State of art review on the incorporation of fibres in asphalt pavements

Wu, Songwei; Haji, Ara; Adkins, Ian

doi:10.1080/14680629.2022.2092022

Cited by 23 publications

(7 citation statements)

References 138 publications

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“…This result demonstrated the clear ability of the fibers to improve the fatigue resistance of the CRAM mixtures. Probably, the fibers allowed delaying the evolution of the microcracks into macrocracks by sewing the fracture edges, as was observed in HMA mixtures by many authors [54]. Before reaching the specimen failure, the fibers in needed to be broken by tension or unthreaded from the binder matrix, entailing a significant increase in the necessary number of cycles.…”

Section: Fatigue Resistancementioning

confidence: 93%

Characterization of Cold Recycled Asphalt Mixtures including Reinforcing Fibers

Carpani,

Bocci,

Bocci

2023

Sustainability

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In recent years, cold recycling techniques have been widely used all over the world thanks to their huge environmental advantages. However, their performances are lower than the traditional hot-mix asphalt, both for the longer time to develop the final mechanical properties, which leads to delays in the reopening to road traffic, and for the lower fatigue resistance. The present paper deals with the characterization of cold recycled asphalt mixtures (CRAM), made with 100% reclaimed asphalt pavement, where synthetic fibers were included to improve the fatigue performance. The investigation involved the analysis of the curing time, volumetric properties, stiffness, strength, rheological behavior and resistance to cyclic loading. The results showed that the use of synthetic fiber, with the optimum dosage, determined a higher CRAM performance, especially in terms of fatigue resistance.

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Section: Fatigue Resistancementioning

confidence: 93%

Characterization of Cold Recycled Asphalt Mixtures including Reinforcing Fibers

Carpani,

Bocci,

Bocci

2023

Sustainability

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“…In this context, the incorporation of fiber in asphalt pavements has been widely used and studied, concluding that its addition generates important benefits in the mechanical behavior of asphalt mixtures; however, Wu et al (2023) indicate that the type of fiber and its characteristics determine important properties that are fundamental for the effectiveness of its incorporation into asphalt [36]. Numerous studies have conclusively demonstrated that synthetic fibers can be used effectively to improve the performance of asphalt mixtures.…”

Section: Introductionmentioning

confidence: 99%

Enhancing Fatigue Resistance in Asphalt Mixtures with a Novel Additive Derived from Recycled Polymeric Fibers from End-of-Life Tyres (ELTs)

Valdes-Vidal,

Calabi-Floody,

Mignolet-Garrido

et al. 2024

Polymers

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Waste-tire textile fibers (WTTF) represent a challenge for the recycling industry since there are currently very few alternatives for their use. In this study, an evaluation of the effect of a new additive developed in two granular formats from WTTF on the fatigue behavior of asphalt mixtures was performed. For the first format of the WTTF-based additive, its effect was evaluated on hot-mix asphalt (HMA), while for the second format of the additive, the effects were evaluated on stone mastic asphalt (SMA). This second format represents an alternative that allows for the total replacement of the cellulose stabilizing additive used in the reference mix. The evaluation of fatigue damage in the mixes was performed using the four-point bending beam (4PB) test specified in European standard EN 12697-24. The test results show that the asphalt mixtures manufactured with WTTF-based additives exhibited a higher capacity to resist load cycles before failure compared to the reference mixtures. Likewise, once the asphalt mixtures were evaluated in a pavement structure by means of an empirical mechanistic analysis, the pavement structures composed of asphalt mixtures with WTTF-based additives showed significant improvements in their durability for the different load axes evaluated. For an average thickness of 15 cm of asphalt mix of a pavement-type structure, the use of the WTTF additive increases the durability of the structures by up to 129% and 112% compared to the HMA and SMA reference mixtures, respectively. These results show that both formats of the WTTF-based admixture improve the fatigue damage resistance of the HMA and SMA asphalt mixtures.

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“…Consequent to these deformations, the stability of asphalt is regarded as particularly important. In order to solve the above problems, a lot of experimental research has been carried out at home and abroad [ 8 , 9 ]. To improve surface performance, fiber has been added in many ways to enhance the stability of asphalt mixtures, which can effectively improve the comprehensive performance of asphalt slurry and its mixture, improve the quality of asphalt pavement, prolong its service life, and reduce the amount of maintenance [ 10 , 11 , 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Fiber-Reinforced Asphalt Mixture Design on Anti-Skid Surfacing for Field Testing High-Speed Vehicles on Pavements

Liu

et al. 2023

Materials

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Fiber can absorb asphalt binder and therefore reinforce and stabilize the asphalt mixture structure and also prevent the asphalt from the leaking, which occurs in the process of mixing and transport. In this study, three kinds of fiber (polyester fiber, polypropylene fiber, and lignin fiber) are used to evaluate the relationship between the fiber types and mechanic performance of SMA-13 fiber asphalt mixture, which is specially designed for field tests of high-speed vehicles on pavements. The micro-surface characteristics of fiber and aggregates were studied by SEM and image analysis. Marshall stability and splitting strength were used to measure the properties of the asphalt mixture. In addition, a field test, including measures for curve-section edge, curve-section center, straight-section edge, and straight-section center, was conducted to evaluate the skid resistance of the high-speed vehicles that test field pavement. The results show that the Marshall stabilities of asphalt mixture with three kinds of fibers have been improved, whereas the stability of asphalt mixture prepared by polypropylene fiber and polyester fiber particularly increased before immersion. Among the three kinds of fiber asphalt mixtures, the polyester fiber asphalt mixture has enhanced water susceptibility. Skid resistance in the field test indicated that high skid resistance and good surface-texture depth were achieved.

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State of art review on the incorporation of fibres in asphalt pavements

Cited by 23 publications

References 138 publications

Characterization of Cold Recycled Asphalt Mixtures including Reinforcing Fibers

Characterization of Cold Recycled Asphalt Mixtures including Reinforcing Fibers

Enhancing Fatigue Resistance in Asphalt Mixtures with a Novel Additive Derived from Recycled Polymeric Fibers from End-of-Life Tyres (ELTs)

Fiber-Reinforced Asphalt Mixture Design on Anti-Skid Surfacing for Field Testing High-Speed Vehicles on Pavements

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