Ross P. Williams

TL;DR: In this paper, the authors examined the lifecycle cost and carbon impacts of Ordinary Portland Cement (OPC) and geopolymers in an Australian context, with an identification of some key challenges for geopolymer development.

TL;DR: Addition of calcium compounds as a fly ash substitute improved mechanical properties for the ambient temperature cured samples while decreasing Properties for the 70 degrees C cured samples.

TL;DR: In this article, the effect of fly ash activation on the properties of the geopolymers cured at ambient temperature has been studied and after 28 days, compressive strength of the room temperature cured samples was 16 (2) and 45 (8) MPa for unmilled and mechanically activated fly ash based samples, respectively.

TL;DR: In this article, the authors report on the characterisation of fly ash from three Australian power stations in terms of elemental composition, phase composition, particle size, density and morphology, and the effect of the source fly ash characteristics on the hardened product is discussed, as well as implications for high temperature applications.

TL;DR: In this paper, the amorphous components of fly ash are the reactive components in the geopolymerization reaction and this information is used to synthesize metakaolin geopolymers with the same targeted composition.