Bulletin of the Chinese Ceramic Society, Volume. 42, Issue 5, 1740(2023)

Performance and Application Mechanism of Copper Slag Tailings as Filler of Asphalt Mixture

YE Yuanlin1...2,*, LUO Liqun1,2, CHEN Rongsheng3, WANG Mingxi3, LIU Cheng1,2, and LEI Yanming12 |Show fewer author(s)
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
  • 3[in Chinese]
  • show less

    The purpose of using copper slag tailings as filler on the performance of asphalt mixture, the physical and chemical properties of copper slag tailings were analyzed, the optimum mix ratio of asphalt mixture was determined through Marshall stability test. Rutting test, split test, freeze-thaw split test, and immersion Marshall test were carried out to evaluate the road performance of asphalt mixture, and the copper slag tailings asphalt pavement was tested. The adhesion characteristics of copper slag tailings and asphalt were analyzed by microscopic morphology. The results show that the content of copper slag tailings in AC-25C, AC-20C, AC-16C and AC-13C asphalt mixture is 4%, 3%, 3% and 2% (mass fraction) respectively, and the asphalt mixture has the best performance when the corresponding asphalt content is 38%, 42%, 45% and 46% (mass fraction). Compared with limestone asphalt mixture, the high-temperature stability, crack resistance and water stability of copper slag tailings asphalt mixture have been significantly improved. Copper slag tailings asphalt pavement has good performance. Its water permeability coefficient is 62 mL/min, friction coefficient is 90, and compactness is 96.4%, all of which meet the specifications and standards. The asphalt mortar formed by copper slag tailings and asphalt has good bonding performance.

    Tools

    Get Citation

    Copy Citation Text

    YE Yuanlin, LUO Liqun, CHEN Rongsheng, WANG Mingxi, LIU Cheng, LEI Yanming. Performance and Application Mechanism of Copper Slag Tailings as Filler of Asphalt Mixture[J]. Bulletin of the Chinese Ceramic Society, 2023, 42(5): 1740

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category:

    Received: Sep. 20, 2022

    Accepted: --

    Published Online: Aug. 13, 2023

    The Author Email: Yuanlin YE (ye.yuanlin@qq.com)

    DOI:

    CSTR:32186.14.

    Topics