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DC Field | Value | Language |
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dc.contributor.author | Maldonado Alameda, Alex | - |
dc.contributor.author | Mañosa Bover, Jofre | - |
dc.contributor.author | Giró Paloma, Jessica | - |
dc.contributor.author | Formosa Mitjans, Joan | - |
dc.contributor.author | Chimenos Ribera, Josep Ma. | - |
dc.date.accessioned | 2021-04-26T16:09:06Z | - |
dc.date.available | 2021-04-26T16:09:06Z | - |
dc.date.issued | 2021-04-23 | - |
dc.identifier.issn | 2076-3417 | - |
dc.identifier.uri | http://hdl.handle.net/2445/176746 | - |
dc.description.abstract | Alkali-activated binders (AABs) stand out as a promising alternative to replace ordinary Portland cement (OPC) due to the possibility of using by-products and wastes in their manufacturing. This paper assessed the potential of weathered bottom ash (WBA) from waste-to-energy plants and PAVAL® (PV), a secondary aluminium recycling process by-product, as precursors of AABs. WBA and PV were mixed at weight ratios of 98/2, 95/5, and 90/10. A mixture of waterglass (WG) and NaOH at different concentrations (4 and 6 M) was used as the alkaline activator solution. The effects of increasing NaOH concentration and PV content were evaluated. Alkali-activated WBA/PV (AA-WBA/PV) binders were obtained. Selective chemical extractions and physicochemical characterization revealed the formation of C-S-H, C-A-S-H, and (N,C)-A-S-H gels. Increasing the NaOH concentration and PV content increased porosity and reduced compressive strength (25.63 to 12.07 MPa). The leaching potential of As and Sb from AA-WBA/PV exceeded the threshold for acceptance in landfills for non-hazardous waste. | - |
dc.format.extent | 15 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | MDPI | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.3390/app11093840 | - |
dc.relation.ispartof | Applied Sciences, 2021, vol. 11, num. 9, p. 1-15 | - |
dc.relation.uri | https://doi.org/10.3390/app11093840 | - |
dc.rights | cc-by (c) Maldonado Alameda, Alex et al., 2021 | - |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es | - |
dc.source | Articles publicats en revistes (Ciència dels Materials i Química Física) | - |
dc.subject.classification | Recuperació de residus | - |
dc.subject.classification | Materials de construcció | - |
dc.subject.classification | Alumini | - |
dc.subject.other | Recovery of waste products | - |
dc.subject.other | Building materials | - |
dc.subject.other | Aluminum | - |
dc.title | Alkali-activated binders using bottom ash from waste-to-energy plants and aluminium recycling waste | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 711900 | - |
dc.date.updated | 2021-04-26T16:09:06Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Ciència dels Materials i Química Física) |
Files in This Item:
File | Description | Size | Format | |
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711900.pdf | 9.11 MB | Adobe PDF | View/Open |
This item is licensed under a Creative Commons License