Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
권호 표지
DOI QR코드

DOI QR Code

Fabrication of the Cement for the Solidification of the Toxic Waste using Waste Concrete Powder

폐콘크리트 미분말을 이용한 유해 폐기물 고화용 시멘트의 제조

  • Kim, In-Seob (Department of Ceramic Engineering, Hanyang University) ;
  • Won, Jong-Han (Department of Ceramic Engineering, Hanyang University) ;
  • Choi, Kwang-Hui (Department of Ceramic Engineering, Hanyang University) ;
  • Choi, Sang-Hul (Department of Ceramic Engineering, Hanyang University) ;
  • Lee, Jong-Gyu (Ceramic${\cdot}$Building Materials Department, KICET) ;
  • Sohn, Jin-Gun (Environment Energy Research Division, Materials Utilization Research Team, RIST) ;
  • Shim, Kwang-Bo (Department of Ceramic Engineering, Hanyang University)
  • 김인섭 (한양대학교 세라믹공학과) ;
  • 원종한 (한양대학교 세라믹공학과) ;
  • 최광휘 (한양대학교 세라믹공학과) ;
  • 최상흘 (한양대학교 세라믹공학과) ;
  • 이종규 (요업기술업 세라믹${\cdot}$건재부) ;
  • 손진군 (포항산업과학연구원 자원활용연구팀) ;
  • 심광보 (한양대학교 세라믹공학과)
  • Published : 2002.01.01
Download PDF
⟨ Previous Next ⟩

Abstract

The cement for solidification of the toxic waste was fabricated using a mixture of the waste concrete powder and blast furnace slag in the ratio of 1:1 and its hydrate morphology and compressive strength of the sample were evaluated in order to apply to the solidification of the COREX sludge. The X-ray diffraction analysis of the sample which prepared by the addition of 10% Portland cement and hemihydrate showed the presence of $Ca(OH)_2$, ettringite, gel-phase and C-S-H hydrate. Compressive strength of the sample exhibited enough high to use as a solidification cement. The strength of the sample was over 140 kgf/$m^2$ in 7 days in case of solidification of the COREX sludge and the sample possess sufficient morphology for the solidification and stabilization of the waste sludge.

폐콘크리트 미분말과 고로 슬래그를 사용하여 유해 산업폐기물 고화용 시멘트를 제조한 후 수화성상과 압축강도를 평가하고 이 시멘트를 COREX 슬러지에 첨가하여 고화처리 하였다. 폐콘크리트 미분말과 슬래그 미분말을 1:1로 하고 여기에 포틀랜드 시멘트와 반수석고를 각각 10% 첨가하여 만든 고화용 시멘트로 사용 가능한 강도를 발현하고 있었다. 이 시멘트로 COREX 슬러지를 고화한 경우에 7일에서 140 kgf/$cm^2$을 상회하는 강도를 보여 폐슬러지를 고화시켜 안정화하는데 응용할 수 있음을 확인하였다.

Keywords

References

  1. M. Yamada, 'Reuse of Waste Concrete for New Concrete,' Cement & Concrete, 544 1 (1992)
  2. H. Matsushita, H. Tsuruta and H. Ohkubo, 'Study on Present State of Arts and Problems on Recycling Used Wastes as Constructional Materials,' Japan Cement Association Proceedings of Cement & Concrete, 51 518 (1997)
  3. A. Yoda and T. Yokomuro, 'Properties of Concrete Using Recycled Coarse Aggregate from Demolished Concrete Debris,' Japan Cement Association Proceedings of Cement & Concrete, 48 500 (1994)
  4. Y. Ono, K. Sekino and H. Waki, 'Fundamental Properties of Concretes with Rebirth Powders for Crushed Debris of Concrete,' 49th Annuat Meeting of Japan Cement Association, 68 400 (1995)
  5. H. Matsushita, H. Tsuruta, Y. Sue and A. Kokubo, 'A Study on Compressive Strength and Drying Shrinkage of Recycled Aggregate Concrete,' Cement Science and Concrete Technotogy, 54 476 (2000)
  6. Y. Kojima, T. Tasue and Y. Arai, 'Preparation of Reclaimed Cement from Waste Concrete,' Gypsum & Lime, 244 153 (1993)
  7. T. Kemi, Y. Nakata, M. Arai and T. Furukawa, 'A Study ofRecrushed Concrete Powder,' 48th Annuat Meeting ofJapan Cement Association, 94 544 (1994)
  8. T. Kemi, Y. Nakata, N. Nishiyama, S. Hiraishi and T. Furukawa, 'Characters of Concrete Including Recycled Powder,' 49th Annuat Meeting of Japan Cement Association, 69 406 (1995)
  9. M. Tamura, F. Tomosawa and T. Noguchi, 'Recycled Ori ented Concrete with Easy to collect Aggregate,' JapanCement Association Proceedings of Cement and Concrete,51 494 (1997)
  10. K. Yamamoto, M. Konishi, A. Matsuda and Y. Iwamoto, 'Properties of Recycled Cement Reproduced from Waste Concrete,' Cement Sci. and Concrete Tech., 52 186 (1998)
  11. M. Tamura, Y. Kitutaka and K. Kobayashi, 'Development of Recyclable Hydraulic Powders by Reforming Treatments for Recovered Cementitious Powders from Recycled Aggregate Manufacturing Processes,' Cement Sci. and Concrete Tech., 54 757 (2000)
  12. J. H. Won, T. H. Ahn, K. H. Choi, S. H. Choi, J. G. Shon and K. B. Shim, 'Environmentally Adaptive Stabilization of Hazardous Heavy Metal Waste by Cementious Materials (I),' J. Kor. Ceram. Soc., 39 [7] 680-85 (2002) https://doi.org/10.4191/KCERS.2002.39.7.680
  13. J. H. Won, K. H. Choi, S. H. Choi, H. H. Lee, J.G. Shon and K. B. Shim, 'Environmentally Adaptive Stabilization of Hazardous Heavy Metal Waste by Cementious Materials (II),' J. Kor. Ceram. Soc., 39 [12] 1138-42 (2002) https://doi.org/10.4191/KCERS.2002.39.12.1138