Valorization of petroleum sludge as rejuvenator for recycled asphalt binder and mixture

Memon, Abdul Muhaimin; Sutanto, Muslich Hartadi; Memon, Zubair Ahmed; Khahro, Shabir Hussain; Memon, Rizwan Ali

doi:10.1016/j.cscm.2024.e03318

Case Studies in Construction Materials

2024

DOI: 10.1016/j.cscm.2024.e03318

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Valorization of petroleum sludge as rejuvenator for recycled asphalt binder and mixture

Abdul Muhaimin Memon,

Muslich Hartadi Sutanto,

Zubair Ahmed Memon

et al.

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2024

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Effect of Recycled Asphalt Mixture and Solid Waste-Based Solidification Materials on Performance of Cold-Regenerated Asphalt Mixture

Shu,

Zeng,

et al. 2024

Materials

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In this study, an aging asphalt mixture was regenerated by a waste-based rejuvenator and cemented by solid waste-based solidification materials (SSMs). A splitting test, wheel tracking test, and three-point bending test were conducted to evaluate the properties of the regenerated asphalt mixture (RAM). The results reveal that the properties of the asphalt mixture were not diminished or were moderately enhanced by the 30% substitution of RAP. With the substitution of RAP to 100%, the splitting tensile strength, dynamic stability, and splitting strength ratio were decreased by 13%, 15%, and 5%, respectively. With the 100% substitution of SSMs for cement, the compressive strength, dynamic stability, flexural strain, and splitting strength ratios of the RAM were increased by 40%, 32%%, 14%, and 8%, respectively. The lightweight components can be supplemented, and low-temperature deformation and interlayer flowability can be improved by the incorporation of the rejuvenator. The generation of hydrated calcium silicate and ettringite for SSMs is greater than those of cement. The massive generation of ettringite has been observed to increase the solid phase volume by 120%, which may facilitate a more complete filling of the remaining pores in the RAM due to water evaporation. The regeneration and cement on green and the high performance of the rejuvenator and the SSM markedly enhanced RAM performance.

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Effect of Recycled Asphalt Mixture and Solid Waste-Based Solidification Materials on Performance of Cold-Regenerated Asphalt Mixture

Shu,

Zeng,

et al. 2024

Materials

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show abstract

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Valorization of petroleum sludge as rejuvenator for recycled asphalt binder and mixture

Cited by 1 publication

References 39 publications

Effect of Recycled Asphalt Mixture and Solid Waste-Based Solidification Materials on Performance of Cold-Regenerated Asphalt Mixture

Effect of Recycled Asphalt Mixture and Solid Waste-Based Solidification Materials on Performance of Cold-Regenerated Asphalt Mixture

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