Journal article

The effects of precursors on rheology and self-compactness of geopolymer concrete

Alireza Kashani, Tuan D Ngo, Priyan Mendis

MAGAZINE OF CONCRETE RESEARCH | ICE PUBLISHING | Published : 2019

Abstract

The inefficiency of typical superplasticisers in geopolymer compared with Portland cement limits the design of a self-compacting concrete. This study investigated the rheology, reactivity and strength of a fly ash, slag and micro fly ash system without superplasticisers in order to find an optimum self-compacting behaviour. The particle size distribution was used to design a mixture of precursors with the highest packing density. The theoretical packing density based on particle size distribution was in close agreement with experimentally obtained packing densities. The effect of the width of the particle size distribution, as determined by the n value in the Rosin-Rammler function, on the r..

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Grants

Funding Acknowledgements

This project was funded through the ARC Centre for Advanced Manufacturing of Prefabricated Housing. The authors thank Louis Yuwono, Da Huo and Kaiyi Yu for their help in making samples and running some of the laboratory experiments. The authors also acknowledge the use of the geopolymer and minerals processing group's laboratory to perform some of the experiments.