Abstract: Geopolymer is an inorganic cementing material with alternately bonding network structure formed by activating siliceous-aluminous material .The present method of synthesizing geopolymer mainly includes the following two kinds:one is solidified after mixing the active aluminosilicate raw material with activator solution ( denoted as GS-1 for convenience ); the other is solidified after adding water to the solid precursor directly ( denoted as GS-2 for convenience ) .In this paper , the research status of GS-2 was reviewed , then GS-1 was compared with GS-2 in components of the reactants as well as the reaction process and mechanism , finally prospect of GS-2 in performance improvement for geopolymer was provided .

Key words: geopolymer;synthesis method;components of the reactants;the reaction process and mechanism