Earticle

초록

영어

Consumption of river sand has been remarkably increased due to lack of fine-natural river sand in current domestic construction site. Taking river sand in any matter human beings please, however, is found to be the major reason of coastal erosion and that of destroying habitats and an egg-laying site of oceanic life. Moreover, both of environmental development limitation and shortage of river sand are pushing further toward the difficulty in collecting an aggregate. As being faced problems with getting an aggregate, researches ―that are suggesting an alternative substitution which can be used instead of a natural aggregate― are now under way. According to the studies, it is required to extent the usage of steel slag. As a part of a basic research focusing on spreading the use of steel slag which is quick frozen with rapid air, this study is aiming for
suggesting a ground support from the Physical Properties of Mortar experiment. This experiment is formed that 6 ascending levels of steel slag replacement ratio-0, 20, 40, 60, 80, 100%, and 40 percent of water-cement ratio. Setting two opposite environment, one measured air content and table flow in liquid condition, and another measured compressive strength, tensil strength, and flextural strength in hardening condition. As a result of the experiment, getting higher level tends to show increased fluidity and decreased in air content at the same time. The other measurements-compressive strength, tensil strength, and flextural strength-have also increased as replacement ratio goes up. Therefore, it is considered that if the steel slag substitute concrete aggregate, it will give a boost up the improvement in fluidity and the quality of the aggregate.

목차

Abstract
 1. 서론
  1.2 국내 제강슬래그의 재활용 현황
  1.3 콘크리트용 제강슬래그 골재의 품질
 2. 실험 계획
  2.1 실험계획 및 수준
  2.2 사용재료
  2.3 실험방법
 3. 실험결과 및 고찰
  3.1 굳지 않은 모르타르의 성상
  3.2 경화 성상
 4. 결론
 참고 문헌

저자

• 김가영 [ Kim, Ka-Young | 국립한밭대학교 건축공학과 학부과정 ]
• 주신영 [ Ju, Shin-Young | 국립한밭대학교 건축공학과 학부과정 ]
• 이상수 [ Lee, Sang-Soo | 국립한밭대학교 건축공학과 교수, 공학박사 ]
• 송하영 [ Song, Ha-Young | 국립한밭대학교 건축공학과 교수, 공학박사 ]

참고문헌