Properties of Slag Cement Mortar with Liquid Red Mud Neutralized with Sulfuric Acid

황산으로 중화시킨 액상레드머드 첨가 슬래그시멘트 모르타르의 특성

  • Published : 2022.11.10

Abstract

In this paper, the characteristics of slag cement mortar added with neutralized liquid red mud with sulfuric acid and reduced pH were reviewed to improve the strength degradation of cement concrete added with liquid red mud. As a result, in the case of compressive strength up to 7 days, the strength of the cement mortar added with liquid red mud tends to increase compared to Plain. This shows that adding liquid red mud to cement mortar tends to increase the initial age strength, and the compressive strength on the 28th shows 74% of Plain when adding non-neutralized liquid red mud and 89% when adding sulfate neutralized red mud. Therefore, it is judged that the compression strength is improved by neutralizing the liquid red mud with sulfuric acid.

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Acknowledgement

본 논문은 2022년 중소기업기술정보진흥원 중소벤처기업부의 구매조건부신제품개발사업(과제번호: S3303468)의 일환으로 수행된 연구임을 밝히며 이에 감사를 드립니다.