RILEM TC 247-DTA round robin test

RILEM TC 247-DTA round robin test: mix design and reproducibility of compressive strength of alkali-activated concretes

Provis, John L. (University of Sheffield)
Arbi, Kamel (Delta Concrete Consult B. V.)
Bernal, Susan A. (University of Sheffield; University of Leeds)
Bondar, Dali (Queen's University Belfast)
Buchwald, Anja (ASCEM B.V.)
Castel, Arnaud (University of New South Wales)
Chithiraputhiran, Sundararaman (USG Corporation)
Ye, G. (TU Delft Microlab; TU Delft Materials and Environment)
Zuo, Y. (TU Delft Microlab; TU Delft Materials and Environment)

2019

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.

Alkali-activated concretes
Blast furnace slag
Compressive strength
Fly ash
Metakaolin
Round robin

http://resolver.tudelft.nl/uuid:91dde07c-6280-4a64-8f43-beb63cc4b345

https://doi.org/10.1617/s11527-019-1396-z

1359-5997

Materials and Structures, 52 (5)

Institutional Repository

journal article

© 2019 John L. Provis, Kamel Arbi, Susan A. Bernal, Dali Bondar, Anja Buchwald, Arnaud Castel, Sundararaman Chithiraputhiran, G. Ye, Y. Zuo, More Authors