Title:
Properties of Geopolymer Concrete with Fly Ash as Source Material: Effect of Mixture Composition
Author(s):
D. Hardjito, S. E. Wallah, D. M. J. Sumajouw,
and B. V. Rangan
Publication:
Symposium Paper
Volume:
222
Issue:
Appears on pages(s):
109-118
Keywords:
compressive strength; fly ash; geopolymer concrete; mixture composition
DOI:
10.14359/13308
Date:
5/1/2004
Abstract:
This paper presents the effect of mixture composition on the compressive strength of fly ash-based geopolymer concrete. Test results show that water-to-sodium oxide (H2O-to-Na2O) molar ratio and the water-to-geopolymer solids ratio by mass influence the compressive strength of fly ash-based geopolymer concrete. The compressive strength decreases when these ratios increase. However, the sodium oxide-to-silicon oxide (Na2O-to-SiO2) molar ratio of the geopolymer mixture does not have any significant effect on the compressive strength within the range of 0.095 and of 0.120 of this ratio.