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Applicability Evaluation of Tailing Admixture as Grout Material
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  • Journal title : Tunnel and Underground Space
  • Volume 26, Issue 2,  2016, pp.110-119
  • Publisher : Korean Society for Rock Mechanics
  • DOI : 10.7474/TUS.2016.26.2.110
 Title & Authors
Applicability Evaluation of Tailing Admixture as Grout Material
Kim, Daehyeon; Noh, Jeongdu; Kang, Seong-Seung;
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 Abstract
The purpose of this study is to evaluate the applicability of tailing in the mine as a grout material. For the purpose, XRD analysis was performed for mineralogical properties of tailing. In addition, flow, velocity, and uniaxial compressive strength tests were carried out for physical and mechanical properties of a grout material with the mixing ratio of cement and tailing and curing periods. By the result of XRD analysis, tailing of the mine was found to mostly consist of quartz, galena, and pyrite. The flow observed by the flow test showed decreasing tendency with increasing the mixing ratio of tailing. The velocity was also lowered with increasing the mixing ratio of tailing regardless of curing periods. The uniaxial compressive strength as well as Young's modulus also show a tendency to decrease with increasing the mixing ratio of tailing independently on the curing periods. Considering only the physical and mechanical properties of a grout material with tailing, the results are considered to be sufficiently used as a grout material. However, since metallic minerals such as galena and pyrite in tailing contents and these are causing environmental contamination, countermeasures should be considered for this problem in future.
 Keywords
Tailing;Grout material;Physical and mechanical properties;Curing period;Environmental contamination;
 Language
Korean
 Cited by
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