Effect of alkali activators on diffusivity of metakaolin-based geopolymers

A basic investigation into whether a geopolymer can be utilized as part of an artificial barrier during radioactive waste disposal was conducted in this study. Geopolymers are comprised primarily alumina and silica, they exhibit negligible leaching owing to the absence calcium. Studies on geopolymers limited compared those other cementitious materials because physical characteristics vary with production conditions. In work, metakaolin based were prepared, their diffusion performance analyzed. The results indicate that diffusivity cesium is affected by type alkali activator. Sodium-activated had higher adsorption capacity than potassium-activated geopolymers. also significant effect It shown that, addition pore structure surface area, mobility water affects geopolymer.