| Project/Area Number |
22760328
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Civil engineering materials/Construction/Construction management
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| Research Institution | Niigata University (2011)
Tokyo Institute of Technology (2010) |
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Principal Investigator |
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| Project Period (FY) |
2010 – 2011
|
| Project Status |
Completed (Fiscal Year 2011)
|
| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2010: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | γ-C2S / 耐塩害 / 耐硫酸 / オートクレーブ養生 / 促進炭酸化養生 / 耐硫酸塩 |
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| Research Abstract |
The purpose of this research is to evaluate the effect of usingγ-C_2S, autoclave and accelerated carbonation to permeability of sulfate ions related to the sulfate resistance, and clarify the permeability of sulfate ions from the view point of the reaction products and the porosity. As a result, in the case of 80% replacement ratio ofγ-C_2S with autoclave and accelerated carbonation, the sulfate ion penetration was the smallest due to the generation of vaterite. In addition, dissolution of 1. 1nm tobermorite in the hardened body could be inhibited. Also, low-Ca/Si C-S-H at the surface of hardened body could possibly contribute to the resistance of sulfate ion penetration.
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