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Title:RILEM TC 247-DTA round robin test : sulfate resistance, alkali-silica reaction and freeze-thaw resistance of alkali-activated concretes
Authors:ID Winnefeld, Frank (Author)
ID Gluth, Gregor J. G. (Author)
ID Bernal, Susan A. (Author)
ID Bignozzi, Maria Chiara (Author)
ID Carabba, Lorenza (Author)
ID Chithiraputhiran, Sundararaman (Author)
ID Dehghan, Alireza (Author)
ID Dolenec, Sabina (Author)
ID Dombrowski-Daube, Katja (Author)
ID Dubey, Ashish (Author)
ID Ducman, Vilma (Author)
ID Jin, Yu (Author)
ID Peterson, Karl (Author)
ID Dietmar, Stephen (Author)
ID Provis, John L. (Author)
Files:URL URL - Source URL, visit https://link.springer.com/article/10.1617%2Fs11527-020-01562-0
Description: Odprti dostop
 
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Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo ZAG - Slovenian National Building and Civil Engineering Institute
Abstract:The RILEM technical committee TC 247-DTA ‘Durability Testing of Alkali-Activated Materials’ conducted a round robin testing programme to determine the validity of various durability testing methods, originally developed for Portland cement based-concretes, for the assessment of the durability of alkali-activated concretes. The outcomes of the round robin tests evaluating sulfate resistance, alkali-silica reaction (ASR) and freeze–thaw resistance are presented in this contribution. Five different alkali-activated concretes, based on ground granulated blast furnace slag, fly ash, or metakaolin were investigated. The extent of sulfate damage to concretes based on slag or fly ash seems to be limited when exposed to an Na2SO4 solution. The mixture based on metakaolin showed an excessive, very early expansion, followed by a dimensionally stable period, which cannot be explained at present. In the slag-based concretes, MgSO4 caused more expansion and visual damage than Na2SO4; however, the expansion limits defined in the respective standards were not exceeded. Both the ASTM C1293 and RILEM AAR-3.1 test methods for the determination of ASR expansion appear to give essentially reliable identification of expansion caused by highly reactive aggregates. Alkali-activated materials in combination with an unreactive or potentially expansive aggregate were in no case seen to cause larger expansions; only the aggregates of known very high reactivity were seen to be problematic. The results of freeze–thaw testing (with/without deicing salts) of alkali-activated concretes suggest an important influence of the curing conditions and experimental conditions on the test outcomes, which need to be understood before the tests can be reliably applied and interpreted.
Keywords:alkali-activated materials/geopolymers, sulphate resistance, alkali silica reactivity, freeze-thaw resistance, Rilem TC
Publication status:Published
Publication version:Version of Record
Publication date:11.11.2020
Publisher:E. & F. N. Spon, RILEM Publications
Year of publishing:2020
Number of pages:str. 1-17
Numbering:Vol. 53, issue 6
PID:20.500.12556/DiRROS-16462 New window
UDC:620.1/.2
ISSN on article:1359-5997
DOI:10.1617/s11527-020-01562-0 New window
COBISS.SI-ID:37182979 New window
Copyright:© The Author(s) 2020
Note:Article: 140;
Publication date in DiRROS:17.08.2023
Views:965
Downloads:488
Metadata:XML DC-XML DC-RDF
:
WINNEFELD, Frank, GLUTH, Gregor J. G., BERNAL, Susan A., BIGNOZZI, Maria Chiara, CARABBA, Lorenza, CHITHIRAPUTHIRAN, Sundararaman, DEHGHAN, Alireza, DOLENEC, Sabina, DOMBROWSKI-DAUBE, Katja, DUBEY, Ashish, DUCMAN, Vilma, JIN, Yu, PETERSON, Karl, DIETMAR, Stephen and PROVIS, John L., 2020, RILEM TC 247-DTA round robin test : sulfate resistance, alkali-silica reaction and freeze-thaw resistance of alkali-activated concretes. Materials and structures [online]. 2020. Vol. 53, no. 6, p. 1–17. [Accessed 22 March 2025]. DOI 10.1617/s11527-020-01562-0. Retrieved from: https://dirros.openscience.si/IzpisGradiva.php?lang=eng&id=16462
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Record is a part of a journal

Title:Materials and structures
Shortened title:Mat. struct.
Publisher:E. & F. N. Spon, RILEM Publications
ISSN:1359-5997
COBISS.SI-ID:18240005 New window

Document is financed by a project

Funder:RCUK - Research Council UK
Project number:EP/M003272/1
Name:Rational design of low-CO2 alkali-activated concretes for eco-efficiency and durability
Funder:ARRS - Slovenian Research Agency
Project number:P2-0273
Name:Gradbeni objekti in materiali

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:11.11.2020
Applies to:Text and Data Mining valid from 2020-11-11 Version of Record valid from 2020-11-11

Secondary language

Language:Slovenian
Keywords:alkalijsko aktivirani materiali, sulfatna odpornost, alkalno silikatna reaktivnost, odpornost na zmrzovanje, Rilem TC


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