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Naslov:RILEM TC 247-DTA round robin test : sulfate resistance, alkali-silica reaction and freeze-thaw resistance of alkali-activated concretes
Avtorji:ID Winnefeld, Frank (Avtor)
ID Gluth, Gregor J. G. (Avtor)
ID Bernal, Susan A. (Avtor)
ID Bignozzi, Maria Chiara (Avtor)
ID Carabba, Lorenza (Avtor)
ID Chithiraputhiran, Sundararaman (Avtor)
ID Dehghan, Alireza (Avtor)
ID Dolenec, Sabina (Avtor)
ID Dombrowski-Daube, Katja (Avtor)
ID Dubey, Ashish (Avtor)
ID Ducman, Vilma (Avtor)
ID Jin, Yu (Avtor)
ID Peterson, Karl (Avtor)
ID Dietmar, Stephen (Avtor)
ID Provis, John L. (Avtor)
Datoteke:URL URL - Izvorni URL, za dostop obiščite https://link.springer.com/article/10.1617%2Fs11527-020-01562-0
Opis: Odprti dostop
 
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Jezik:Angleški jezik
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:Logo ZAG - Zavod za gradbeništvo Slovenije
Povzetek: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.
Ključne besede:alkali-activated materials/geopolymers, sulphate resistance, alkali silica reactivity, freeze-thaw resistance, Rilem TC
Status publikacije:Objavljeno
Verzija publikacije:Objavljena publikacija
Datum objave:11.11.2020
Založnik:E. & F. N. Spon, RILEM Publications
Leto izida:2020
Št. strani:str. 1-17
Številčenje:Vol. 53, issue 6
PID:20.500.12556/DiRROS-16462 Novo okno
UDK:620.1/.2
ISSN pri članku:1359-5997
DOI:10.1617/s11527-020-01562-0 Novo okno
COBISS.SI-ID:37182979 Novo okno
Avtorske pravice:© The Author(s) 2020
Opomba:Article: 140;
Datum objave v DiRROS:17.08.2023
Število ogledov:944
Število prenosov:481
Metapodatki: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 in 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 [na spletu]. 2020. Vol. 53, no. 6, p. 1–17. [Dostopano 18 marec 2025]. DOI 10.1617/s11527-020-01562-0. Pridobljeno s: https://dirros.openscience.si/IzpisGradiva.php?lang=slv&id=16462
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Gradivo je del revije

Naslov:Materials and structures
Skrajšan naslov:Mat. struct.
Založnik:E. & F. N. Spon, RILEM Publications
ISSN:1359-5997
COBISS.SI-ID:18240005 Novo okno

Gradivo je financirano iz projekta

Financer:RCUK - Research Council UK
Številka projekta:EP/M003272/1
Naslov:Rational design of low-CO2 alkali-activated concretes for eco-efficiency and durability
Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:P2-0273
Naslov:Gradbeni objekti in materiali

Licence

Licenca:CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
Začetek licenciranja:11.11.2020
Vezano na:Text and Data Mining valid from 2020-11-11 Version of Record valid from 2020-11-11

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:alkalijsko aktivirani materiali, sulfatna odpornost, alkalno silikatna reaktivnost, odpornost na zmrzovanje, Rilem TC


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