• 专利标题:   Self-sensing intelligent conductive asphalt pavement material, prepared by doping conductive material in asphalt mixture, where surface of coarse aggregate is covered with conductive cement-based coating to form intelligent aggregate unit.
  • 专利号:   CN113185190-A
  • 发明人:   JIANG Z, XIE M, XU L, WEN Y, WU K, WANG Z
  • 专利权人:   UNIV TONGJI
  • 国际专利分类:   C04B111/94, C04B020/10, C04B026/26
  • 专利详细信息:   CN113185190-A 30 Jul 2021 C04B-026/26 202166 Pages: 9 Chinese
  • 申请详细信息:   CN113185190-A CN10427552 21 Apr 2021
  • 优先权号:   CN10427552

▎ 摘  要

NOVELTY - Self-sensing intelligent conductive asphalt pavement material, prepared by asphalt mixture, and 0.005-0.5 wt.% first conductive material doped in the asphalt mixture, where the surface of a coarse aggregate is covered with a conductive cement-based coating to form an intelligent aggregate unit. The doping amount of the first conductive material is 0.3-0.5 wt.% asphalt mixture. The first conductive material is steel fiber, nickel powder, carbon fiber, graphite, carbon black, graphene or carbon nano-tube. The conductive cement-based coating is formed by adding 2 wt.% second conductive material to gel material, solidifying and hardening. The gel material is Portland cement, common Portland cement, sulfoaluminate cement, slag Portland cement, pozzolanic Portland cement and/or fly ash-based Portland cement. The second conductive material is steel fiber, nickel powder, carbon fiber, graphite, carbon black, graphene and/or carbon nano-tube. USE - Used as a self-sensing intelligent conductive asphalt pavement material. ADVANTAGE - The material realizes the intelligent monitoring of road surface dynamic response under vehicle load action, realizes the self-sensing of stress, strain, crack and other road structure service information, has low cost, easy implementation, and accurate monitoring.