RETRACTED: Drying shrinkage and creep properties of prepacked aggregate concrete reinforced with waste polypropylene fibers

Alrshoudi, Fahed; Mohammadhosseini, Hossein; Tahir, Mahmood Md.; Alyousef, Rayed; Alghamdi, Hussam; Alharbi, Yousef R.; Alsaif, Abdulaziz

doi:10.1016/j.jobe.2020.101522

Cited by 52 publications

(27 citation statements)

References 48 publications

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“…Especially for the sample with 0.9 kg/m 3 of PP fiber, the rates of dry shrinkage at 7 d, 14 d, 21 d, and 28 d is decreased by 18.1%, 16.9%, 17.0%, and 18.3%, respectively. is indicates that PP fiber has a similar effectiveness in CGA mortar and other mortars [11][12][13][14].…”

Section: Cracking and Dry Shrinkagementioning

confidence: 76%

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Effect of Polypropylene Fiber on the Strength and Dry Cracking of Mortar with Coal Gangue Aggregate

Zhu

Li-yang

et al. 2021

Advances in Materials Science and Engineering

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Fine coal gangue aggregate (CGA) has a high water absorption, which increases the cracking risk of mortar caused by dry shrinkage. The effects of polypropylene (PP) fiber on the fluidity, strength, dry shrinkage, and cracking of CGA mortar were studied in this paper. The results show that PP fiber reduces the fluidity of CGA mortar, but PP fiber improves compressive and flexural strengths, especially at the early stages. PP fiber also effectively decreases dry shrinkage and the risk of cracking. Overall, PP fiber can effectively improve the properties of CGA mortar.

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Section: Cracking and Dry Shrinkagementioning

confidence: 76%

“…PP fiber is a kind of common fiber due to its low price and excellent performance. PP fiber can obviously reduce dry shrinkage [11][12][13], and higher PP fiber content will enhance the effectiveness [14]. e physical properties of PP fiber, such as elasticity module [15] and length [16], also have some effects.…”

Section: Introductionmentioning

confidence: 99%

Effect of Polypropylene Fiber on the Strength and Dry Cracking of Mortar with Coal Gangue Aggregate

Zhu

Li-yang

et al. 2021

Advances in Materials Science and Engineering

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“…It indicates that the OPC specimens washed out at a higher rate when immersed in an acid solution. This higher rate of leaching in the OPC specimens might be due to the existence of CaO at a higher volume in the OPC than POFA, which quickly washed out when coming into contact with acid [39,40]. However, by reinforcing OPC specimens with WMP fibres, the rate of mass loss decreased significantly.…”

Section: Mass Lossmentioning

confidence: 96%

Enhanced Performance of Concrete Composites Comprising Waste Metalised Polypropylene Fibres Exposed to Aggressive Environments

et al. 2020

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The utilisation of waste plastic and polymeric-based materials remains a significant option for clean production, waste minimisation, preserving the depletion of natural resources and decreasing the emission of greenhouse gases, thereby contributing to a green environment. This study aims to investigate the resistance of concrete composites reinforced with waste metalised plastic (WMP) fibres to sulphate and acid attacks. The main test variables include visual inspection, mass loss, and residual strength, as well as the microstructural analysis of specimens exposed to aggressive environments. Two sets of concrete mixes with 100% ordinary Portland cement (OPC) and those with 20% palm oil fuel ash (POFA) were made and reinforced with WMP fibres at volume fractions of 0–1.25%. The results revealed that the addition of WMP fibres decreased the workability and water-cured compressive strength of concrete mixes. The outcomes of the study suggest that the rate of sulphate and acid attacks, in terms of mass losses, was controlled significantly by adding WMP fibres and POFA. The mutual effect of WMP fibre and POFA was detected in the improvement in the concrete’s resistance to sulphate and acid attacks by the reduction in crack formation, spalling, and strength losses. Microstructural analysis conducted on the test specimens elucidates the potential use of POFA in improving the performance of concrete in aggressive environments.

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“…Meanwhile, the optimum content of PPFs ranges between 0.25% and 0.5% by volume when the shrinkage and workability were simultaneously considered. Alrshoudi et al [35] tried to use the waste PPFs in prepacked aggregate concrete at the content of 0-1.2% by volume. e drying shrinkage of the concrete was decreased compare to the one without PPF.…”

Section: Effect Of Polypropylene Fibre Onmentioning

confidence: 99%

“…e results showed that the long-term tensile behaviour of the concrete was influenced by the load ratio. Alrshoudi et al [35] compared the creep stain of concrete with and without waste PPF in the prepacked aggregate concrete. ey found that the development trend of creep stain for the PPFreinforced concrete was only slightly smaller than the plain concrete.…”

Section: Creepmentioning

confidence: 99%

Review on the Durability of Polypropylene Fibre‐Reinforced Concrete

Liu

Wang

Cao

et al. 2021

Advances in Civil Engineering

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Polypropylene fibre (PPF) is a kind of polymer material with light weight, high strength, and corrosion resistance. The crack resistance of concrete can be improved by adding PPFs. PPF can optimize the pore size distribution of concrete. As a result, the durability of concrete is significantly enhanced since PPF can block the penetration of water or harmful ions in concrete. This paper summarizes the influence of polypropylene fibre on the durability of concrete, including drying shrinkage, creep, water absorption, permeability resistance, chloride ion penetration resistance, sulfate corrosion resistance, freeze-thaw cycle resistance, carbonation resistance, and fire resistance. The authors analysed the effects of fibre content, fibre diameter, and fibre hybrid ratio on these durability indexes. The durability property of concrete can be further improved by combining PPFs and steel fibres. The drawbacks of PPF in application in concrete are the imperfect dispersion in concrete and weak bonding with cement matrix. The methods to overcome these drawbacks are to use fibre modified with nanoactive powder or chemical treatment. At last, the authors give the future research prospects of concrete made with PPFs.

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RETRACTED: Drying shrinkage and creep properties of prepacked aggregate concrete reinforced with waste polypropylene fibers

Cited by 52 publications

References 48 publications

Effect of Polypropylene Fiber on the Strength and Dry Cracking of Mortar with Coal Gangue Aggregate

Effect of Polypropylene Fiber on the Strength and Dry Cracking of Mortar with Coal Gangue Aggregate

Enhanced Performance of Concrete Composites Comprising Waste Metalised Polypropylene Fibres Exposed to Aggressive Environments

Review on the Durability of Polypropylene Fibre‐Reinforced Concrete

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