Reuse of residual diatomaceous earth for the production of geopolymers - a review

Magalhães, Leandro; Ferreira, Débora; Luso, Eduarda; Lima, Óscar

Publication

Reuse of residual diatomaceous earth for the production of geopolymers - a review

2022Conference paper

dc.contributor.author	Magalhães, Leandro
dc.contributor.author	Ferreira, Débora
dc.contributor.author	Luso, Eduarda
dc.contributor.author	Lima, Óscar
dc.date.accessioned	2023-02-07T11:00:36Z
dc.date.available	2023-02-07T11:00:36Z
dc.date.issued	2022
dc.description.abstract	The high pollution levels produced by the manufacturing of conventional Portland cement have motivated several studies in an attempt to modernize this process with alternative binders such as cements based on use of alkaline activation of aluminosilicates. The reaction between aluminosilicates (such as metakaolin, fly ash and blast furnace slag) and an alkaline solution (sodium hydroxide or potassium hydroxide) triggers a geopolymerization process, developing a material with good mechanical and thermal properties, with a vast spectrum of applications in construction, helping in the reduction of the environmental impact and due to it, lower carbon footprint. Most geopolymer concrete was focused on fly ashes, metakaolin and blast furnace slag, this paper focuses on use of residual diatomaceous earth in the manufacture of geopolymer concrete, which are very rich in aluminosilicates. This review paper presents an extensive bibliographic review of studies related to the manufacture of geopolymer cements based on diatomaceous earth. The chemical composition of diatomaceous earth, density, surface area, absorption capacity, different drying methods and different calcination processes are investigated factors. Mortar blends based on diatomaceous earth, temperatures and curing times, physical and mechanical properties of the obtained samples are also subject to analysis.	pt_PT
dc.description.version	info:eu-repo/semantics/publishedVersion	pt_PT
dc.identifier.citation	Magalhães, Leandro; Ferreira, Débora; Luso, Eduarda; Lima, Óscar (2022). Reuse of residual diatomaceous earth for the production of geopolymers - a review. In 9th Euro-American Congress on Construction Pathology, Rehabilitation Technology and Heritage Management Rehabend 2022. University of Granada (Spain)2	pt_PT
dc.identifier.issn	978-84-09-42253-1
dc.identifier.uri	http://hdl.handle.net/10198/26761
dc.language.iso	eng	pt_PT
dc.peerreviewed	yes	pt_PT
dc.publisher	UNIVERSITY OF CANTABRIA	pt_PT
dc.relation	(POCI-01-0247-FEDER-069583), financed by “Fundo Europeu de Desenvolvimento Regional (FEDER)	pt_PT
dc.rights.uri	http://creativecommons.org/licenses/by/4.0/	pt_PT
dc.subject	Geopolymerization	pt_PT
dc.subject	Residue valorisation	pt_PT
dc.subject	Residual diatomaceous earth	pt_PT
dc.title	Reuse of residual diatomaceous earth for the production of geopolymers - a review	pt_PT
dc.type	conference paper
dspace.entity.type	Publication
oaire.citation.conferencePlace	University of Granada (Spain)	pt_PT
oaire.citation.title	9th Euro-American Congress on Construction Pathology, Rehabilitation Technology and Heritage Management Rehabend 2022	pt_PT
person.familyName	Magalhães
person.familyName	Ferreira
person.familyName	Luso
person.givenName	Leandro
person.givenName	Débora
person.givenName	Eduarda
person.identifier.ciencia-id	571C-5641-9D78
person.identifier.ciencia-id	D81C-FDAD-4D8A
person.identifier.ciencia-id	2A1D-4B9F-9935
person.identifier.orcid	0000-0002-1256-9689
person.identifier.orcid	0000-0002-5195-8265
person.identifier.orcid	0000-0001-7979-1308
person.identifier.rid	I-2627-2018
person.identifier.scopus-author-id	35334023200
rcaap.rights	openAccess	pt_PT
rcaap.type	conferenceObject	pt_PT
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