Journal
MATERIALS AND STRUCTURES
Volume 52, Issue 5, Pages -Publisher
SPRINGER
DOI: 10.1617/s11527-019-1396-z
Keywords
Alkali-activated concretes; Compressive strength; Blast furnace slag; Fly ash; Metakaolin; Round robin
Categories
Funding
- Engineering and Physical Sciences Research Council (EPSRC
- UK) [EP/M003272/1]
- Slovenian Research Agency Programme [P2-0273]
- ZIM - Central Innovation Program, German Federal Ministry of Economic Affairs and Energy (BMWi)
- Materials innovation institute M2i/Netherlands Organisation for Scientific Research (STW/M2i Project) [13361]
- Delta Concrete Consult BV
- EPSRC [EP/R001642/1, EP/M003272/1] Funding Source: UKRI
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The aim of RILEM TC 247-DTA 'Durability Testing of Alkali-Activated Materials' is to identify and validate methodologies for testing the durability of alkali-activated concretes. To underpin the durability testing work of this committee, five alkali-activated concrete mixes were developed based on blast furnace slag, fly ash, and flash-calcined metakaolin. The concretes were designed with different intended performance levels, aiming to assess the capability of test methods to discriminate between concretes on this basis. A total of fifteen laboratories worldwide participated in this round robin test programme, where all concretes were produced with the same mix designs, from single-source aluminosilicate precursors and locally available aggregates. This paper reports the mix designs tested, and the compressive strength results obtained, including critical insight into reasons for the observed variability in strength within and between laboratories.
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