| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Outline of Final Research Achievements |
Using various fly ash (coal ash) and metakaolin with different properties as starting materials, preparation conditions of the nano porous geopolymer and the pore structure and their texture formation of the aluminosilicate network were clarified. In addition, the preparation method revealed the thermal stability in the higher temperature region above 500 ℃ and the influence on the phase change mechanism. The reaction activity of the fly ash as raw material largely depends on the properties of the surface-coated carbon, and the surface modification treatment by appropriate chemical treatment, pulverization and the like can improve reaction activity and stabilize. It was also found a preparation condition that a cation exchange capacity of 400 meq / 100 g or more and a distribution coefficient of Sr ion exchange / sorption characteristics in sea water shown the order of thousands of distribution coefficients.
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