Mechanical properties of ultra-high-performance fiber-reinforced concrete: A review

Yoo, Doo-Yeol; Banthia, Nemkumar

doi:10.1016/j.cemconcomp.2016.08.001

Cited by 604 publications

(161 citation statements)

References 56 publications

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“…Eventually, the macro-cracks lead to the failure of the structural members (1)(2)(3). The various fibers with different dimensions and properties are generally added into cement-based composites to restrict the growth of cracks at different stages in the failure process; and improve its strength, toughness and ductility (1,(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15). But the high cost of fibers limited the large-scale construction project for the applications of fiber reinforced cement-based composites.…”

Section: Introductionmentioning

confidence: 99%

“…But the high cost of fibers limited the large-scale construction project for the applications of fiber reinforced cement-based composites. The amount of cement and expensive fibers are reduced in cement based composites to lower its product cost (10,12). Hence, decreasing the amount of expensive fibers without sacrificing the mechanical performance of fiber reinforced cement-based composites will become beneficial.…”

Section: Introductionmentioning

confidence: 99%

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Effect of hybrid fibers, calcium carbonate whisker and coarse sand on mechanical properties of cement-based composites

Cao

Khan

2018

Mater. construcc.

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Nowadays researchers are developing a new hybrid fiber reinforced cement-based composites (HyFRCC). The new HyFRCC can restrain micro-cracking, improves compressive and flexural performance of beams by addition of calcium carbonate (CaCO 3 ) whisker, polyvinyl alcohol (PVA) fiber and steel fiber. In this work, a mix optimization procedure is shown for multi-scale HyFRCC, with steel, PVA fiber and CaCO 3 whisker. The new HyFRCC is explored with addition of coarse sand to further improve its mechanical properties. Additionally, the flexural performance of beam and slabs has been investigated to optimize sand gradation and fiber combination in new HyFRCC. The compressive strength, flexural strength, flexural behavior, flexural toughness, equivalent flexural strength and deflection-hardening behavior of beams and slabs are improved with optimized content of sand gradation, fibers and CaCO 3 whisker. The HyFRCC slab with 1.5% steel fiber, 0.4% PVA fiber, 1% CaCO 3 whisker and optimized coarse sand showed overall best properties. Citation/Citar como: Cao, M.; Li, L.; Khan, M. (2018) Effect of hybrid fibers, calcium carbonate whisker and coarse sand on mechanical properties of cement-based composites. Mater. Construcc. 68 [330], e156 https://doi.org/10.3989/ mc.2018.01717 RESUMEN:Effecto de fibras híbridas, filamentos de carbonato cálcico y arena gruesa en las propiedades mecánicas de cementos compuestos. En la actualidad se están desarrollando nuevos cementos compuestos reforzados con fibras híbridas (HyFRCC, por sus siglas en inglés). Estos nuevos cementos HyFRCC pueden impedir la microfisuración y aumentar la resistencia a compresión y flexotracción de las vigas, mediante la incorporación de filamentos de carbonato cálcico (CaCO 3 ), fibras de alcohol polivinílico (PVA) y fibras de acero. En este trabajo se plantea un procedimiento para optimizar la proporción de fibras (de acero y de PVA) y filamentos (de CaCO 3 ) en un nuevo HyFRCC. Se investiga la influencia de la arena gruesa en sus propiedades mecánicas, además de la resistencia a flexotracción de vigas y forjados a fin de adecuar la granulometría de la arena y la combinación de fibras en el nuevo material. Un buen ajuste entre el contenido y la granulometría de la arena y la proporción de las fibras y de los filamentos de CaCO 3 permite: incrementar la resistencia tanto a compresión como a flexotracción, la tenacidad a flexotracción y la resistencia a flexotracción equivalente; perfeccionar el comportamiento a flexión; y reducir la flecha de vigas y forjados endurecidos. La mezcla que mejores resultados arroja en conjunto contiene 1,5 % de fibras de acero, 0,4 % de fibras de PVA, 1 % de filamentos de CaCO 3 y arena gruesa optimizada. PALABRAS CLAVE: Composite; Microfisuras; Carbonato cálcico; Resistencias a compresión; Resistencias a flexión ORCID ID: M. Cao

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of hybrid fibers, calcium carbonate whisker and coarse sand on mechanical properties of cement-based composites

Cao

Khan

2018

Mater. construcc.

