摘要
对废石尾砂胶结充填进行了系统的试验研究。阐述了废石尾砂胶结充填工艺的工业性及原理,着重研究了废石尾砂胶结充填体强度的影响因素:水灰比、灰砂比、水泥含量、废石尾砂的粒径级配及配比。研究结果表明,废石尾砂胶结充填体强度随水灰比、灰砂比的减小而增大,随水泥含量的增加而增加。在强度一定的条件下,废石尾砂胶结充填比其他充填方式,单位体积内水泥耗量少,成本低。
Experimental study is systematically conducted on cemented backfilling with waste rocks.The paper states the applicability and mechanism of waste rock cemented filling process and focuses on the influencing factors on the strength of cemented filling body of waste rocks,namely the water-cement ratio,cement-sand ratio,cement content, the grading and proportioning of the particle size of waste rocks.The research results show that the lager the water-ce-ment ratio and cement-sand ratio are,the less the strength of cemented backfilling body becomes,contrary to that rela-tion between cement content and the backfilling body＆#39;s strength.With constant strength,cemented filling with waste rocks consumes less cement per unit volume and cost less than other filling methods.
出处
《黄金》
CAS
2015年第3期40-43,共4页
Gold
基金
国家自然科学基金项目(51164016)
关键词
废石尾砂胶结充填
充填体强度
水灰比
灰砂比
充填集料
cemented filling with waste rock
strength of cemented filling body
water-cement ratio
cement-sand ratio
filling aggregate
