논문 상세보기

공항포장 시멘트안정처리기층에 적용하기 위한 투수콘크리트 개발에 관한 기초연구 KCI 등재

Fundamental Study on Pervious Concrete Materials for Airport Pavement Cement Treated Base Course

  • 언어KOR
  • URLhttps://db.koreascholar.com/Article/Detail/250113
구독 기관 인증 시 무료 이용이 가능합니다. 4,000원
한국도로학회논문집 (International journal of highway engineering)
한국도로학회 (Korean Society of Road Engineers)
초록

PURPOSES : As a research to develop a cement treated base course for an airport pavement which can enhance its drainage, this paper investigated the strength, infiltration performance and durability of the pervious concrete with respect to maximum coarse aggregate sizes and compaction methods. METHODS : This study measured compressive strength, infiltration rate, continuous porosity and freeze-thaw resistance of pervious concrete specimens, which were fabricated with five different compaction methods and different maximum aggregate sizes. In addition, in order to reduce the usage of Portland cement content and to enhance environment-friendliness, a portion of the cement was replaced with Ground Granulated Blast Furnace Slag (GGBS). RESULTS: Compressive strength requirement, 5 MPa at 7 days, was met for all applied compaction methods and aggregate sizes, except for the case of self-compaction. Infiltration rate became increased as the size of aggregate increased. The measured continuous porosities varied with the different compaction methods but the variation was not significant. When GGBS was incorporated, the strength requirement was successfully satisfied and the resistance to freezing-thawing was also superior to the required limit. CONCLUSIONS: The infiltration rate increased as the maximum size of aggregate increased but considering construct ability and supply of course aggregate, its size is recommended to be 25mm. With the suggested mix proportions, the developed pervious concrete is expected to successfully meet requirements for strength, drainage and durability for cement treated base or subbase course of an airport pavement.

저자
  • 김승원 | Kim, Seung Won
  • 오지현 | Oh, Ji Hyeon
  • 장봉진 | Jang, Bong Jin
  • 주민관 | Ju, Min Kwan
  • 김인태 | Kim, In Tai
  • 박철우 | Park, Cheol Woo