논문 상세보기

Improving Overlaid Asphalt Pavement Quality by Application of New Equipment Contains Simultaneous Asphalt Emulsion Spreading System

  • 언어ENG
  • URLhttps://db.koreascholar.com/Article/Detail/348177
모든 회원에게 무료로 제공됩니다.
한국도로학회 (Korean Society of Road Engineers)
초록

In case of performing asphalt pavement overlay on existing concrete pavement layer, applying asphalt emulsion tack-coating or spreading prime-coating is considered to improve adhesion between asphalt and concrete layer. After coating work is done a curing process is considered not only for promoting evaporation process in coated (and/or spread) asphalt emulsion, but also for generating a membrane which can act as a bonding agent. Finally, asphalt overlay construction is performed when this curing process is completely done. However, during asphalt overlay construction process remarkable amount of spread tack-coating layer is lost due to asphalt material transfer vehicles (e.g. trucks, approximately 40~50% of total spread tack coating material is lost). In this paper, a new pavement equipment contains simultaneous asphalt emulsion spreading ability and corresponding construction techniques are introduced. Through applying this equipment, non-stop two step sequent working process: spreading asphalt emulsion on to existing concrete pavement layer then paving asphalt material for overlay construction, is available. During pavement working process temperature of asphalt material was kept with ranged between 130ºC and 170ºC. After performing field performance evaluation, it was found that crucial improvement in pavement layer adhesion, crack and rutting resistant ability were observed compared to the conventional paving method.

저자
  • Hong Kwan Seo(General manager, KEC road maintenance department, Gwang-Joo, South Korea)
  • Kyung Ju Lee(General manager, KEC road maintenance department, Gwang-Joo, South Korea)
  • Ki Hoon Moon(Senior Researcher, KEC research division (pavement research division), South Korea)
  • Oh Sun Kwon(Senior Researcher, KEC research division (pavement research division), South Korea)
  • Hyun Jun Kwak(General manager, KEC road maintenance department, Gwang-Joo, South Korea)
  • Jin Whan Kim(Senior Researcher, KEC research division (pavement research division), South Korea)