无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2019, Vol. 51 ›› Issue (5): 66-69.

• 环境·健康·安全 • 上一篇    下一篇

电解锰渣对热焖钢渣活性的硫酸盐激发

周宏研1,2,陈平1,2,3,4(),赵艳荣1,2,3,4,刘荣进1,2,3,4,韦家崭1,2,3,4   

  1. 1. 桂林理工大学材料科学与工程学院,广西桂林 541004
    2. 广西有色金属及特色材料加工重点实验室
    3. 桂林理工大学,广西有色金属隐伏矿床勘查及材料开发协同创新中心
    4. 广西建筑新能源与节能重点实验室
  • 收稿日期:2018-11-23 出版日期:2019-05-10 发布日期:2020-04-28
  • 作者简介:周宏研(1994— ),女,硕士研究生;E-mail:17577286061@163.com。
  • 基金资助:
    国家自然基金地区基金(21566008);广西科技重大专项子课题桂科(AA17204066-3);广西重点研发计划桂科(AB17129014)

Sulfate activation of electrolytic manganese residue on heat-stewed steel slag activity

Zhou Hongyan1,2,Chen Ping1,2,3,4(),Zhao Yanrong1,2,3,4,Liu Rongjin1,2,3,4,Wei Jiazhan1,2,3,4   

  1. 1. College of Materials Science and Engineering,Guilin University of Technology,Guilin,541004,China
    2. Guangxi Key Laboratory of Processing for Non-ferrous Metal and Featured Materials
    3. Guangxi Collaborative Innovation Center for Prospecting and Material Development of Non-ferrous Metal Concealed Deposits,Guilin University of Technology
    4. Guangxi Key Laboratory of New Energy and Energy Conservation
  • Received:2018-11-23 Published:2019-05-10 Online:2020-04-28

摘要:

选用电解锰渣和水泥熟料作为激发剂,重点研究电解锰渣掺加量对热焖钢渣活性激发的影响,并通过XRD、SEM分析了电解锰渣对水化产物及水泥石微观结构的作用。结果表明:掺加量为12%(质量分数)的电解锰渣对熟料-热焖钢渣体系具有较好的硫酸盐激发效果,加快了钢渣的水化速率,大幅度提高了钢渣胶凝材料的早期强度和后期强度;电解锰渣的掺入对水化产物种类影响不大;与未掺入激发剂组相比,经激发后钢渣胶凝材料浆体中主要以絮状的C—S—H凝胶为主,同时还存在少量的AFt晶体,各水化产物具有良好的匹配,形成致密的结构,从而使整个体系获得较高的强度。

关键词: 电解锰渣, 热焖钢渣, 硫酸盐激发, 水化产物

Abstract:

Electrolytic manganese residue and cement clinker were selected as stimulating agents and the influence of the amount of electrolytic manganese residue on the activation of hot-stewed steel slag was mainly studied,and the effect of electrolytic manganese residue on the microstructure of hydration products and cement stone were analyzed by XRD and SEM. The result showed that when the content of electrolytic manganese slag was 12%(mass fraction),the effect of sulfate stimulation on clinker heat-stewed slag system was better,it accelerated the hydration rate of steel slag and greatly improved the early strength and late strength of steel slag cementitious materials.However,it had little effect on the type of hydration products; compared with unincorporated activator group,the flocculation of the steel slag cementitious material after excited mainly consisted of flocculent C—S—H gel and a small amount of AFt crystal,each hydration product had a good match and forming a dense structure,so that the entire system obtained higher strength.

Key words: electrolytic manganese residue, heat-stewed steel slag, sulfate activation, hydration product

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