| Budget Amount *help |
¥36,400,000 (Direct Cost: ¥28,000,000、Indirect Cost: ¥8,400,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Fiscal Year 2020: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Fiscal Year 2019: ¥15,470,000 (Direct Cost: ¥11,900,000、Indirect Cost: ¥3,570,000)
Fiscal Year 2018: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
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| Outline of Final Research Achievements |
The drying process of cementitious materials involves the viscoelastic behavior of water migration due to dynamic changes in the pore structure. To clarify this behavior, 1H-NMR Relaxometry was used to determine how the pore structure produced by hydration is consistent with conventional adsorption data and what kind of pore structure changes occur during drying. It was clarified that three types of voids are generated by calcium silicate hydrates. Furthermore, we numerically modeled elastic dehydration and viscoelastic dehydration with pore structure changes during drying and proposed a time-dependent adsorption isotherm model to evaluate time-consuming dehydration in the medium-humidity range.
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