sentences:  This model shows an incompletely reacted geopolymer (left in the figure), which involves free Si-OH groups that will later with time or with temperature polycondense with opposed Al-O-K, into Si-O-Al-O sialate bonds.The water released by this reaction either remains in the pores, is associated with the framework similarly to zeolitic water, or can be released and removed.Several 3D-frameworks are described in the book 'Geopolymer Chemistry and Applications'.