Earticle

초록

영어

Recently, the use of fly-ash as a part of cement content in concrete is very common. But, it has been indicated that the compressive strength of concrete using large amount of fly-ash as a part of cement content in early age is low and carbonation velocity is fast. Thus, the purpose of this study is to suggest a reference for a design of mix proportion of mortar using fly-ash
with the physical properties found from a test performed: a test adding sodium sulfate to mortar proved that the early strength of mortar is increased.
In this study, the strength development property when micro grinding fly-ash fineness 4000,6000㎠/g was used, the problem of the early strength decline when fly-ash is added, and strength increasing effect and physical change using sodium sulfate as pozzolan stimulator for strength of age 28day increase are examined.

목차

Abstract
 1. 서론
  1.1 연구배경 및 목적
  1.2 연구범위 및 방법
 2. 이론적 고찰
  2.1 Fly Ash정의와 생산과정
  2.2 Fly Ash의 특징
 3. 실험계획 및 방법
  3.1 실험계획
  3.2 사용재료 및 비빔 방법
  3.3 실험방법
 4. 실험 결과 및 분석
  4.1 테이블 플로우 및 공기량
  4.2 압축강도 실험결과
  4.3 인장강도 실험결과
  4.4 휨강도 실험결과
  4.5 재령 28일 강도별 발현비율 검토
 5. 결론
 참고문헌

저자

• 안정민 [ An, Jung-Min | 국립한밭대학교 건축공학과 학부과정 ]
• 모다은 [ Mo, Da-Eun | 국립한밭대학교 건축공학과 학부과정 ]
• 이상수 [ Lee, Sang-Soo | 국립한밭대학교 건축공학과 교수, 공학박사 ]
• 송하영 [ Song, Ha-Young | 국립한밭대학교 건축공학과 교수, 공학박사 ]

참고문헌