Compressive behavior of reinforced steel-PVA hybrid fiber concrete short columns after high temperature exposure

Xiao, Liangli; Chen, Panhong; Huang, Jinsong; Peng, Shuang; Yang, Zhao

doi:10.1016/j.conbuildmat.2022.127935

Cited by 14 publications

(3 citation statements)

References 33 publications

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“…When contrasted with previous studies, Sun [35] and Xiao [36] similarly concluded that blending steel and PVA fibers surpassed solitary mixing in enhancing the axial compression mechanics of concrete. In sum, the steel-PVA hybrid proves more effective in enhancing panel concrete ductility than standalone steel fibers.…”

Section: Stress-strain Relationship Of Sfrccontrasting

confidence: 69%

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Experimental Research on Crack Resistance of Steel–Polyvinyl Alcohol Hybrid Fiber-Reinforced Concrete

Wu,

Zhang,

Han

et al. 2024

Materials

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This paper investigates the effects of steel fiber and PVA fiber hybrid blending on the compressive strength (fcc), splitting tensile strength (fts), compression energy (W1.0), and shrinkage properties of concrete. It also establishes a multi-factor crack resistance index evaluation model based on the Analytic Hierarchy Process (AHP) to comprehensively evaluate the crack resistance of concrete. The results show that the steel–PVA hybrid fiber (S-PVA HF) further enhances fcc, fts, the compression energy, and the shrinkage suppression properties of the concrete. The crack resistance of the steel–PVA hybrid fiber concrete (S-PVA HFRC) is the best when the proportion of steel fiber is 1.0% and that of the PVA fiber is 0.2%, and it increases up to 143% compared to the baseline concrete. The established concrete crack resistance evaluation model has a certain reliability.

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Section: Stress-strain Relationship Of Sfrccontrasting

confidence: 69%

“…At present, most research on S-PVA HFRC is focused on 𝑓 cc , 𝑓 ts , and 𝑓 c [35,36], with less study in the aspect of concrete crack resistance.…”

Section: Introductionmentioning

confidence: 99%

Experimental Research on Crack Resistance of Steel–Polyvinyl Alcohol Hybrid Fiber-Reinforced Concrete

Wu,

Zhang,

Han

et al. 2024

Materials

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“…Compared to a compressive strength test, which is usually applied to evaluate the mechanical properties of concrete after high-temperature treatments, the stress-strain behavior could reflect its bearing capacity and deformation more comprehensively. Researchers have discussed the thermal stress-strain behavior of normal concrete [25][26][27], fiber-reinforced concrete [28,29], recycled aggregate concrete [30][31][32], reactive powder concrete [33], lightweight aggregate concrete [34], and high-strength concrete [35]. Yang et al [20] innovatively studied the thermal stress-strain behavior of AAS ultra-high strength concrete.…”

Section: Introductionmentioning

confidence: 99%

Thermal-Related Stress–Strain Behavior of Alkali Activated Slag Concretes under Compression

Zhang

Chen

et al. 2023

Materials

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In this paper, the thermal-related stress–strain behavior of alkali-activated slag (AAS) concretes, with different alkali concentrations and moduli, was studied under compression. After exposure to high temperatures (200 °C, 400 °C, 600 °C, 800 °C, and 1000 °C), a compression test was carried out on the specimens. The stress–strain relationship, axial compressive strength, and elastic modulus were expressed using both a displacement extensometer and the digital image correlation (DIC) technique. It was mainly determined that: (1) With the increase in temperature, the stress–strain curves of the AAS concretes tended to be flattened, indicating reductions in both axial compressive strength and elastic modulus. After 1000 °C, only 2.5–3.7% axial compressive strength and 1.4–3.9% elastic modulus remained, respectively. (2) The DIC technique was used for thermal strain measurements of the AAS concrete. Compared to the traditional extensometer, DIC yielded a small error of 4.5% and 7.2% for axial compressive strength and elastic modulus measurements, respectively. The strain cloud chart obtained from DIC was helpful for monitoring the damage process of the specimens. The findings of this paper refined scientific systems of AAS concrete under thermal action, and also provided a newly non-contact approach for thermal strain measurements of AAS concrete under compression.

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Axial compressive behaviour and physical characteristics of high strength self-compacting geopolymer concrete (HSGC) columns exposed to elevated temperature

Kanagaraj

Anand

Jerry

et al. 2023

Construction and Building Materials

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Compressive behavior of reinforced steel-PVA hybrid fiber concrete short columns after high temperature exposure

Cited by 14 publications

References 33 publications

Experimental Research on Crack Resistance of Steel–Polyvinyl Alcohol Hybrid Fiber-Reinforced Concrete

Experimental Research on Crack Resistance of Steel–Polyvinyl Alcohol Hybrid Fiber-Reinforced Concrete

Thermal-Related Stress–Strain Behavior of Alkali Activated Slag Concretes under Compression

Axial compressive behaviour and physical characteristics of high strength self-compacting geopolymer concrete (HSGC) columns exposed to elevated temperature

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