2014 Fiscal Year Final Research Report
Improvement effect of soil by calcium carbonate precipitation technique derived from waste shells
| Project/Area Number |
24560613
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Geotechnical engineering
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| Research Institution | Ishikawa National College of Technology |
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Principal Investigator |
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| Research Collaborator |
TANAKA Hitoshi 株式会社田中建設
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | 土質改良 / 炭酸カルシウム / 貝殻 |
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| Outline of Final Research Achievements |
When the CaCl2 aqueous solution is penetrated into the target-treated soil which was mixed with sodium carbonate (Na2CO3) in advance, CaCO3 crystal is precipitated among soil particles. As the results, the soil particles are cemented each other and then the improved soil turns into very strong material.
In this study, in order to clarify the effect of the improved soil by the calcium carbonate technique, a series of laboratory tests were carried out. The following conclusion is obtained from the present study. The strength characteristics, compressive strength and penetration resistance, of the improved soil is fluctuated remarkably with changes of amount of sodium carbonate mixed in advance.
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| Free Research Field |
工学
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