2013 Fiscal Year Final Research Report
Quantitative evaluation of self-restration capacity of granulated blast furnace slag
| Project/Area Number |
23560993
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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 |
Recycling engineering
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| Research Institution | Yamaguchi University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
ISHIKURA Ryohei 九州大学, 工学(系)研究科, 助教 (90510222)
HARA Hiroyuki 山口大学, 大学院理工学研究科, 助教 (00588709)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 高炉水砕スラグ / 潜在水硬性 / せん断強さ |
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| Research Abstract |
GBFS (granulated blast furnace slag) has a capability of self-restoration in shear strength by its hydration reaction. In this study, in order to investigate the self-restoration characteristics of GBFS under different curing conditions, including those which was taken from the test embankment constructed 11 years ago, the quantitative change in the unconfined compressive strength and the hydration reaction were observed. Furthermore, based on the relation between the shear strength and the hydration reaction, it is clarified that the shear strength of GBFS under long term curing in natural condition increases with the hydration reaction and based on the relation between the strength and the hydration reaction, a new equation to evaluate the shear strength of GBFS concerning the curing conditions and the shear deformation histories was proposed.
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