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A Study on Sodium Sulfate Activited the Hydration Properties of Fly Ash-cement Paste황산염나트륨 자극제를 사용한 플라이 애쉬 혼입 시멘트 페이스트의 초기 수화 특성에 관한 기초적 연구
- Other Titles
- 황산염나트륨 자극제를 사용한 플라이 애쉬 혼입 시멘트 페이스트의 초기 수화 특성에 관한 기초적 연구
- Issue Date
- May-2021
- Publisher
- 한국건축시공학회
- Keywords
- 플라이 애쉬; 시멘트 페이스트; 화학 작용; 황산나트륨; fly ash; cement paste; chemical activation; sodium sulfate
- Citation
- 한국건축시공학회 학술발표대회 논문집, v.22, no.1, pp 129 - 130
- Pages
- 2
- Indexed
- OTHER
- Journal Title
- 한국건축시공학회 학술발표대회 논문집
- Volume
- 22
- Number
- 1
- Start Page
- 129
- End Page
- 130
- Abstract
- In order to solve the problem of low early-age compressive strength of high volume fly ash concrete. This paper studies the effect of 2% sodium sulfate (Na₂SO₄) as a chemical activator on the paste with 40% fly ash content and a water-binder ratio of 0.30. The results indicate that the addition of Na₂SO₄ can effectively improve the early-age compressive strength of the fly ash-cement system, and the strength improvement rate on the first day reached nearly 70%. In addition, calorimetric analysis reveals that the incorporation of Na₂SO₄ promotes the early hydration of cement and fly ash, increases the cumulative hydration heat and delays the heat peak of the aluminum phase.
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Related Researcher
- Lee, Han Seung
- ERICA 공학대학 (MAJOR IN ARCHITECTURAL ENGINEERING)