DOI QR코드

DOI QR Code

다량의 산업부산물을 활용한 슬러리계 되메움 재료의 물성 평가

Properties Evaluation of Controlled Low Strength Materials Used Industrial by-Products of A Great Quantity

  • 투고 : 2020.08.06
  • 심사 : 2020.09.29
  • 발행 : 2020.10.20

초록

CLSM은 다량의 산업부산물 및 폐기물을 안전하게 유효 활용할 수 있는 슬러리계의 되메움 재료이다. 본 연구에서는 FA 및 모래의 대체 재료로써 GBFS 및 FNS, GF의 적용가능성을 평가함은 물론 나아가 도로 및 노면 하부, 싱크홀 및 포토홀 등의 되메움 및 공동충전재로서의 현장적용을 위한 품질기준을 제안하고자 하였다. 이를 통해 선진외국 대비 재생자원의 유효 재활용을 향상시킴은 물론 국내에서의 CLSM 확대적용 및 보급을 위한 기초적인 자료로 제안하고자 하였다.

In this study, the engineering characteristics of CLSM mixed with GBFS and GF were identified to review the applicability as a replacement material and further evaluate the recharge and field applicability as a joint filler material. This study has resulted in the following findings. First, Using more than 30% of GBFS to replace FA enabled bleeding control through improved fluidity. Moreover, it has been confirmed that effective strength and proper quality can be achieved when it was applied as a refiller and joint filler material with higher early strength than the base material. Second, When using more than 30% of FNS to replace sand, it was found that adding 0.3~0.35 of the AE agent is effective for bleeding control through improved fluidity. Third, When using more than 30% of both GBFS and FNS in combination, it was found that adding 0.3~0.35 of the AE agent is effective for bleeding control through improved fluidity. Also, it was confirmed that proper mixing of 15~60% of GF secured the effective strength and desired quality as a refiller and joint filler material. Fourth, The relationship between the superficial level and internal micro pores of CLSM from the curing process needs to be discussed and reviewed in more detail through further research studies.

키워드

참고문헌

  1. ACI Committee 229. Controlled Low Strength Materials. ACI Manual of Concrete Practice. ACI 229 R(13). 2013.
  2. Civil Research Institute Ministry of Construction Japanese Government. Liquified Stabilized Soil (CLSM) Uses Technical Manual. Gibodan publishing company. 2008.
  3. Hokkaido Civil Technical Concrete Research Committee. CLSM Use Manual. Japan: CLSM Supply Review Committee; 2006. p. 1-14.
  4. Kim DH, Lim NG, Horiguchi T. Rational method of clsm mixture with sewage sludge cinder. Journal of Concrete Institute of Korea. 2012 Aug;24(4):465-72. http://doi.org/10.4334/JKCI.2012.24.4.465
  5. Horiguchi T, Fujita R, Shimura K. Applicability of controlled low-strength materials with incinerated sewage sludge ash and crushed-stone powder. Journal of Materials in Civil Engineering. 2011 Jun; 23(6):767-9. https://doi.org/10.1061/(ASCE)MT.1943-5533.0000201
  6. Mizuguchi 0, Onodera T, Horiguchi T, Ii H. Application of CLSM(Controlled Low Strength Materials) in japan. Journal of Concrete Institute of Japan. 2004 Jan;42(10):19-28. https://doi.org/10.3151/coj1975.42.10_19
  7. Horiguchi T, Okumura H, Saeki N. Durability of CLSM with Used Foundry Sand Bottom Ash in Cold Regions. ACI Special Publication SP. 2001 Jun;200(2):325-48.
  8. Horiguchi I, Saeki N. Compressive strength and leachate characteristics of new green CLSM with ecocement and melted slag from municipal solid waste. ACI Special Publication SP. 2004 May;221:529-58.
  9. Horiguchi T, Okumura H, Saeki N. Optimization of CLSM mixture proportion with combination of clinker ash and fly ash. ACI Special Publication SP. 2001 Jun;199:307-24.
  10. Keon CW, Lim NG. Fundamental properties of low strength concrete mixture with blast furnace slag and sewage sludge. Journal of the Korea Institute of Structural Maintenance and Inspection. 2013 Apr;17(3):136-44. http://doi.org/10.11112/JKSMI. 2013.17.3.136