Study on the process of strength development and degradation in chemical ground improvement by lime and cement
| Project/Area Number |
23560592
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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 | Saga University |
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Principal Investigator |
NEGAMI Takehito 佐賀大学, 工学(系)研究科(研究院), 助教 (30325592)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | 化学的地盤改良 / 沖積粘土 / ポゾラン反応 / 有明粘土 / 改良強度 / 強度低下 / 軟弱地盤 |
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| Research Abstract |
In this study, the effects of soil environment on the improved strength was investigated when the chemical improvement was applied for soft grounds. To prepare a specimen of the unconfined compression test, were immersed distilled water, brine, dilute sulfuric acid. After curing period predetermined, were performed dissolution tests and unconfined tests. From the results of tests, it was found that the strength reduction due to dissolution hardly occurs by changes of surrounding grounds in the high blending ratio of hardening materials. At low blending ratio of hardening materials, decrease in strength is greater than the high blending ratio of hardening material. And, that if the salt water is most pronounced revealed.
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Report
(4 results)
Research Products
(15 results)
