Earticle

초록

영어

The viscosity of high-flowability paste is very high compared to ordinary concrete for the low water-binder ratio(W/B).
Therefore, high-flowability concrete is positively necessary to high-range water reducing agent. High-Flowability paste can make much higher fluidity with no occurrence of segregation, by its higher viscosity and lower yield value than ordinary concrete.
The flowability of high-flowability paste must be evaluated not only by convention consistency test such as slump test but also by the base of the rheological properties of the fresh concrete.
The purpose of this study is to analyze the physical properties of high-flowability paste according to the replacement ratio of the Polycarboxylate high-range water reducing agent.; high-flowability paste is considered as Bingham plastic fluid with the rheology parameters of the plaste viscosity and yield value.

목차

Abstract
 1. 서론
 2. 폴리카르본산계 고성능 감수제의 이론적 고찰
  2.1 고성능감수제
  2.2 고성능감수제의 작용기구
 3. 실험 개요
  3.1 사용 재료 및 물성
  3.2 실험 인자 및 수준
  3.3 배합
  3.4 측정항목 및 측정방법
 4. 실험결과 및 고찰
  4.1 페이스트의 플로우 시험에 의한 유동성 평가
  4.2 레올로지 시험에 의한 유동성 평가
  4.3 경과시간에 따른 페이스트의 플로우 값의 변화
 5. 결론
 참고문헌

저자

• 조은영 [ Cho, Eun Young | 정회원, 동의대 대학원 석사과정 ]
• 남지현 [ Nam, Ji Hyun | 정회원, 동의대 대학원 석사과정 ]
• 오상균 [ Oh, Sang Gyun | 정회원, 동의대 건축공학과 조교수, 공학박사 ]
• 김정길 [ Kim, Jung Kil | 정회원, 동의대 건축공학과 교수, 공학박사 ]

참고문헌