锗废渣作为水泥掺和料活性激发机理研究

现代矿业 ›› 2014, Vol. 30 ›› Issue (05): 142-146.

锗废渣作为水泥掺和料活性激发机理研究

李辉¹，王贻明²，焦华喆³，刘晓辉²，于少峰²

1.中色非洲矿业有限公司；2.北京科技大学土木与环境工程学院；3.河南理工大学土木工程学院

出版日期:2014-05-15 发布日期:2015-08-13
基金资助:
* 国家自然科学基金项目（编号：50934002）, 国家“十二五”科技支撑计划项目（编号：2012BAB08B02）。

Research on Active Excitation Mechanism of Germanium Slag as Cement Admixture

Li Hui¹，Wang Yiming²，Jiao Huazhe³，Liu Xiaohui²，Yu Shaofeng²

1.Africa Mining Public Limited Company of China Nonferrous Metals Co. Ltd.；2.School of Civil and Environmental Engineering, University of Science & Technology Beijing；3.School of Civil Engineering, Henan Polytechnic University

Online:2014-05-15 Published:2015-08-13

摘要/Abstract

摘要： 锗废渣作为矿产资源开发利用过程中的固体废弃物，长期堆存不仅造成资源浪费，而且严重影响周边环境。对锗废渣的物化性质进行了研究，结果表明，锗废渣可以作为水泥掺和料，Na₂CO₃、AlCl₃·6H₂O、Ca(OH)₂、NaAlO₂均可以作为激发剂，增强试件的抗压强度，其中，NaAlO₂的化学激发效果最佳，NaAlO₂是通过与水化产物Ca(OH)₂反应生成八面体[Al(OH)₆]^2-，与石膏在碱性环境中生成钙矾石，增强试件强度。

关键词: 锗废渣, 激发剂, 水泥掺和料

Abstract: Germanium slag, as the solid wastes in the process of mineral resources exploration and utilization, but the storage of slag for long-term not only causes the waste of resources, but also seriously affects the surrounding environment. The physico-chemical properties of germanium slag was researched, and the germanium can be used as cement admixture. Na₂CO₃, AlCl₃·6H₂O, Ca(OH)₂ as well as NaAlO₂ could be used as activator to enhance the comprehensive strength of samples, NaAlO₂ has the most activition, NaAlO₂ and hydration products Ca(OH)₂ reaction and generated octahedral [Al(OH)₆]^2-, which reaction with gypsum under alkaline environment and ettringite was generated and would enhance the sample strength.

Key words: Germanium slag, Activator, Cement admixture

李辉, 王贻明, 焦华喆, 刘晓辉, 于少峰. 锗废渣作为水泥掺和料活性激发机理研究[J]. 现代矿业, 2014, 30(05): 142-146.

LI Hui, WANG Yi-Ming, JIAO Hua-Zhe, LIU Xiao-Hui, YU Shao-Feng. Research on Active Excitation Mechanism of Germanium Slag as Cement Admixture[J]. Modern Mining, 2014, 30(05): 142-146.

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