6. Examples of geopolymerization
In the following examples, we perform mild, low-caustic alkalination using sodium or potassium silicate solutions with SiO 2 :Na 2 O or SiO 2 :K 2 O molar ratios of between 1.45 and 1.85.
In this article, we focus on the reactivity of a mineral that was at the origin of the discovery of geopolymers, namely calcined kaolinite, or metakaolinite, referred to as metakaolin or MK-750 to indicate the calcination temperature. This raw material is free of impurities, enabling simpler analysis of the alkaline geopolymerization mechanism.
This chemistry of silicates and aluminosilicates is based on three complementary processes:...
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Examples of geopolymerization
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