SIAL® is a geopolymer used for  field of radioactive waste disposal, and it is possible to solidify same way as the solidification of cement. It is able to solidify the spent ion exchange resin, sludge-like waste , incineration ash, oil, concentrated liquid waste which are difficult to solidify by cement. Geopolymer is a general term formed by polycondensation of inorganic aluminosilicate components and it is attracting interest due to the confinement effect of cesium. SIAL® was developed by AllDeco Ltd (currently: Jacobs Nuclear Slovakia s.r.o.) and SIAL® is the first geopolymer applied for radioactive waste disposal in the world. It acquired licence as the solidification material of radioactive waste disposal from Slovakia Nuclear Regulator (UJD SR) in 2003 and Czech Nuclear Regulator (SUJB) in 2006. Fuji Electric is proceeding development of SIAL® application of radioactive waste in Japan and currently conducting solidification of 200 litters drum in the laboratory at Kawasaki. Moreover, Fuji Electric conducted first time in Japan to solidify the actual radioactive waste (filter sludge and spent ion exchange resin) at laboratory of nuclear power plant, and it is already confirmed that it shows well characteristics of Kd and compressive strength as the waste body.
In this exhibition, we  would like to introduce introducing the following items:
The process of disposal of radioactive waste and experiences in Slovakia.
The characteristics of SIAL® : working time from viscosity after kneading, the outside and inside temperature of waste body itself, the result of solidification experiments from the nuclear power plant in Japan.