The Impact of Fiber Reinforcement on the Strength Characteristics of Concrete Used For the Construction of Hydraulic Structures

Mahova, Natal'va Borisovna; Viktorovich, Tatarinov Viktor; Serov, S A; Konstantinovich, Novikov Vasiliy; Dutov, Alexey S.; Rozhok, Anastasiia

doi:10.1109/reepe53907.2022.9731396

Cited by 1 publication

(1 citation statement)

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“…This knowledge gap indicates a lack of comprehension about the behavior of these fibers when encountering forces that lead to their extraction from the concrete, particularly in UHPC with elevated shrinkage. Viktorovich et al [33] suggest that addressing the practical challenges linked to fiber-reinforced concrete's application requires the development of a method to compute its crack resistance across diverse load conditions and design attributes. This approach would empower engineers to evaluate the crack resistance of fiber-reinforced concrete, ensuring its structural durability and integrity in a range of construction contexts.…”

Section: Introductionmentioning

confidence: 99%

Physicomechanical Behavior of High-Performance Concrete Reinforced with Recycled Steel Fibers from Twisted Cables in the Brittle State—Experimentation and Statistics

Chetbani,

Zaitri,

Tayeh

et al. 2023

Buildings

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This research studied the effect of recycled steel fibers extracted from twisted cable waste on the fresh and hardened states of high-performance concretes. Accordingly, slump, water absorption (WA), compressive strength (CS), flexural strength (FS), and split tensile strength (STS) were measured in the laboratory using mixtures generated by the response surface methodology (RSM). The RSM-based central composite design (CCD) was used to assess the influence of water-to-binder (W/B) ratios from 0.27 to 0.31, length-to-diameter (L/d = 46 to 80) and steel fiber content (SFC) in the range of 19 to 29 kg/m3 on the behavior of high-performance fiber-reinforced concrete (HPFRC). The accuracy and validation of the generated models were evaluated by employing analysis of variance (ANOVA) and optimal parameters. The experimental findings revealed that the use of an L/d ratio of 63, a W/B ratio of approximately 0.28, and an SFC of around 22 kg/m3 resulted in high workability in terms of slump. While a notable increase in compressive strength was observed when employing an L/d ratio of approximately 70, a W/B ratio of around 0.28, and the maximum SFC of 29 kg/m3, as confirmed by scanning electron microscopy (SEM) and X-ray diffraction (XRD) analysis.

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Section: Introductionmentioning

confidence: 99%