친환경 고화재를 활용한 급속 되메움재의 특성

초록

This research will develop eco-friendly and rapid backfill for open-cut construction of Near surface transit. For this purpose, we have analyzed the characteristics of light weight mixed soil using OPC and slag cement in previous studies. In addition, light mixed soil with 300 and 500 KPa were manufactured using eco-friendly solidification material. Then, the unconfined compressive strength and CO₂emission were measured for the light mixed soil specimens and compared with previous studies. It was observed from the results that light mixed soil using eco-friendly solidification material satisfy the required unconfined compressive strength and reduce CO₂emission compared light mixed soil using OPC and slag cement.