Utilization of high carbon fly ash and coal gangue in blended cement: a case study

摘要：

The purpose of this work is to present an effective alternative to combined use of high carbon fly ash (HCFA) and coal gangue. HCFA, coal gangue, together with some additives and water, were mixed, dried, and clacinated at 700℃～900℃ to produce a cement admixture (FGA),which is used to produce environment friendly cementing material by mixing and cogrinding with granulated blast-furnace slag (GBFS) and alkali activator. The optimized formulation of the cementing material for Strength Grade 42.5 (GB12958—1999) was obtained with the aid of orthogonal array technique: FGA-47％, GBFS-47％, activator-6％. The hydration products, studied by SEM and XRD, are mainly ettringite and C-S-H (I).

关键词： Waste reuse Fly ash coal gangue slag cementing material

作者: Zhao Feng-qing Guo Bin Liu Hong-jie Liu Jun-qin

作者单位: Chemical Technology Dept Hebei University of Science and Technology Shijiazhuang,PRC Quality Testing Center He Bei Tobacco Company Shijiazhuang,PRC

会议类型: 国际会议

会议名称: The 3rd International Conference on Bioinformatics and Biomedical Engineering(iCBBE 2009)(第三届生物信息与生物医学工程国际会议)

会议地点: 北京

会议语种:英文

页码: 1-4

在线出版日期: 2009-06-11（万方平台首次上网日期，不代表论文的发表时间）