacting concrete containing ground pumice powder

Karataş

Dener

Benli

et al. 2019

Structural Concrete

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This study reports the results of high temperature effects on the properties of steel fiber reinforced self-compacting concrete (SFRSCC) fabricated by replacing cement with ground pumice powder (GPP) as mineral additive at different substitution rates. The mixtures had the same amounts of steel fiber and the binding material with constant water to binder (w/b) ratio of 0.37. In this context, five SFRSCC series were prepared by replacing Portland cement (PC) with 5, 10, 15, and 20% of GPP including the control mix. Sixty cube samples with a dimension of 150 × 150 × 150 mm were fabricated and exposed to curing aged 3, 7, 28, and 90 days to conduct compressive strength tests and a total of 100 × 100 × 350 mm 18 beam samples cured at 28 days were fabricated to perform the flexural strength tests. Durability tests were performed on the 18 cube samples of 100 × 100 × 100 mm subjected to water curing at 28 days. In addition, the relation between the compressive strength and Ultrasonic Pulse Velocity (UPV) of SFRSCC samples was compared aged 1, 3, 14, and 28 days. Samples of SFRSCC were subjected to the temperatures of 200, 400, 600, and 800 C after being cured at 28 days then cooled to room temperature before conducting tests. The results revealed that the compressive strength of all SFRSCC mixes enhanced at 200 C by 5.34 and 3.55% for control and GPP10 mixes respectively. The strength loss of mixes incorporating GPP is about 60% at 800 C. K E Y W O R D Scompressive strength, elevated temperature, ground pumice powder, steel fiber reinforced selfcompacting concrete, UPV

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Section: Introductionmentioning

confidence: 99%

High temperature effect on the mechanical behavior of steel fiber reinforced self‐compacting concrete containing ground pumice powder

Karataş

Dener

Benli

et al. 2019

Structural Concrete

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“…In the case of high-performance concrete elements, [4], the addition of different ratios of steel fibre to the concrete mix can lead to an increase of the initial cracking force, while the stiffness and energy dissipation capacity may be increased by up to 40%. Many studies have been developed on Self-Compacting Steel Fibres Reinforced Concrete (SCSFRC), [5], [6] and the results are promising. Thus by adding a large amount of fibre in the mixture, the sudden opening of a crack can be changed in a more stable process, as compared to plain concrete.…”

Section: Introductionmentioning

confidence: 99%

08.39: Experimental investigations on performance enhancement of composite steel concrete shear walls by using steel fibre reinforced concrete

et al. 2017

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The paper presents further results of an experimental program that was conducted at the Politehnica University Timisoara, studying the behaviour of Composite Steel-Fibre-Reinforced-Concrete shear Walls (CSFRCW) with partially encased profiles. Use of such shear walls represents a widespread solution for providing a lateral load resisting structural system, especially in the case of medium and high-rise buildings placed in seismic areas. As previous theoretical and experimental studies have proved the performance of such system, the foremost objective of the experimental program consisted in identifying innovative solutions for composite steel-concrete shear walls with enhanced performance, as steel fibre reinforced concrete which was used in order to replace traditional reinforced concrete. The program consisted in tests on 6 specimens designed as 1:3 scale steelconcrete composite elements, leading to an experimental matrix that enabled complex comparisons of various solutions. Thus, a steel reinforced concrete shear wall (without any encased profiles) was used as reference, configuration/arrangement of steel profiles and ratios of steel fibre reinforcement were varied within the other five specimens. The effective stiffness, strength and ductility is evaluated using the experimental results.

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“…Consequently, the corrosive process is not sufficient to split the concrete [27]; (2) if the crack width is thinner than about 0.1 mm than the steel fiber will not corrode. If the cracks width is ranged between 0.1 mm to 0.5 mm, a little corrosion of the steel fibers with no decrease of their section happens.…”

Section: Pmax(un-(r+s)c)90 and T(un-(r+s)c)90 Were About 14% Highermentioning

confidence: 99%

Effect of Steel Fiber and Different Environments on Flexural Behavior of Reinforced Concrete Beams

et al. 2017

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Abstract:The main kind of deterioration in marine Reinforced Concrete (RC) structures and other infrastructures is steel bar corrosion due to cracks in concrete surfaces, which leads to the reduction of the load carrying capacity, ductility, and structural safety. It seems that steel fibers can reduce and delay the cracking, and increase the flexural strength and ductility of marine RC structures. To do so, in marine atmosphere and the tidal zone of the Oman Sea and fresh water, the flexural behavior of beams containing Plain Concrete (PC), Concrete with Steel fiber Reinforcement (SFRC), RC, Concrete with Steel fiber, and bar Reinforcement ((R+S)C) at 28, 90 and 180 days were determined. Beams were 99 un-cracked and pre-cracked beams, with dimensions of 200 × 200 × 750 mm. Based on results and at 180 days, the flexural strength and toughness of pre-cracked (R+S)C beams were 22-43% higher than the pre-cracked RC beams. The effect of steel fiber on the increment of load capacity and the toughness of pre-cracked RC beams were approximately the same. By addition of steel fiber to un-cracked RC beams, load capacity and toughness were increased up to 20%. The load capacity and toughness in marine atmosphere and tidal zone were approximately 15% lower than the fresh water condition.

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Durability of steel fiber reinforced self-compacting concrete

Cited by 163 publications

References 15 publications

High temperature effect on the mechanical behavior of steel fiber reinforced self‐compacting concrete containing ground pumice powder

High temperature effect on the mechanical behavior of steel fiber reinforced self‐compacting concrete containing ground pumice powder

08.39: Experimental investigations on performance enhancement of composite steel concrete shear walls by using steel fibre reinforced concrete

Effect of Steel Fiber and Different Environments on Flexural Behavior of Reinforced Concrete Beams

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