Fatigue life analysis of polypropylene fiber reinforced concrete under axial constant-amplitude cyclic compression

Cui, Kai; Xu, Lihua; Li, Xuefeng; Hu, Xuan; Huang, Le; Deng, Fangqian; Chi, Yin

doi:10.1016/j.jclepro.2021.128610

Cited by 41 publications

(13 citation statements)

References 44 publications

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“…This was due to the bridging effect of PF at the cracks, which improved the crack resistance and deformation capacity of the concrete matrix. As a micro‐scale fiber, PF is mainly used to inhibit the development of micro‐cracks into macro‐cracks 21 . It has a certain forward‐looking in the process of inhibiting the development of cracks, and its elastic modulus is small.…”

Section: Resultsmentioning

confidence: 99%

“…As a micro-scale fiber, PF is mainly used to inhibit the development of micro-cracks into macro-cracks. 21 It has a certain forward-looking in the process of inhibiting the development of cracks, and its elastic modulus is small. It is easy to be broken when subjected to large loads.…”

Section: Failure Patternmentioning

confidence: 99%

“…During the building's life cycle, the concrete structure will experience not only static loads and high‐stress states but also repeated cyclic loads, including wind, vehicle, and seismic loads. The redistribution of stress in the microstructure of the concrete matrix under cyclic loading will result in the gradual deterioration of material properties 21,31 . Consequently, the structure may fail before reaching its expected service life, posing significant safety risks.…”

Section: Introductionmentioning

confidence: 99%

“…20 Compared with other fibers, PF has the advantages of good durability, more economical, corrosion resistance, high stability, and hydrophobicity, which can extend the service life of the concrete. 21 With the development of research in the field of concrete, PFs have gradually started to be used in concrete structures. [22][23][24] In addition, the low cost and environmental protection effects of PFs have triggered more attention.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Mechanical properties of short polypropylene fiber enhanced recycled concrete under cyclic compression

Zhu

Chen

et al. 2023

Structural Concrete

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This study investigated the mechanical properties and stress–strain relationship of polypropylene fiber recycled aggregate concrete (PFRAC) subjected to uniaxial cyclic compression. A total of 78 cylindrical specimens were designed for uniaxial cyclic compression test with coarse aggregate replacement rate, polypropylene fiber volume fraction, and loading rate as variation parameters. The failure process of the specimens under cyclic loading was observed and recorded. The stress–strain curve of PFRAC was summarized. The important mechanical properties of PFRAC were obtained, such as plastic strain, accumulated energy dissipation. The microstructure of PFRAC was analyzed by scanning electron microscopy, and the crack resistance mechanism of PFRAC under cyclic loading was revealed. The results show that the PFRAC under cyclic loading appeared oblique splitting failure. The compressive stress–strain curve envelope of PFRAC subjected to cyclic loading exhibited similarity to the monotonic counterpart. The addition of polypropylene fibers can improve the peak stress, peak strain, residual stress, post‐peak ductility, and accumulated energy dissipation of the recycled concrete. In addition, a constitutive relation formula for the PFRAC stress–strain curve under cyclic loading is proposed, and the fitting result is good.

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Section: Resultsmentioning

confidence: 99%

Section: Failure Patternmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mechanical properties of short polypropylene fiber enhanced recycled concrete under cyclic compression

Zhu

Chen

et al. 2023

Structural Concrete

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“…Different types of fibers, such as steel, carbon, alcohol polyvinyl, glass, and metal fibers, are suggested as additive materials to increase the ductility of concrete and reduce cracking, for example, polypropylene and acrylic [1]. Due to its low cost, fresh and hardened concrete properties like compression, tension, and workability were developed by adding polyolefin and polypropylene as well as plastic fibers [2][3][4]. The shape, such as embossed, straight, and crimped, and the material of the fibers, like waste polyethylene and steel, were conducted to have a crucial effect on the concrete characteristics [5,6].…”

Section: Introductionmentioning

confidence: 99%

Destructive and Nondestructive Tests for Concrete Containing a Various Types of Fibers

Mahdi

Saleh²,

Faleh³

2022

Civ Eng J

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Fibers have been considered an effective material that was used to improve the concrete's weak properties, namely its tensile strength, ductility, and crack resistance. Thus, the current study highlights two major objective, the former is the fibers shapes and types on the mechanical properties of the fresh and hardened concrete while the latter explores the impact of the fiber contents on the concrete mechanical properties developments. To achieve these targets six types of fibers (five of them made of steel and the last was polyolefin fibers) with various shapes are utilized. The tests were carried out to investigate the fibers shape and material contribution in the concrete mix properties improvement. The samples were subjected to destructive and non-destructive tests such as workability, compression, bending, and splitting. The non-destructive tests include ultrasonic pulse velocities and the Schmidt Hammer test. Three kinds of fibers (two of steel and one of polyolefin fiber) are used with variable content ratios of 0.5, 0.75, 1.0, and 1.5% to study the fiber content effect. Generally, the workability of fresh concrete has a reverse relationship with fiber presence and fiber content ratios. The compressive capacity, splitting and flexural strength has a direct proportion with fibers contents. The hooked steel fibers appeared the best results in terms of shape comparison. Doi: 10.28991/CEJ-2022-08-11-07 Full Text: PDF

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Mechanical and Microstructural Properties of Polypropylene Fiber-Reinforced Concretes Exposed to Low-Temperature Curing

Yang,

Tan,

et al. 2024

Arab J Sci Eng

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Fatigue life analysis of polypropylene fiber reinforced concrete under axial constant-amplitude cyclic compression

Cited by 41 publications

References 44 publications

Mechanical properties of short polypropylene fiber enhanced recycled concrete under cyclic compression

Mechanical properties of short polypropylene fiber enhanced recycled concrete under cyclic compression

Destructive and Nondestructive Tests for Concrete Containing a Various Types of Fibers

Mechanical and Microstructural Properties of Polypropylene Fiber-Reinforced Concretes Exposed to Low-Temperature Curing

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