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.
