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Viscoelasticity of Recycled Asphalt Mixtures with High Content Reclaimed SBS Modified Asphalt Pavement

Author

Listed:
  • Kunpeng Zheng

    (Research Institute of Highway, Ministry of Transport, Beijing 100088, China)

  • Jian Xu

    (Research Institute of Highway, Ministry of Transport, Beijing 100088, China)

  • Jie Wang

    (Research Institute of Highway, Ministry of Transport, Beijing 100088, China)

Abstract

For the concerns of investigating the viscoelastic properties of recycled asphalt mixtures incorporating high content reclaimed styrene-butadiene-styrene (SBS) modified asphalt pavement (RAP-SBS), asphalt mixture performance tester (AMPT) was applied to analyze the dynamic modulus and phase angle of recycled mixtures by the influence of RAP-SBS content, temperature, loading frequency, long-term aging (LOTA), and the incorporation of a rejuvenating agent. Master curves of recycled asphalt mixture regarding dynamic modulus and phase angle are developed, and the viscoelastic properties of recycled mixtures within a wide frequency range are characterized with the Christensen–Anderson–Marastean (CAM) model. Eventually, the one-way analysis of variance (ANOVA) was applied to investigate the role of factors on the viscoelasticity of recycled mixtures. The research indicates that (1) the elastic component of recycled mixtures elevates with the increasing of RAP-SBS content and loading frequency; as a result, the high-temperature stability of it enhances, while it is prone to cracking at low temperatures; (2) RAP-SBS content should be selected according to specific characteristics of pavement. For most cases, a content of 50% is recommended; (3) the recycled mixtures incorporating high-content RAP-SBS mixed with a rejuvenating agent has outstanding aging resistance performance; (4) RAP-SBS content is observed to have a significant influence on the viscoelasticity of recycled mixtures.

Suggested Citation

  • Kunpeng Zheng & Jian Xu & Jie Wang, 2023. "Viscoelasticity of Recycled Asphalt Mixtures with High Content Reclaimed SBS Modified Asphalt Pavement," Sustainability, MDPI, vol. 15(3), pages 1-13, January.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:3:p:2515-:d:1052115
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    References listed on IDEAS

    as
    1. Zaid Hazim Al-Saffar & Haryati Yaacob & Herda Yati Katman & Mohd Khairul Idham Mohd Satar & Munder Bilema & Ramadhansyah Putra Jaya & Ahmed Salama Eltwati & Hassanain Radhi Radeef, 2021. "A Review on the Durability of Recycled Asphalt Mixtures Embraced with Rejuvenators," Sustainability, MDPI, vol. 13(16), pages 1-24, August.
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    Cited by:

    1. Bethania Machado Correa & Luciano Pivoto Specht & Silvio Lisboa Schuster & Pedro Orlando Borges de Almeida Júnior & Cléber Faccin & Fernando Dekeper Boeira & Deividi da Silva Pereira & Luis Alberto He, 2023. "Fatigue Performance of Recycled Asphalt Mixtures: Viscoelastic Continuum Damage Approach and Cost Analysis," Sustainability, MDPI, vol. 15(11), pages 1-20, May.
    2. Kátia Aline Bohn & Liseane Padilha Thives & Luciano Pivoto Specht, 2023. "Physical, Rheological, and Permanent Deformation Behaviors of WMA-RAP Asphalt Binders," Sustainability, MDPI, vol. 15(18), pages 1-21, September.

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