Initial Strength Characteristics of Cement Paste Added with Nitric Acid Neutralized Red Mud

질산 중화 레드머드를 첨가한 시멘트 페이스트의 초기강도 특성

  • Published : 2021.05.20

Abstract

An increasing amount of red mud (RM) is being generated globally with the growth in alumi-num production. To avoid the RM becoming a pollutant, methods for effectively recycling RM at a low cost are being investigated. This study proposes a method for recycling RM as a construc-tion material. The cement paste with neutralized liquefied red mud had higher compressive strength than that of plain cement paste and cement paste with liquefied red mud without neutralization at 1 d of aging; this indicates that nitric acid neu-tralization increases the early-age strength.

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Acknowledgement

이 논문은 2019년 정부(환경부)의 재원으로 한국환경산업기술원의 지원을 받아 수행되었습니다.(과제번호 2019002750002)