北京科技大学学报2012，Vol.34Issue(7)：738-743,6.
矿渣胶凝材料固结尾砂的微观实验
Microscopic experiment of consolidating tailings by slag cementing materials
摘要
Abstract
The hydration products and microstrncture of slag cementing materials were characterized and the influence of slag cementing materials on the consolidation of tailings was investigated by using X-ray diffraction analysis, scanning electron microscopy and thermogravimetry-differential scanning calorimetry analysis. Microscopic experimental results indicate that the main hydration prod- ucts of slag cementing materials are calcium silicate hydrate gel （C--S--H）, ettringite （AFt）, a small amount of partheite （Ca2A14Si4O15 （OH）2.4H20） and zeolite minerals. It is found that the crystal structure recombines and rearranges in the hydration process with the increase of curing time. Cristobalite, mica and carbonate minerals （ calcite, dolomite, etc. ） are active components in the tailing consolidation process, which can generate new crystal and gelatinous minerals. This is the main reason for the difference of consolidation microstrueture.关键词
矿渣水泥/尾砂/固结/水化物/微观结构Key words
slag cement/tailings/consolidation/hydrates/microstrueture分类
矿业与冶金引用本文复制引用
张发文,杨建涛,刘文霞,沈连峰..矿渣胶凝材料固结尾砂的微观实验[J].北京科技大学学报,2012,34(7):738-743,6.基金项目
国家自然科学基金资助项目 （）
