| Project/Area Number |
06650552
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Geotechnical engineering
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| Research Institution | Wakayama National College of Technology |
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Principal Investigator |
SASAKI Seiichi Wakayama National College of Technology, Enviromental of Civil Engineeri, Professor, 環境都市工学科, 教授 (90043546)
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| Co-Investigator(Kenkyū-buntansha) |
SIOJI Syuhei Wakayama National College of Technology, Material Engineeri, Associate Professor, 物質工学科, 助教授 (90178848)
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| Project Period (FY) |
1994 – 1996
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| Project Status |
Completed (Fiscal Year 1996)
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| Budget Amount *help |
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1996: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1995: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1994: ¥1,100,000 (Direct Cost: ¥1,100,000)
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| Keywords | Chemical Pollutant / Cupper Ion / Degree of Weathering / Decomposed Granite Soil / Adsorption Characteristics / Soil Fabric / Diffusivity / Concentration Evaluation / 遅延係数 / 拡散係数 / 濃度変化 |
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| Research Abstract |
It is found from the results of copper ion adsorption experiment that the copper ion adsorption properties vary remarkably with the degree of weathering of samples. The ignition loss which has been adopted as a criterion of the degree of weathering is related to the amount of adsorbed copper ion. The slightly weathered sample shows Langmuir type and the severely weathered one is given by BET type from the sdsorption characteristics examining in detail, and the adsoption phynomenon for the severely weathered sample is confirmed as the adsorption within the pore systems caused by increasing degree of weathering by means of X ray micro analyer. Especially, the copper ion adsorption and the change of concentration for undisturbed sample of the weathered sample are charaterized by the soil fabric which is dependent on the pore size distribution.
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