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Hemp Fiber-Modified Asphalt Concretes with Reclaimed Asphalt Pavement for Low-Traffic Roads

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  • Apinun Buritatum

    (Center of Excellence in Innovation for Sustainable Infrastructure Development, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
    School of Civil and Infrastructure Engineering, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand)

  • Apichat Suddeepong

    (Center of Excellence in Innovation for Sustainable Infrastructure Development, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
    School of Civil and Infrastructure Engineering, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand)

  • Kongsak Akkharawongwhatthana

    (Center of Excellence in Innovation for Sustainable Infrastructure Development, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand)

  • Suksun Horpibulsuk

    (Center of Excellence in Innovation for Sustainable Infrastructure Development, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
    School of Civil and Infrastructure Engineering, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
    School of Civil Engineering, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
    Department of Geotechnics and Transportation, Universiti Teknologi Malaysia, Johor Bahru 81310, Malaysia)

  • Teerasak Yaowarat

    (Center of Excellence in Innovation for Sustainable Infrastructure Development, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
    School of Civil and Infrastructure Engineering, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand)

  • Menglim Hoy

    (Center of Excellence in Innovation for Sustainable Infrastructure Development, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
    School of Civil Engineering, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand)

  • Arul Arulrajah

    (Department of Civil and Construction Engineering, Swinburne University of Technology, Melbourne, VIC 3122, Australia)

  • Ahmad Safuan A. Rashid

    (Department of Geotechnics and Transportation, Universiti Teknologi Malaysia, Johor Bahru 81310, Malaysia)

Abstract

Reclaimed asphalt pavement (RAP) contributes substantially to the volume of recycled waste in the world. This research aims to evaluate the mechanistic performance of asphalt concrete with 100% RAP (RAP-AC) modified with natural hemp fiber (HF) reinforcement. The effects of HF lengths and HF contents on the mechanistic performance were investigated. The static tests included Marshall stability, strength index (SI), and indirect tensile strength (ITS), whilst the cyclic tests included indirect tensile resilient modulus (IT M r ), indirect tensile fatigue life (ITFL), and rutting resistance tests. The microstructural analysis revealed that HF could absorb more asphalt cement and function as a reinforcement. The 0.05% HF with a 24 mm HF length was suggested as the best ingredient. For various stress levels, the higher resilience properties—due to the addition of HF—contribute to higher levels of ITFL and rutting resistance. Based on a critical analysis of the cyclic test data, the distress model for HF-RAP-AC was developed for mechanistic pavement design. The outcome of this research promotes the usage of HF-RAP-AC as a greener material for low-traffic roads, which account for over 70% of the total roads worldwide.

Suggested Citation

  • Apinun Buritatum & Apichat Suddeepong & Kongsak Akkharawongwhatthana & Suksun Horpibulsuk & Teerasak Yaowarat & Menglim Hoy & Arul Arulrajah & Ahmad Safuan A. Rashid, 2023. "Hemp Fiber-Modified Asphalt Concretes with Reclaimed Asphalt Pavement for Low-Traffic Roads," Sustainability, MDPI, vol. 15(8), pages 1-17, April.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:8:p:6860-:d:1127090
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    References listed on IDEAS

    as
    1. Apinun Buritatum & Apichat Suddeepong & Suksun Horpibulsuk & Kongsak Akkharawongwhatthana & Teerasak Yaowarat & Menglim Hoy & Chalermphol Bunsong & Arul Arulrajah, 2022. "Improved Performance of Asphalt Concretes using Bottom Ash as an Alternative Aggregate," Sustainability, MDPI, vol. 14(12), pages 1-23, June.
    2. Celauro, Clara & Bernardo, Celauro & Gabriele, Boscaino, 2010. "Production of innovative, recycled and high-performance asphalt for road pavements," Resources, Conservation & Recycling, Elsevier, vol. 54(6), pages 337-347.
    3. Zaumanis, Martins & Mallick, Rajib B. & Frank, Robert, 2014. "100% recycled hot mix asphalt: A review and analysis," Resources, Conservation & Recycling, Elsevier, vol. 92(C), pages 230-245.
    Full references (including those not matched with items on IDEAS)

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