| 某矿全尾废石混合处置体性能研究 |
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| 引用本文： | 李涛,王洪江,吴爱祥,孙伟.某矿全尾废石混合处置体性能研究[J].金属矿山,2012,41(12):123-126. |
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| 作者姓名： | 李涛 王洪江 吴爱祥 孙伟 |
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| 作者单位： | 北京科技大学土木与环境工程学院 |
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| 基金项目： | 国家自然科学基金重点项目，教育部长江学者和创新团队发展计划项目，国家自然科学基金项目，"十二五"国家科技支撑计划项目 |
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| 摘 要： | 通过单轴压缩、凝结时间及塌落度试验，研究了某矿全尾废石混合处置体的性能与灰砂比及料浆浓度之间的关系规律。试验结果表明：混合处置体抗压强度主要与灰砂比相关，与料浆浓度关系不大，而凝结时间、塌落度及扩散度主要与料浆浓度相关，与灰砂比几乎没有关系;混合处置体的28 d抗压强度应介于1.0～2.0 MPa,灰砂比应小于1∶12，质量浓度应取81%～83%。
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| 关 键 词： | 全尾砂 混合处置体 灰砂比 料浆浓度 |
Study on Properties of Mixed Disposal Paste with Unclassified Tailings and Waste Rock in a Mine |
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| Li Tao,Wang Hongjiang,Wu Aixiang,Sun Wei.Study on Properties of Mixed Disposal Paste with Unclassified Tailings and Waste Rock in a Mine[J].Metal Mine,2012,41(12):123-126. |
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| Authors: | Li Tao Wang Hongjiang Wu Aixiang Sun Wei |
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| Affiliation: | School of Civil and Environmental Engineering，University of Science and Technology Beijing; |
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| Abstract: | This paper conducts tests of uniaxial compression，setting time and collapsed slump with mixed disposal paste and expatiates on the relationship of mixed disposal paste properties with cement-sand ratio and concentration of solution.The test results show compressive strength of mixed disposal paste is mainly related to cement-sand ratio and has little relation with concentration of solution.Setting time，collapsed slump and diffusion degree are main related to concentration of solution and have little relation with cement-sand ratio.Compressive strength of mixed disposal paste in the 28 d should be between 1.0 and 2.0 MPa，cement-sand ratio should be less than 1∶12 and concentration should be between 81% and 83%. |
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| Keywords: | Unclassified tailings Mixed disposal paste Cement-sand ratio Concentration of solution |
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