Effect of Sodium Alginate Fibers Encapsulating Rejuvenators on the Self-Healing Capability and Cracking Resistance of Asphalt Mixtures

Zaremotekhases, Farah; Idris, Ipshit Ibne; Hassan, Marwa; Mohammad, Louay N.

doi:10.1061/(asce)mt.1943-5533.0003440

Cited by 21 publications

(2 citation statements)

References 27 publications

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“…Nevertheless, thermally induced healing necessitates human intervention throughout the service life of bituminous pavements, and the heating process might expedite the aging of bitumen [16]. In response to this, researchers have proposed the method of encapsulating the rejuvenator with microcapsules or fibers [17,18]. The fiber encapsulation ensures a higher likelihood of rejuvenator release into cracks due to the increased probability of cracks intersecting the fiber network [19].…”

Section: Introductionmentioning

confidence: 99%

Road Performance and Self-Healing Property of Bituminous Mixture Containing Urea–Formaldehyde Microcapsules

Zhang,

Yao,

Cheng

2024

Materials

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Urea–formaldehyde (UF) is a common shell material for self-healing microcapsules; however, the influence of urea–formaldehyde microcapsules (UFMs) on the road performance of bituminous mixtures and the sensitivity of their healing abilities remains unclear. In this paper, UFMs were prepared via in situ polymerization (ISP), followed by an investigation into the road performance of UFM self-healing bituminous mixtures through various tests, including wheel tracking, immersed Marshall, freeze–thaw splitting, low-temperature bending, and three-point bending fatigue tests. Subsequently, the impact of the damage degree, healing duration, and temperature on the self-healing property was discussed. The results indicated that incorporating 3 wt% UFMs into bitumen significantly improved the high-temperature stability and fatigue resistance of the bituminous mixture; for example, its dynamic stability and fatigue life could be increased by about 16.5% and 10%, respectively. However, it diminished the thermal crack resistance, as evidenced by decreases in bending tensile strength and strain by 3.7% and 10.1%, respectively. And it did not markedly improve the moisture susceptibility. Additionally, the maximum improvement observed in the healing rate was about 9%. Furthermore, the healing duration and temperature positively influenced the bituminous mixture’s self-healing, whereas the degree of damage exerted a negative impact, with a relatively significant effect.

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Section: Introductionmentioning

confidence: 99%

Road Performance and Self-Healing Property of Bituminous Mixture Containing Urea–Formaldehyde Microcapsules

Zhang,

Yao,

Cheng

2024

Materials

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“…One of the most effective ways to decrease geotechnical problems is using reinforcement in soils [4,23,34,45,52,65]. The use of reinforced soil is an effective way to reduce the horizontal pressure on the abutment and the backfill's subsequent settlement [39,47].…”

Section: Introductionmentioning

confidence: 99%

Physical modeling of the long-term behavior of integral abutment bridge backfill reinforced with tire-rubber

et al. 2021

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The primary objective of this study is to investigate the benefits of adding tire rubber as an inclusion to backfill behind integral bridge abutments. In this respect, four physical model tests that enable cyclic loading of the backfill-abutment are conducted and evaluated. Each test consisted of 120 load cycles, and both the horizontal force applied to the top of the abutment wall and the pressures along the wall-backfill interface is measured. The primary variable in this study is the tire rubber content in the backfill soil behind the abutment. Results show adding tire rubber to the backfill would be beneficial for both pressure and settlement behind the abutment. According to results, adding tire rubber to soil decreases the equivalent peak lateral soil coefficient (Keq-peak) up to 55% and earth pressure coefficient ($${K}^{*}$$ K ∗ ) at upper parts of the abutment up to 59%. Moreover, the settlements of the soil behind the wall are decreased up to 60%.

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Observation of the microstructure and shape of self-healing microvascular in asphalt

Wang

Gao

2021

Construction and Building Materials

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Effect of Sodium Alginate Fibers Encapsulating Rejuvenators on the Self-Healing Capability and Cracking Resistance of Asphalt Mixtures

Cited by 21 publications

References 27 publications

Road Performance and Self-Healing Property of Bituminous Mixture Containing Urea–Formaldehyde Microcapsules

Road Performance and Self-Healing Property of Bituminous Mixture Containing Urea–Formaldehyde Microcapsules

Physical modeling of the long-term behavior of integral abutment bridge backfill reinforced with tire-rubber

Observation of the microstructure and shape of self-healing microvascular in asphalt

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