메뉴 건너뛰기
.. 내서재 .. 알림
소속 기관/학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
로그인 회원가입 고객센터 ENG
주제분류

추천
검색
질문

논문 기본 정보

자료유형
학술저널
저자정보
저널정보
대한건축학회 대한건축학회 논문집 - 구조계 대한건축학회논문집 - 구조계 제21권 제5호
발행연도
2005.5
수록면
105 - 112 (8page)

이용수

표지
📌
연구주제
📖
연구배경
🔬
연구방법
🏆
연구결과
AI에게 요청하기
추천
검색
질문

초록· 키워드

오류제보하기
In this paper, the applicability of maturity approach to setting time of concrete using super retarding agent(SRA) is discussed under various SRA content and curing temperature. An increase in dosage of SRA and a decrease in curing temperature resulted in retarding the setting time of concrete significantly. Arrhenius function to obtain apparent activation energy(Ea) and Freisleben-Hansen maturity function to achieve the equivalent age were applied in this paper. To obtain apparent activation energy during setting time, modification of Arrhenius function prescribed by ASTM C 1074 was done by substituting ln(kT) for ln(1/t) for Y axis. Apparent activation energy derived from Arrhenius function ranged from 30~35KJ/mol for plain concrete, which was similar to that suggested by Freisleben-Hansen and it also ranged from 20~40KJ/mol for concrete with SRA. Equivalent age was calculated by using Freisleben-Hansen function, which exhibited nearly independence of curing temperature, regradless of with and without SRA. Initial and final setting time of concrete was obtained from the equivalent age calculated with Freisleben-Hansen maturity function for each mixture. Effective quality control method related to the prediction of setting time of concrete using SRA were provided. It was found that Ea during setting period could be successfully estimated by setting time, and maturity function could be used to predict the setting time of concrete with SRA under various curing temperature condition.

목차

Abstract

1. 서 론

2. 이론적 고찰

3. 실험계획 및 방법

5. 결론

참고문헌

참고문헌 (0)

참고문헌 신청

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!

이 논문의 저자 정보

최근 본 자료

전체보기

댓글(0)

0

UCI(KEPA) : I410-ECN-0101-2009-540-014581199