Exploring mechanical and durability properties of ultra-high performance concrete incorporating various steel fiber lengths and dosages

Abbas, Safeer; Soliman, Ahmed M.; Nehdi, Moncef L.

doi:10.1016/j.conbuildmat.2014.11.017

Cited by 350 publications

(134 citation statements)

References 19 publications

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“…This increase in UHPC compressive strength was attributed to the enhanced tolerance of lateral strains owing to steel fiber addition (Kazemi and Lubell 2012;Hassan et al 2012;Orgass and Klug 2004;Magureanu et al 2012;Ye et al 2012). Furthermore, it was reported that the addition of fibers resulted in less entrapped air, leading to improved density and hence higher compressive strength (Abbas et al 2015).…”

Section: Effect Of Steel Fibersmentioning

confidence: 99%

Ultra-High Performance Concrete: Mechanical Performance, Durability, Sustainability and Implementation Challenges

Abbas

Nehdi

Saleem

2016

Int J Concr Struct Mater

336

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In this study, an extensive literature review has been conducted on the material characterization of UHPC and its potential for large-scale field applicability. The successful production of ultra-high performance concrete (UHPC) depends on its material ingredients and mixture proportioning, which leads to denser and relatively more homogenous particle packing. A database was compiled from various research and field studies around the world on the mechanical and durability performance of UHPC. It is shown that UHPC provides a viable and long-term solution for improved sustainable construction owing to its ultrahigh strength properties, improved fatigue behavior and very low porosity, leading to excellent resistance against aggressive environments. The literature review revealed that the curing regimes and fiber dosage are the main factors that control the mechanical and durability properties of UHPC. Currently, the applications of UHPC in construction are very limited due to its higher initial cost, lack of contractor experience and the absence of widely accepted design provisions. However, sustained research progress in producing UHPC using locally available materials under normal curing conditions should reduce its material cost. Current challenges regarding the implementation of UHPC in full-scale structures are highlighted. This study strives to assist engineers, consultants, contractors and other construction industry stakeholders to better understand the unique characteristics and capabilities of UHPC, which should demystify this resilient and sustainable construction material.

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Section: Effect Of Steel Fibersmentioning

confidence: 99%

Ultra-High Performance Concrete: Mechanical Performance, Durability, Sustainability and Implementation Challenges

Abbas

Nehdi

Saleem

2016

Int J Concr Struct Mater

336

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“…The f r of specimens, which were cured in salt solution, was increased 8-15%. Abbas et al [9] found that after chloride ions exposure, steel fibers on the surface of SFRC specimens are corroded up to a specified depth (3 mm), and there is no evidence of corroded fibers at a higher depth. They investigated that fiber length has not important effect on the durability properties of specimens, but a higher volume of fiber improves the durability properties.…”

Section: Durability Of Sfrcmentioning

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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“…Another advantage of UHPC reinforced with glass fibres are its aesthetic properties (thinner and lighter structures), which is important e.g. for architectural elements [2][3][4][5][6][7][8][9][10][11]. Rigaud in his study [10] showed that the ideal content of glass fibres is ca.…”

Section: Ceramics -Silikáty 61 (4) 319-326 (2017)mentioning

confidence: 99%

“…However, in practice the compression strength may be up to 250 MPa [3] and under laboratory conditions it can be over 400 MPa. The minimum tensile strength is 7 MPa [4], however, its usual value is over 15 MPa [2]. Key factors that ensure exceptional mechanical properties of UHPC include, particularly, extreme compactness, efficient filling of space with individual particles of the aggregate and high homogeneity.…”

Section: Introductionmentioning

confidence: 99%

Corrosion of Glass Fibres in Ultra High Performance Concrete and Normal Strength Concrete

Holubová¹

2017

Ceramics - Silikaty

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Exploring mechanical and durability properties of ultra-high performance concrete incorporating various steel fiber lengths and dosages

Cited by 350 publications

References 19 publications

Ultra-High Performance Concrete: Mechanical Performance, Durability, Sustainability and Implementation Challenges

Ultra-High Performance Concrete: Mechanical Performance, Durability, Sustainability and Implementation Challenges

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

Corrosion of Glass Fibres in Ultra High Performance Concrete and Normal Strength Concrete

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