Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/14753
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dc.contributor.authorKastiukas, G-
dc.contributor.authorZhou, X-
dc.date.accessioned2017-06-14T13:34:43Z-
dc.date.available2017-06-14T13:34:43Z-
dc.date.issued2017-
dc.identifier.citationMaterials and Structures, (2017)en_US
dc.identifier.issn1871-6873-
dc.identifier.urihttp://bura.brunel.ac.uk/handle/2438/14753-
dc.description.abstractIncreasingly more research is being directed towards the valorisation of waste materials as precursors for synthesising alkali-activated binders (AABs). For this study, varying blends of tungsten mining waste (TMW) and waste glass (WG) are activated using a combined sodium hydroxide (SH) and sodium silicate (SS) alkali solution. The activating solution itself is also varied with respect to the quantities of SS and SH to determine their effect on reactant formation and mechanical strength of TMW-based AABs. The results show that an increased WG content can effectively provide an additional source of reactive silica, contribute to the formation of (C, N)-A-S-H gel products and thus significantly improve the mechanical strength. High strength TMW-WG AABs were attributed to a faster TMW dissolution rate and dense microstructure. Such structures were characteristic of formulations with low alkali modulus (SiO2/Na2O <2) combined with a SS/SH weight ratio of 2.8. For the latter, not only was a characteristic slower strength development with increasing alkali content observed, but there was also a limit of alkali metal concentration (Na2O∼3.1%) beyond which the strength deteriorated. Furthermore, SEM micrographs disclose that unreacted particles of WG reinforced the matrix by acting as a filler.en_US
dc.description.sponsorshipThis study was funded by the European Commission Horizon 2020 MARIE Skłodowska-CURIE Research and Innovation Staff Exchange Scheme (grant agreement number 645696). Brunel University London and Thomas Gerald Gray Charitable Trust provided a bursary and fees, respectively to support the first author's PhD study.en_US
dc.language.isoenen_US
dc.publisherSpringer Verlagen_US
dc.subjectAlkali-activationen_US
dc.subjectGeopolymeren_US
dc.subjectMicrostructureen_US
dc.subjectRecyclingen_US
dc.subjectTungsten mining wasteen_US
dc.subjectWaste glassen_US
dc.titleEffects of waste glass on alkali-activated tungsten mining waste: Composition and mechanical propertiesen_US
dc.typeArticleen_US
dc.relation.isPartOfMaterials and Structures-
pubs.publication-statusAccepted-
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