A general method to expand the urban green space is to utilize the artificial ground that is unutilized in cities, such as buildings and rooftops. The processing technology of bottom ashes in thermal power stations shows a tendency to change from the wet process to the dry process. The dry process bottom ashes, which arise from the new process, are expected to be utilized as light-weight artificial soil, because they are poor in water, salt, and unburned carbon, which are not the characteristics of the existing wet process bottom ashes, and have a lower density than general aggregate. This study shows that the coefficient of permeability, saturation bulk density, pH, EC, and organic matter content of dry process bottom ashes are similar to those of perlite. Therefore, we conclude that dry process bottom ashes can be utilized as artificial soil.

I. 서 론
 II. 건식공정 석탄 바닥재의 기초적 특성
  1. 석탄 바닥재 건식공정 처리방법
  2. 건식 공정 석탄 바닥재의 특성
 III. 유기성 토양 개질재료 실험
  1. 석탄 바닥재의 인공토양 적용시 개선할 사항
  2. 인공토양 혼합재료의 기초적 특성
 IV. 유기계 소재를 혼합한 재료의 기초적 특성
  2. 유기계 혼합 토양의 화학적 특성
 V. 결 론
 사 사
 References

• 홍성록(한국건설생활환경시험연구원) | Sung-Rog Hong
• 박헌일(한국건설생활환경시험연구원) | Hun-Il Park Corresponding author
• 선정수(공주대학교) | ·Jung-Soo Sun
• 김진만(공주대학교) | Jin-Man Kim