SNU CBE

Investigation of the effect of diethanol isopropanolamine on ferrite phase

2023 · Journal of Sustainable Cement-Based Materials

저자

Hyunuk Kang, Sung‐Jin Jung, Junhyeok Jung, 박정원 (Jungwon Park), Junboum Park, Juhyuk Moon

연구주제

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NTIS 과학기술표준분류

가장 가까운 분류(에너지/자원 > 온실가스 처리 > CO2 전환기술)가 화학·화공 범위 밖이다. 배정 근거: 논문을 지원한 과제의 분류.

AI 연구 키워드·방법

cement ferrite phase grinding aid

키워드 (OpenAlex)

C4AF ferrite phase grinding aids iron oxidation state iron(III) hydration sustainable cement

초록

Although it is one of main cement phases, the reactivity of tetracalcium aluminoferrite (C4AF) has not been fully understood especially under the use of grinding agent. In this study, the crystallographic variations due to the use of diethanol isopropanolamine (DEIPA) and resulting hydration characteristics of iron-rich C4A0.6F1.4 (f-C4AF) and idealized C4A0.8F1.2 (i-C4AF) were investigated. Substantially enhanced reactivity of f-C4AF was confirmed due to the state variation of Fe atom in C4AF from Fe2+ to Fe3+ which facilitates the formation of Fe-bearing phases of C3FH6, Fe-AFm and FH3. Meanwhile, the degree of hydration of i-C4AF had not been substantially improved but showed similar reaction only with a large amount of DEIPA (from 0.1% to 0.3%). It was experimentally validated that the reactivity of C4AF is controllable with the use of DEIPA which can lead to develop sustainable ceme…

이 논문을 지원한 국가R&D 과제 (NTIS 성과)

연도과제부처사업수행기관NTIS 분류(1순위)
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2023인프라스피어 교육연구단교육부4단계두뇌한국21사업서울대학–
2023시멘트 산업 발생 CO2 활용 in-situ 탄산화 기술 개발산업통상자원부에너지수요관리핵심기술개발(에특)유진기업(주)범위 밖

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