Workability and strength of coarse high calcium fly ash geopolymer

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Effect of sodium hydroxide concentration on chloride penetration and steel corrosion of fly ash-based geopolymer concrete under marine site (2014, background): “In addition, Ca(OH)2 (the product from a reaction between calcium from fly ash and alkaline activated in geopolymer) reacted with Si and resulted in calcium silicate hydrate (CSH) which is primarily responsible for the strength in cement based materials [4,25,26].”
An overview on the influence of various factors on the properties of geopolymer concrete derived from industrial by-products (2015, background): “Besides, mixing water also provide workability to the freshly mixed geopolymer mortars, as it does not participates directly in the geopolymeric reaction [102].”
Zeta potential, gel formation and compressive strength of low calcium fly ash geopolymers (2015, background): “The mix design for geopolymer concrete is normally based on the dosage and AM but the fly ash material can have distinctly different properties, including the chemical composition, fineness, the relative content of SiO2 and Al2O3 to each other and the activator, the amorphous content and unburnt car”
Study on solids-to-liquid and alkaline activator ratios on kaolin-based geopolymers (2012, background): “Both S/L ratio [17] and Na2SiO3/NaOH ratios [18] influenced the workability of geopolymers.”