Autogenous shrinkage of alkali-activated slag: A critical review

This paper provides a critical review on autogenous shrinkage of alkali-activated slag (AAS). It is reported that AAS paste, mortar, and concrete generally show larger autogenous shrinkage than Portland cement (PC) counterparts. Self-desiccation is the main driving force of the autogenous shrinkage of hardened AAS, but other mechanisms also...

RILEM TC 281-CCC Working Group 6: Carbonation of Alkali Activated Concrete: Preliminary Results of a Literature Survey and Data Analysis

The current understanding of the carbonation of alkali-activated concretes is hampered inter alia by the wide range of binder chemistries used. To overcome some of the limitations of individual studies and to identify general correlations between their mix design parameters and carbonation resistance, the RILEM TC 281-CCC working group 6...

Report of RILEM TC 267-TRM phase 2: Optimization and testing of the robustness of the R3 reactivity tests for supplementary cementitious materials

The results of phase 1 of an interlaboratory test, coordinated by the RILEM TC 267-TRM “Tests for Reactivity of Supplementary Cementitious Materials” showed that the R³ (rapid, relevant, reliable) test method, by measurement of heat release or bound water, provided the most reliable and relevant determination of the chemical...

Report of RILEM TC 267-TRM phase 3: validation of the R³ reactivity test across a wide range of materials

RILEM TC 267 TRM– “Tests for Reactivity of Supplementary Cementitious Materials” recommends the Rapid Reliable Relevant (R3) test as a method for determining the chemical reactivity of supplementary cementitious materials (SCMs) in Portland cement blends. In this paper, the R3 test was applied to 52 materials from a wide range of conventional...

Influence of mix design parameters on reactivity and setting of alkali-activated materials

The mix design of alkali-activated materials (AAMs) is developed by taking into account several interdependent parameters. Therefore, the optimization of these to achieve a robust composition might represent a great challenge. The aim of this study is to investigate and compare the influence of some key parameters on the reactivity and setting...