Role of Siliceous Species in Geopolymer Reactant Mixture: Interaction with (NH sub(4)) sub(2)Mo sub(2)O sub(7)

Geopolymers are inorganic materials having interesting properties for many using areas. It is well known that geopolymers present various properties depending on the aluminosilicate sources used but lack of understanding are effective. This study consists on the comprehension of the formation of different networks in geopolymers by modify the reactivity of siliceous species in the reactive mixture with ammonium molybdate. These experiments evidenced the existence of various polycondensation reactions between materials leading to the formation of different networks. Moreover the use of ammonium molybdate addition in the mixture induces a slowdown of the reaction.