锗废渣掺量对水泥及膏体水化凝结的影响规律  

Hydraulic condensing rules for cement and paste mixed with different proportions of germanium waste

作　　者：王洪江[1] 李辉[1] 吴爱祥[1] 焦华喆[1] 肖云涛[1] 严庆文 

机构地区：[1]北京科技大学土木与环境工程学院,北京100083 [2]云南驰宏锌锗股份有限公司,云南曲靖655011

出　　处：《中南大学学报（自然科学版）》2013年第2期743-748,共6页Journal of Central South University:Science and Technology

基　　金：国家自然科学基金重点资助项目(50934002);长江学者和创新团队发展计划项目(IRT0950)

摘　　要：研究锗废渣掺入水泥及膏体后对其水化凝结规律的影响。将锗废渣以不同比例掺入水泥,经研究发现锗废渣不同掺量可以对水泥水化凝结起到调节作用。在此基础上,将尾砂和锗废渣以不同比例配制成膏体,发现锗废渣对膏体凝结起到了促凝的作用,而且掺量越大,效果越明显。经分析认为,锗废渣的掺入使水化反应生成更多的钙矾石,从而降低尾砂中Zn2+对膏体的缓凝作用。这为进一步研究将锗废渣掺入膏体调节膏体凝结时间提供理论依据。The hydraulic condensing rules after the cement and paste mixed with germanium waste were studied. Firstly different proportions of germanium waste mixed with cement were used, then it was found that different proportions of germanium waste can be regulatory role on hydraulic condensation. On the basis of the current industrial parameters, according to the different proportions of tailings and germanium waste made into paste, it is found that the germanium waste plays a promoting function of condensation, and the greater the mixed quantity, the greater the effect is. Experiment shows that with the germanium adding to paste with more ettringite to generate Zn2＋ is reduced within tailing to paste of the slow effect. This provides the theory basis adjust setting time for paste which is mixed with germanium waste.

关 键 词：锗废渣 缓凝 促凝 水化凝结规律 

分 类 号：TQ172.9[化学工程—水泥工业]