2017 Fiscal Year Final Research Report
Coal fly ash recycles as water holding materials targeting for arid and semi-arid areas
| Project/Area Number |
15H04067
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Civil and environmental engineering
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
高岡 昌輝 京都大学, 地球環境学堂, 教授 (80252485)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | 石炭灰 / 水分保持材 / リサイクル / 砂漠化防止 / 高付加価値化 |
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| Outline of Final Research Achievements |
The objective of this research project is technology development for coal fly ash recycle as soil water holding material. Conventional water holding capacity, based on water potential in soil matrix, showed that amendment of raw coal fly ash increased water holding capacity. In contrast, water retention capacity, based on resistivity against water loss via evaporation, showed that fly ash amendment decreased water retention capacity. This study found that apatite-synthesis surface modification is effective to increase water retention capacity, in particular at high temperature. Organics content is more significant than surface area for water retention capacity.
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| Free Research Field |
環境工学
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