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“…Ultra-High-Performance Fiber-Reinforced Concrete (UHPFRC) is a type of FRC with compressive strength between 140-200 MPa and tensile strength between 7-15 MPa [2]. This type of concrete has very low maximum particle size (1-2 mm) and well graded aggregates, high content of fibers, usually steel fibers, and it displays high ductility, producing very thin cracks under load (<60 µm).…”

Section: Introductionmentioning

confidence: 99%

Influence of Cracking on Oxygen Transport in UHPFRC Using Stainless Steel Sensors

et al. 2019

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Reinforced concrete elements frequently suffer small cracks that are not relevant from the mechanical point of view, but they can be an entrance point for aggressive agents, such as oxygen, which could initiate the degradation processes. Fiber-Reinforced Concrete and especially Ultra High Performance Concrete increase the multi-cracking behavior, reducing the crack width and spacing. In this work, the oxygen availability of three types of concrete was compared at similar strain levels to evaluate the benefit of multi-cracking in the transport of oxygen. The types of concrete studied include traditional, High-Performance, and Ultra-High-Performance Fiber-Reinforced Concrete with and without nanofibers. To this purpose, reinforced concrete beams sized 150 × 100 × 750 mm 3 were prepared with embedded stainless steel sensors that were located at three heights, which have also been validated through this work. These beams were pre-cracked in bending up to fixed strain levels.The results indicate that the sensors used were able to detect oxygen availability due to the presence of cracks and the detected differences between the studied concretes. Ultra High Performance Concrete in the cracked state displayed lower oxygen availability than the uncracked High Performance Concrete, demonstrating its potential higher durability, even when working in cracked state, thanks to the increased multi-cracking response. Author Contributions: Conceptualization, P.S. and M.V.; methodology, P.S., A.M.-I.; formal analysis, A.M.-I. and M.R.-F.; investigation, A.M.-I., E.J.M.-A. and J.L.-F.; resources, P.S. and M.V.; writing-review and editing, M.R.-F. and A.M.-I.; supervision, P.S. and M.V.; project administration, M.R.-F.; funding acquisition, A.M.-I., M.V., P.S. and M.R.-F. All authors have read and agreed to the published version of the manuscript.

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“…Ultrahigh-performance concrete (UHPC) is a new type of concrete that is being developed by agencies concerned with infrastructure protection [10][11][12][13][14]. UHPC is characterized by being a steel fiber-reinforced cement composite material with compressive strengths in excess of 150 MPa, up to and possibly exceeding 250 MPa.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Fiber-Reinforced Concrete Using Composite Binders

Fediuk

Smoliakov

Muraviov

2017

Advances in Materials Science and Engineering

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This paper investigates the creation of high-density impermeable concrete. The effect of the "cement, fly ash, and limestone" composite binders obtained by joint grinding with superplasticizer in the varioplanetary mill on the process of structure formation was studied. Compaction of structure on micro-and nanoscale levels was characterized by different techniques: X-ray diffraction, DTA-TGA, and electron microscopy. Results showed that the grinding of active mineral supplements allows crystallization centers to be created by ash particles as a result of the binding of Ca(OH) 2 during hardening alite, which intensifies the clinker minerals hydration process; the presence of fine grains limestone also leads to the hydrocarboaluminates calcium formation. The relation between cement stone neoplasms composition as well as fibrous concrete porosity and permeability of composite at nanoscale level for use of composite binders with polydispersed mineral supplements was revealed. The results are of potential importance in developing the wide range of fine-grained fiber-reinforced concrete with a compressive strength more than 100 MPa, with low permeability under actual operating conditions.

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Mechanical properties of ultra-high-performance fiber-reinforced concrete: A review

Cited by 604 publications

References 56 publications

Effect of hybrid fibers, calcium carbonate whisker and coarse sand on mechanical properties of cement-based composites

Effect of hybrid fibers, calcium carbonate whisker and coarse sand on mechanical properties of cement-based composites

Influence of Cracking on Oxygen Transport in UHPFRC Using Stainless Steel Sensors

Mechanical Properties of Fiber-Reinforced Concrete Using Composite Binders

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