全尾砂膏体料浆流动性影响因素的试验研究  

Experimental Research on Influencing Factors for the Flowability of Total Tailings Paste Backfill Slurry

作　　者：郑娟荣[1] 吕杉杉[1] 赵振波[1] 

机构地区：[1]郑州大学土木工程学院

出　　处：《金属矿山》2013年第9期37-40,共4页Metal Mine

基　　金：国家自然科学基金项目(编号:51274174)

摘　　要：采用电动跳桌仪对全尾砂膏体料浆流动性的影响因素进行了试验研究。结果表明:料浆浓度、细尾砂(-20μm)掺量、超塑化剂掺量和粉煤灰品质及掺量均对全尾砂膏体料浆的流动性有显著影响;细尾砂对全尾砂膏体料浆流动性的影响在未掺和掺超塑化剂条件下有显著差异;在保持料浆流动性相同的条件下,掺适量超塑化剂可以提高料浆浓度4个百分点,或者提高细尾砂含量20个百分点。An experimental study on influencing factors of the flowability of total tailings paste backfll slurry was car- ried out. The test results showed the solid concentration of slurry ,the contention of fine （ -20 μm） tailings particle ,super- plasticizer contention and the type and contention of fly-ash all obviously influenced the flowability of total tailings paste backfill slurry. The influence of fine tailing contention on the flowability of total tailings paste backfill slurry without and with superplasticizer was obviously different. 4% solid concentration of the slurry and 20% fine tailings panicle contention could be increased with superplasticizer in the slurry and unchanging flowability of the slurry.

关 键 词：全尾砂膏体料浆 流动性 电动跳桌仪 超塑化剂 -20μm细尾砂 

分 类 号：TU528.042[建筑科学—建筑技术科学]