Recent development of innovative steel fibers for ultra-high-performance concrete (UHPC): A critical review

Yoo, Doo-Yeol; Banthia, Nemkumar; Yoon, Young-Soo

doi:10.1016/j.cemconcomp.2023.105359

Cited by 34 publications

(3 citation statements)

References 108 publications

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“…In the structural design of ordinary reinforced concrete, it is generally considered that concrete only bears pressure, but not tension. However, the structural integrity of UHPC is maintained due to the bridging effect of the steel fibers after cracking [ 19 , 22 ]. It is generally believed that there is a certain relationship between the flexural and direct tensile strength.…”

Section: Resultsmentioning

confidence: 99%

“…However, due to the complexity of the fiber geometry and the uncertainty of the fiber distribution direction, the tensile properties of UHPC materials vary greatly [ 14 , 15 , 16 , 17 , 18 ]. At the same time, the physical properties of the steel fibers and the bonding strength between the fibers and the UHPC matrix also affect the mechanical properties of the UHPC [ 17 , 19 , 20 ]. This is also a core factor to be considered in structural design.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Steel Fibers on Tensile Properties of Ultra-High-Performance Concrete: A Review

Du,

Yu,

Qiu

et al. 2024

Materials

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Ultra-high-performance concrete (UHPC) is an advanced cement-based material with excellent mechanical properties and durability. However, with the improvement of UHPC’s compressive properties, its insufficient tensile properties have gradually attracted attention. This paper reviews the tensile properties of steel fibers in UHPC. The purpose is to summarize the existing research and to provide guidance for future research. The relevant papers were retrieved through three commonly used experimental methods for UHPC tensile properties (the direct tensile test, flexural test, and splitting test), and classified according to the content, length, type, and combination of the steel fibers. The results show that the direct tensile test can better reflect the true tensile strength of UHPC materials. The tensile properties of UHPC are not only related to the content, shape, length, and hybrids of the steel fibers, but also to the composition of the UHPC matrix, the orientation of the fibers, and the geometric dimensions of the specimen. The improvement of the tensile properties of the steel fiber combinations depends on the effectiveness of the synergy between the fibers. Additionally, digital image correlation (DIC) technology is mainly used for crack propagation in UHPC. The analysis of the post-crack phase of UHPC is facilitated. Theoretical models and empirical formulas for tensile properties can further deepen the understanding of UHPC tensile properties and provide suggestions for future research.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Steel Fibers on Tensile Properties of Ultra-High-Performance Concrete: A Review

Du,

Yu,

Qiu

et al. 2024

Materials

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“…Mineral admixtures are one of the treatments that possibly fix RCA's harmful and negative impact on mechanical performance. There are three types of representative mineral admixtures which are fly ash (FA), ground-granulated blast-furnace slag (GGBS), and silica fume (SF) [11]. Concrete performance is most affected by the highest water absorption (WA) of FRCA.…”

Section: Fine Recycled Concrete Aggregatementioning

confidence: 99%

Advancements in Concrete Performance by Using Waste materials in the Mixture

Hamza,

Parmar

et al. 2024

E3S Web of Conf.

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There have been serious research advancements in concrete materials to make construction more sustainable. Specifically, this is true with regard to alternative ingredients used for self-compacting concrete (SCC) production. To improve its sustainability, this study is aimed at adding Fine Recycled Concrete Aggregate (FRCA) and Recycled Concrete Aggregate (RCA) into SCC. Crushed and reclaimed asphalt (RCA), on the other hand, has many benefits including lower environmental impact and cost-effectiveness. Nevertheless, there are several issues associated with contractors’ knowledge among others being variations in their properties. It’s also known that FRCA can imbibe water faster; hence, mineral admixtures may be introduced to further enhance mechanical behaviour of the concrete. Fly ash and geopolymer synthesis are examples of waste products from industry as well as by-products of coal combustion which are useful in making green concretes. The best results would be achieved if fly ash, a popular Supplementary Cementitious Material (SCM) that reduces Ordinary Portland Cement’s (OPC’s) need is divided according to its oxide content. In order for geopolymers to become an alternative for cement making materials such as aluminosilicate source or alkali reactants are applied. Engineered Cementitious Composite (ECC) enhances performance of concrete even more with strain-hardening properties, especially in terms of durability and tensile capacity. On the whole, manufacturing concrete from recycled and industrial waste products is cost effective and environmentally beneficial. These materials can be maximized if prope performance-driven design strategies and contemporary waste management systems are put into place. This paper emphasizes how essential and crucial it is to incorporate sustainable methods in the production of concrete to create a more environment friendly construction industry.

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Experimental study and prediction of uniaxial compression behavior of the novel UHPC reinforced with BFRP minibars

Chen,

Wang,

Ding

et al. 2024

Arch. Civ. Mech. Eng.

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Recent development of innovative steel fibers for ultra-high-performance concrete (UHPC): A critical review

Cited by 34 publications

References 108 publications

Effect of Steel Fibers on Tensile Properties of Ultra-High-Performance Concrete: A Review

Effect of Steel Fibers on Tensile Properties of Ultra-High-Performance Concrete: A Review

Advancements in Concrete Performance by Using Waste materials in the Mixture

Experimental study and prediction of uniaxial compression behavior of the novel UHPC reinforced with BFRP minibars

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