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Gold Science and Technology ›› 2016, Vol. 24 ›› Issue (5): 13-18.doi: 10.11872/j.issn.1005-2518.2016.05.013

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Experiment Research on Slurry Setting Time’s Effect on High-sulphur Backfill’s Compressive Strength

LAN Zhipeng，WANG Xinmin，WANG Hongjiang，CHEN Qiusong   

  1. School of Resources and Safety Engineering，Central South University，Changsha    410083，Hunan，China
  • Received:2015-12-30 Revised:2016-02-18 Online:2016-10-28 Published:2016-12-27

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Abstract:

To explore the relationship between slurry setting time and compressive strength of high-sulphur backfill，an laboratory experiment was carried out，on the basis of tailing’s sulfur content is 25%.The experimental data was analyzed by Origin mathematical software，and the internal microstructure of high-sulphur backfill was observed through SEM.The change law of high-sulphur’s compressive strength in the different condition of slurry setting time was studied.The results show that there is a function relationship between the slurry setting time with different age’s compressive strength of high-sulphur，which bases on the reasonable range of setting time.When the setting time shortened by 15.49%，the early strength increased by 136.17%，but the long-term strength decreased by 19.63%.On the contrary，when the setting time extended by 9.8%，the long-term strength increased by 40.48%，and the long-term strength’s growth pattern was similar to index type.The essence of reducing lost of high-sulphur’s long-term strength is to ensure the uniformity of the microstructure.The research results of this paper can provide reference for high-sulphur mine’s filling work.

Key words: high-sulphur tailings, additives, setting time, compressive strength

CLC Number: 

  • TD853 

［1］  韩鹏，牛桂芝.中国硫矿主要矿集区及其资源潜力探讨［J］.化工矿产地质，2010，32（2）：95-104.
［2］ 翟永刚，吴爱祥，王洪江，等.全尾砂膏体充填临界质量分数［J］.北京科技大学学报，2011，33（7）：795-799.
［3］ 刘同有.充填采矿技术与应用［M］.北京：冶金工业出版社，2001.
［4］ 王新民，胡一波，王石，等.超细全尾砂充填配比优化正交试验研究［J］.黄金科学技术，2015，23（3）：45-49.
［5］ 刘殿华，吴贤振.全尾砂充填技术的应用与发展［J］.世界有色金属，2012（8）：44-45.
［6］ 蔡嗣经.充填采矿技术的应用现状及发展方向［J］.国外金属矿山，1998（6）：25-32.
［7］ 徐静，杨晓军，徐修平，等.新型固化剂对铜矿全尾砂充填体抗压强度的影响［J］.金属矿山，2016（8）：190-193.
［8］ 刘允秋，侯大德.含硫尾砂充填体强度试验［J］.现代矿业，2013（11）：195-196.
［9］ 王怀勇，张爱民，贺茂坤.高硫极细全尾砂充填料配比及输送特性试验研究［J］.中国矿山工程，2014，43（6）：1-4.
［10］ 王宝，张虎元，董兴玲，等.硫化物氧化对充填体长期强度的影响［J］.化工矿物与加工，2007（10）：29-31.
［11］ 张钦礼，王新民，田明华.硫化物对充填体强度的影响［J］.矿业研究与开发，2004，24（增）：168-169.
［12］ 许毓海.尾砂中硫化物对充填体质量影响研究［J］.矿业研究与开发，2009，29（5）：4-6.
［13］ Ayora C，Chinchon S，Aguado A，et al.Weathering of iron sulfides and concrete alteration：Thermodynamic model and observation in dams from Central Pyrenees，Spain［J］.Cement and Concrete Research，1998，28（4）：591-603.
［14］ Kesimal A，Yilmaz E，Ercikdi B.Evaluation of paste backfill mixtures consisting of sulphide-rich mill tailings and varying cement contents［J］.Cement and Concrete Research，2004，34（10）：1817-1822.
［15］ 张钦礼，康虔，肖富国，等.含硫高粘性尾矿胶结充填关键技术［J］.金属矿山，2010（11）：39-42，67.
［16］ 张钦礼，王新民，古德生，等.新桥硫铁矿粉煤灰充填技术研究［C］//第八届国际充填采矿会议论文集.北京：中国有色金属学会，2004.
［17］ 刘海霞.高性能混凝土性能研究及工程应用［D］.济南：山东大学，2010.
［18］ 肖丽，王新海，盛兴跃.缓凝剂对水泥混凝土性能影响的试验研究［J］.公路交通技术，2007（2）：25-28.
［19］ 张述雄，王栋民，张力冉，等.一种新型无碱液态速凝剂的研究［J］.硅酸盐通报，2014，33（11）：2946-2951.
［20］ 周妍，许文龙，黎学润，等.柠檬酸对阿利特—硫铝酸盐水泥凝结时间及水化过程的影响［J］.混凝土，2014（12）：76-79.
［21］ 中国国家质量监督检验检疫总局.水泥标准稠度用水量、凝结时间，安定性检验方法：GB/1346-2011［S］.北京：中国标准出版社，2011.
［22］ 潘志华，程建坤.水泥速凝剂研究现状及发展方向［J］.建井技术，2005（2）：22-27.
［23］ 徐群.非线性回归分析的方法研究［D］. 合肥：合肥工业大学，2009.
［24］ Benzaazoua M，Belem T，Bussiere B.Chemical factors that influence the performance of mine sulphidic paste backfill［J］.Cement and Concrete Research，2002，32（7）：1133-1144.
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