IDEAS home Printed from https://ideas.repec.org/a/gam/jsusta/v14y2022i24p16717-d1002366.html
   My bibliography  Save this article

Influence of Recycling Agents Addition Methods on Asphalt Mixtures Properties Containing Reclaimed Asphalt Pavement (RAP)

Author

Listed:
  • Hassan Ziari

    (Department of Highway and Transportation Engineering, School of Civil Engineering, Iran University of Science and Technology, Narmak, Tehran 1684613114, Iran)

  • Mojtaba Hajiloo

    (Department of Highway and Transportation Engineering, School of Civil Engineering, Iran University of Science and Technology, Narmak, Tehran 1684613114, Iran)

  • Pooyan Ayar

    (Department of Highway and Transportation Engineering, School of Civil Engineering, Iran University of Science and Technology, Narmak, Tehran 1684613114, Iran)

Abstract

Recycling agents (RAs) are used to restore the physicochemical properties of the aged asphalt binder existing in the reclaimed asphalt pavement (RAP) material. The best location for adding the RAs in the manufacturing process of the asphalt mixtures containing RAP has always been of concern to asphalt mixture researchers. In this study, vegetable, paraffinic and aromatic extract oils were used as RAs. The effect of RA location on the performance properties of the asphalt mixtures containing different percentages of the RAP material was investigated by adding the RAs in three different locations, including in the virgin binder, in the hot RAP material, and in the final mixture. For this aim, the rutting, cracking, and moisture sensitivity of the mixtures containing different RAs at different locations was investigated. The results showed that the best location for adding the RAs is different for various RAs. The best place for adding the paraffinic, aromatic extract, and vegetable oils in terms are in the virgin binder, in the RAP, and the final mixture, respectively. Therefore, using RAs in their appropriate location can improve the mechanical properties of asphalt mixtures containing RAP.

Suggested Citation

  • Hassan Ziari & Mojtaba Hajiloo & Pooyan Ayar, 2022. "Influence of Recycling Agents Addition Methods on Asphalt Mixtures Properties Containing Reclaimed Asphalt Pavement (RAP)," Sustainability, MDPI, vol. 14(24), pages 1-18, December.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:24:p:16717-:d:1002366
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2071-1050/14/24/16717/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/2071-1050/14/24/16717/
    Download Restriction: no
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    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.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jsusta:v:14:y:2022:i:24:p:16717-:d:1002366. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.