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dc.contributor.authorHuang, Bo
dc.contributor.authorFeng, Qingming
dc.contributor.authorAn, Dongbo
dc.contributor.authorZhang, Jinhong
dc.date.accessioned2020-03-19T00:50:15Z
dc.date.available2020-03-19T00:50:15Z
dc.date.issued2019-12-11
dc.identifier.citationHuang, B., Feng, Q., An, D. et al. Use of Mine Tailings as Precast Construction Materials through Alkali Activation. Mining, Metallurgy & Exploration 37, 251–265 (2020). https://doi.org/10.1007/s42461-019-00149-wen_US
dc.identifier.issn2524-3462
dc.identifier.doi10.1007/s42461-019-00149-w
dc.identifier.urihttp://hdl.handle.net/10150/637743
dc.description.abstractA study of the application of mine tailings as precast construction materials through alkali activation has been carried out, focusing on efficiently activating mine tailings, reducing alkali consumption, decreasing curing time and improving compressive strength. Firstly, the effect of temperature on the alkali activation of mine tailings was studied. Secondly, the impact of additives, i.e., calcium hydroxide and aluminum oxide, on the compressive strength of samples was investigated. Thirdly, the impact of forming pressure on sample strength was studied. Test results showed that unconfined compressive strength (UCS) of 40 MPa was achieved with the geopolymerization products through optimization. Finally, to elucidate the geopolymerization mechanism of mine tailings, microscopic and spectroscopic techniques including SEM/EDX, XRD, and FTIR spectroscopy were used to investigate the microstructure and the elemental and phase composition of the geopolymerization products. The findings of the present work provide a practical method for applying mine tailings as precast construction materials through alkali activation.en_US
dc.language.isoenen_US
dc.publisherSPRINGER HEIDELBERGen_US
dc.rights© Society for Mining, Metallurgy & Exploration Inc. 2019en_US
dc.rights.urihttp://www.springer.com/tdmen_US
dc.subjectMine tailingsen_US
dc.subjectAlkali activationen_US
dc.subjectGeopolymerizationen_US
dc.subjectCompressive strengthen_US
dc.subjectDurabilityen_US
dc.titleUse of Mine Tailings as Precast Construction Materials through Alkali Activationen_US
dc.typeArticleen_US
dc.contributor.departmentUniv Arizona, Dept Min & Geol Engnen_US
dc.identifier.journalMINING METALLURGY & EXPLORATIONen_US
dc.description.note12 month embargo; published online: 11 December 2019en_US
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en_US
dc.eprint.versionFinal accepted manuscripten_US
dc.identifier.pii149
dc.source.journaltitleMining, Metallurgy & Exploration
dc.source.volume37
dc.source.issue1
dc.source.beginpage251
dc.source.endpage265


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