화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of the Korean Industrial and Engineering Chemistry, Vol.16, No.3, 317-322, June, 2005
Export Citation
폐콘크리트 미분말을 충전재로 재활용한 폴리머 모르타르의 물성
Physical Properties of Polymer Mortar Recycling Waste Concrete Powder as a Filler
황의환†, 최재진1, 황택성2
  • 공주대학교 화학공학부
  • 1공주대학교 건설환경공학부
  • 2충남대학교 화학공학부
Eui-Hwan Hwang†, Jae-Jin Choi1, and Taek-Sung Hwang2
  • Department of Chemical Engineering, Kongju National Univesity, 275 Budae-Dong Cheonan, Chungnam 330-717, Korea
  • 1Department of Construction & Environmental Engineering, Kongju National University, 275 Budae-Dong Cheonan, Chungnam 330-717, Korea
  • 2Department of Chemical Engineering, Chungnam National University, Daejeon 305-764, Korea
E-mail:
초록
오늘날 대규모 건설사업에 따른 골재의 고갈과 환경보호 측면에서 폐콘크리트 골재의 재활용이 절실히 요구되고 있다. 본 연구에서는 페콘크리트의 분쇄공정에서 발생되는 페콘크리트 미분말을 폴리머 모르타르의 충전재 대용으로 재활용하고자 하였다. 폴리머 모르타르의 공시체는 폴리머 결합재의 첨가율을 9~15 wt%, 실리카 미분말 충전재 대용의 폐콘크리트 미분말 치환율을 0~20 wt%, 0.1~0.3 mm 잔골재(21~24 wt%)와 0.7~1.2 mm 잔골재(44~47 wt%)의 첨가율을 65~71 wt% 범위로 다양하게 변화시켜 제조하였다. 폴리머 모르타르의 물성을 평가하기 위하여 압축 및 휨강도, 흡수율, 내열수성, 내산성, 세공분포특성, 전자현미경에 의한 미세조직 관찰시험을 행하였다. 시험결과, 폴리머 모르타르의 물성은 폴리머 결합재의 첨가율 증가에 따라 현저히 증가되었으나 페콘크리트 미분말의 치환율 증가에 따라서는 크게 저하되었다.
Nowadays, recycling of aggregates from the waste concrete is in big demand due to the protection of environment and the shortage of aggregates that are needed for ever expanding construction projects. This study was undertaken to examine the feasibility of recycling waste concrete powder produced in the crushing process of demolished concrete as a filler material for polymer mortar. In this study, polymer mortar specimens were prepared by varying the mix proportion of polymer binder (ranging 9~15 wt%), waste concrete powder (ranging 0~20 wt%) substituted for silica powder, 0.1~0.3 mm fine aggregate (ranging 21~24 wt%) and 0.7~1.2 mm fine aggregate (ranging 44~47 wt%). For the prepared polymer mortar specimens, various physical properties such as strength, water absorption, heat water resistance, acid resistance, pore distribution and SEM observation were investigated in this work. As a result, physical properties of Polymer mortar were observed to have remarkably improved with an increase of polymer binder, but greatly deteriorated with an increase of substitution quantity of waste concrete powder.
Keywords:polymer mortar;polymer binder;filler;recycling;waste concrete powder
  1. Song HW, Byun KJ, Ha JH, J. Korean Concrete Institute, 12, 3 (2000)
  2. Kim MH, J. Korean Concrete Institute, 10, 52 (1998)
  3. Lee BH, Kim KW, Park JS, Kim JY, J. Korean Concrete Institute, 7, 136 (1995)
  4. Ryu YK, J. Korean Concrete Institute, 9, 4 (1997)
  5. Kim MH, Kang SP, J. Korean Concrete Institute, 15, 21 (2003)
  6. Tomosawa F, Noguchi T, Integrated Design and Environmental Issues in Concrete Technology, 263 (1996)
  7. 友澤 史紀, 野口 貴文, コンクㅡト工學, 35, 57 (1997)
  8. Hansen TC, RILEM Report, 6, 116, E&FN SPON (1989)
  9. Kim MH, J. Korean Concrete Institute, 9, 11 (1997)
  10. Kim GY, J. Korean Concrete Institute, 15, 36 (2003)
  11. Shin SW, J. Korean Concrete Institute, 15, 52 (2003)
  12. 橫山 滋, コンクㅡト工學, 35, 49 (1997)
  13. 嘉文 雅史, コンクㅡト工學, 35, 53 (1997)
  14. Ohama Y, Proceedings of the Fourth ASPIC, 39 (2003)
  15. Hwang EH, Lee BK, Choi JJ, Proceedings of the Fourth ASPIC, 153 (2003)
  16. Hwang EH, Kil DS, Hwang TS, J. Korean Ind. Eng. Chem., 11(7), 792 (2000)