Setting Time, Strength, and Bond of High-Calcium Fly Ash Geopolymer Concrete

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Clean production and properties of geopolymer concrete; A review (2020, background): “Several studies have stated that high silicate content can raise the MoE of GeoPC and reduce that of OPC concrete (Yusuf et al., 2015).”
An overview on the influence of various factors on the properties of geopolymer concrete derived from industrial by-products (2015, background): “[40] reported high calcium FA geopolymer concrete can exhibits similar or higher modulus of elasticity with a lower SS/SH ratio, corresponding to higher amount of Na2O.”
Optimum mix design of geopolymer pastes and concretes cured in ambient condition based on compressive strength, setting time and workability (2019, background): “However, geopolymer materials (pastes, mortars 40 and concretes) have been proven to have comparable properties to OPC materials (pastes, mortars and 41 concretes) [1, 3, 4], and they can be made by activating industrial by-products, such as slag and fly ash, 42 with alkaline solution [5-7].”