석회석 5% 대체 비탄산염 원료 적용 저열시멘트 제조에 관한 연구

• 영문명: A Study on the Production of Low-heat Cement Using Non-carbonate Raw Materials with 5% Substitution of Limestone
• 발행기관: 한국세라믹학회
• 저자명: 박윤미(Yun Mi Park) 신홍철(Hong Cheol Shin) 손영준(Young Jun Son) 임채용(Chae Yong Lim)
• 간행물 정보: 『세라미스트』제26권 제4호, 450~458쪽, 전체 9쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2023.12.31

영문 초록

This study aims to produce low heat cement by substituting limestone, the main raw material of cement, with non-carbonate raw material s for 2050 carbon neutrali ty. The use of non-carbonate raw materials can reduce CO2 generated by the calcination of limestone and reduce the amount of energy required for the calcination. The non-carbonate materials reviewed in this study are BOF slag, KR slag, and blast furnace slag with a CaO content of more than 40%. Compared to limestone, non-carbonate materials have lower grindability and higher Fe2O3 and Al2O3 content, which limits their ability to substitute limestone. By applying the chemical composition of non-carbonate raw materials and applying a low heat cement modulus to calculate the clinker raw material mixture, it was possible to calculate a raw material mixture that substitutes 5% limestone. The raw materials were mixed in the laboratory, fired to produce clinker, and mixed grinding of the fired clinker and gypsum to produce low-heat cement. The chemical and physical properties of the cement produced using the non-carbonate raw materials were evaluated and found to meet the KS standard. In the future, the use of non-carbonate raw materials to substitute limestone is expected to contribute significantly to the reduction of CO2 emissions in the cement industry.

목차

1. 서론

2. 사용 재료 및 클링커 원료 배합 산출

3. 소성성 및 화학·물리 특성

4. 결론

ACKNOWLEDGEMENTS

REFERENCES

키워드

Clinker Reduction of CO2 emissions Substitution of limestone