Testing Geopolymer Concrete Performance in Chloride Environment

Nguyen, QD; De Carvalho Gomes, S; Alnahhal, MF; Li, W; Kim, T; Castel, A

Testing Geopolymer Concrete Performance in Chloride Environment

Nguyen, QD De Carvalho Gomes, S Alnahhal, MF Li, W

Kim, T Castel, A

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Publisher:: Springer Nature
Publication Type:: Chapter
Citation:: RILEM Bookseries, 2023, 44, pp. 1197-1203
Issue Date:: 2023-01-01

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Field	Value	Language
dc.contributor.author	Nguyen, QD
dc.contributor.author	De Carvalho Gomes, S
dc.contributor.author	Alnahhal, MF
dc.contributor.author	Li, W https://orcid.org/0000-0002-4651-1215
dc.contributor.author	Kim, T
dc.contributor.author	Castel, A
dc.date.accessioned	2023-11-14T04:20:52Z
dc.date.available	2023-11-14T04:20:52Z
dc.date.issued	2023-01-01
dc.identifier.citation	RILEM Bookseries, 2023, 44, pp. 1197-1203
dc.identifier.isbn	9783031331862
dc.identifier.uri	http://hdl.handle.net/10453/173403
dc.description.abstract	The major barriers to geopolymer concrete widespread adoption by the construction industry are concerns about durability and exclusion from current standards. Chemical reactions characterizing alkali-activated binder systems differ drastically from conventional hydration process of Portland cement. Thus, the mechanisms by which concrete achieves potential durability are different between the two types of binders. As a result, testing methods and performance-based requirements for geopolymer must be developed to be incorporated in a performance base standard. The standard ASTM C1202 RCPT fails to measure the charges passed through most of geopolymer concretes. A modified version of RCPT using 10V (as opposed to 60V specified by standard ASTM C1202) is considered, allowing to successfully complete the tests for all geopolymer concretes. Various precursors are investigated including fly ash, GGBFS, calcined clay and ferronickel slag. Different activators are also considered. A good correlation is observed between modified ASTM C1202 and Standard ASTM C1556 bulk diffusion test results. Performance-based specifications are proposed.
dc.language	en
dc.publisher	Springer Nature
dc.relation.ispartof	RILEM Bookseries
dc.relation.ispartofseries	RILEM Bookseries
dc.relation.isbasedon	10.1007/978-3-031-33187-9_111
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	Testing Geopolymer Concrete Performance in Chloride Environment
dc.type	Chapter
utslib.citation.volume	44
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	closed_access	*
dc.date.updated	2023-11-14T04:20:51Z
pubs.publication-status	Published
pubs.volume	44

Abstract:

The major barriers to geopolymer concrete widespread adoption by the construction industry are concerns about durability and exclusion from current standards. Chemical reactions characterizing alkali-activated binder systems differ drastically from conventional hydration process of Portland cement. Thus, the mechanisms by which concrete achieves potential durability are different between the two types of binders. As a result, testing methods and performance-based requirements for geopolymer must be developed to be incorporated in a performance base standard. The standard ASTM C1202 RCPT fails to measure the charges passed through most of geopolymer concretes. A modified version of RCPT using 10V (as opposed to 60V specified by standard ASTM C1202) is considered, allowing to successfully complete the tests for all geopolymer concretes. Various precursors are investigated including fly ash, GGBFS, calcined clay and ferronickel slag. Different activators are also considered. A good correlation is observed between modified ASTM C1202 and Standard ASTM C1556 bulk diffusion test results. Performance-based specifications are proposed.

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http://hdl.handle.net/10453/173403