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Minerals, Volume 13, Issue 2
February 2023 - 168 articles
Cover Story: Spodumene production generates a high volume of industrial by-products such as spodumene tailings, which occupied a lot of land for storage. This study focuses on using tailings to prepare phosphoric acid-activated metakaolin geopolymer. The compressive strength of geopolymer mortar was significantly improved with SFT as aggregates. In addition, the mechanical properties could also be enhanced by an increased concentration of phosphoric acid (H3PO4) solution or a decreased aggregate particle size. On the other hand, the properties of the geopolymer mortar could also be affected by the morphology of the aggregates. The major chemical structural units of geopolymer mortar were -P-O-Al- and AlPO4, which could be spontaneously generated according to the thermodynamic calculation results. View this paper
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Minerals - ISSN 2075-163XCreative Common CC BY license