Evaluating steel fiber‐reinforced self‐consolidating concrete performance

Silva, Gisele C. S. da; Christ, Roberto; Pacheco, Fernanda; Souza, Camila Fernandes Natus de; Gil, Augusto Masiero; Tutikian, Bernardo Fonseca

doi:10.1002/suco.201900141

Cited by 14 publications

(10 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The presence of steel fibers in the SCC causes the matrix to become disrupted, resulting in more voids that can lead to a reduction in compressive strength. A study indicated that samples containing fibers displayed a decrease in this characteristic for all types and amounts of fiber when compared to a reference mixture of SCC without steel fibers [42]. The concentration of fibers at any sections of the specimen should be avoided not to reduce the system ability to sustain loading capacity.…”

Section: Compressive Strengthmentioning

confidence: 99%

A Brief Review of Steel Fiber Self-Compacting Concrete in Ribbed Slab

Hasan

Hashim

Fozi

2022

AEJ

View full text Add to dashboard Cite

The use of Steel Fiber Reinforced Self-Compacting Concrete (SCFRC) as structural elements is seen as favorable alternative to solve typical issues of complex reinforcing spacing and compaction in normal reinforced concrete. The primary benefit of SCFRC is that it can be easily poured in-situ, filling corners of formwork and gaps between bars of reinforcement with its own weight. SCFRC's structural performance is constantly being investigated because of its superior engineering and mechanical properties. Steel fibers added to the mix improved the hardened properties of self-compacting concrete in terms of tensile strength, ductility, toughness, energy absorption capacity, and cracking resistance. This study reviews previous research on SCFRC performance in slab structures with an emphasis on flexural performance. Thus, the knowledge could provide guidelines for academia and industry players on the structural and materials behavior of the slab elements.

show abstract

Section: Compressive Strengthmentioning

confidence: 99%

A Brief Review of Steel Fiber Self-Compacting Concrete in Ribbed Slab

Hasan

Hashim

Fozi

2022

AEJ

View full text Add to dashboard Cite

show abstract

“…Kang et al [2] evaluated the influence of pouring direction and fiber distribution characteristics on the bending strength of composite materials. Silva et al [3] demonstrated through experimentation that steel fibers have a significant toughening effect on cement-based materials, and that both flexural strength and toughness increase with increasing fiber length.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Bending Toughness of Steel Fiber Reinforced Cement Based Materials

Yun-guo¹,

Li²,

Zhu³

et al. 2023

HSET

View full text Add to dashboard Cite

Steel fibers have a significant toughening effect on cement-based materials. In order to address the issue of relying solely on experimental evaluation of their bending toughness, a numerical analysis method based on the steel fiber bridging theory has been proposed. By establishing a crack extension criterion for fiber-reinforced cement-based composite materials based on the balance between the stress intensity factor generated by external loads, steel fibers, and matrix cohesion at the crack tip and the fracture toughness of the composite material, the toughness of the composite material is evaluated. Through steel fiber-matrix pull-out tests, the bonding characteristics of four types of steel fibers, namely shear, milling, short hook, and long hook, with the matrix are analyzed. A program is then developed using Ansys software APDL language for numerical simulation of the bending and cracking process of the notched beam of the steel fiber-reinforced cement-based composite material. The obtained load-deflection curve and bending toughness index are compared with the results of the notched beam bending test, thereby validating the correctness of the numerical analysis method. The results show that the bending toughness of steel fiber-reinforced cement-based composite materials is closely related to the volume fraction of steel fibers and their bonding characteristics. The balance relationship of the stress intensity factor at the crack tip is the key factor determining crack propagation, and the proposed numerical analysis method can effectively assist in the analysis of the bending toughness of steel fiber-reinforced cement-based composite materials.

show abstract

“…The utilization of steel fibers in concrete has been highly investigated in the past two decades, and the experimental results have proved its capacity for structural concrete applications. da Silva et al [ 4 ] pointed out that the use of steel fibers enhances the flexural toughness and flexural strength of SCC. Other studies on the addition of steel fibers into concrete confirmed that the splitting tensile strength and modulus of rupture are enhanced as well [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of Polypropylene and Steel Fibers on the Performance and Crack Repair of Self-Compacting Concrete

et al. 2021

View full text Add to dashboard Cite

The research reported in this paper aims to evaluate the epoxy injection technique used to strengthen fiber-reinforced self-compacting concrete (FRSCC) with high strength. This method is carried out on ruptured concrete specimens to assess the efficiency of the epoxy resin adhesive injection retrofitting technique for strength and stiffness. Five FRSCC mixes were designed and placed using different types (steel and polypropylene) and contents (0%, 0.25%, and 0.45% by volume) of fibers. The fresh and mechanical properties in addition to the microstructure of produced mixes were evaluated to assess the impact of fibers on the behavior of FRSCC. Results showed that the workability of FRSCC is reduced by increasing steel or polypropylene fiber content; however, the rheological characteristics of placed mixes satisfied the European Guidelines for Self-Compacting Concrete recommendation for fresh concrete. Also, splitting tensile, flexural, and shear strengths were enhanced by increasing fiber content. The simultaneous application of epoxy injection in FRSCC for repairing damaged concrete beams was shown to be highly effective.

show abstract

Evaluating steel fiber‐reinforced self‐consolidating concrete performance

Cited by 14 publications

References 22 publications

A Brief Review of Steel Fiber Self-Compacting Concrete in Ribbed Slab

A Brief Review of Steel Fiber Self-Compacting Concrete in Ribbed Slab

Numerical Analysis of Bending Toughness of Steel Fiber Reinforced Cement Based Materials

Influence of Polypropylene and Steel Fibers on the Performance and Crack Repair of Self-Compacting Concrete

Contact Info

Product

Resources

About