| Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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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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