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The experimental study of the coal gangue as gel filling materials

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Journal of Coal Science and Engineering (China)

Abstract

The odd axes resist pressure intensity with large quantity coal gangue was discussed and experimented on fly ash and coal gangue gel filling body between different concentration, proportion and additive dosage. The results show that forepart intensity of new gangue filling body is very low, and anaphase intensity have some increase which still go up after sixty days. The intensity of tao gangue can reach 1.0 MPa in seven days, and anaphase intensity can reach about 2.0 MPa. In the same term, the odd axes resist pressure intensity of gel filling body with tao gangue is higher than new gangue No.1 and No.2. To mix into proper additive dosage which occupied the quality point of cement and fly ash not more than 1.5% can improve the fluidity of slurry body and intensity of filling body.

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Authors and Affiliations

  1. Civil and Environment Engineering School, University of Science and Technology Beijing, Beijing, 100083, China

    Dong-mei Tian  (田冬梅) & Zhong-an Jiang  (蒋仲安)

  2. Safety Engineering College, North China Institute of Science and Technology, Yanjiao, 101601, China

    Jian Yao  (姚 建)

  3. School of Resources & Safety Engineering, Central South University, Changsha, 410083, China

    Xin-min Wang  (王新民) & Qin-li Zhang  (张钦礼)

Authors
  1. Dong-mei Tian  (田冬梅)
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  2. Jian Yao  (姚 建)
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  3. Zhong-an Jiang  (蒋仲安)
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  4. Xin-min Wang  (王新民)
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  5. Qin-li Zhang  (张钦礼)
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Corresponding author

Correspondence to Dong-mei Tian  (田冬梅).

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Tian, Dm., Yao, J., Jiang, Za. et al. The experimental study of the coal gangue as gel filling materials. J Coal Sci Eng China 14, 125–130 (2008). https://doi.org/10.1007/s12404-008-0025-1

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  • DOI: https://doi.org/10.1007/s12404-008-0025-1

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