2021 Fiscal Year Final Research Report
Development of multifunctional silicate surface impregnation method and establishment of design and construction method capable of quantitative verification
| Project/Area Number |
19K04550
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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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| Review Section |
Basic Section 22010:Civil engineering material, execution and construction management-related
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| Research Institution | Gifu University |
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Principal Investigator |
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| Project Period (FY) |
2019-04-01 – 2022-03-31
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| Keywords | 補修 / コンクリート / けい酸塩 / 表面含浸材 / ひび割れ |
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| Outline of Final Research Achievements |
This research was conducted to obtain further effectiveness of silicate surface impregnation material which is one of the repair methods of concrete structures. As the result, the silicate mixed with CNF (cellulose nanofiber) became the liquid of high viscosity, and it could fill the crack of 0.2 - 0.6 mm width. Silicate surface impregnation material mixed with silane-based repellent protects the surface layer by the water repellent action until the modified layer by silicate is formed. With this material, alkali metal ion tended to remain more in the surface layer after 4 and a half months.
And, a seal to be used in the quality control in the application of the surface impregnation material that is colorless and transparent.
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| Free Research Field |
コンクリート工学
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| Academic Significance and Societal Importance of the Research Achievements |
けい酸塩系表面含浸材に，添加剤や反応補助剤としてさまざまな材料を混和することによって，機能や性能の向上を達成することができた．特に，実構造物への施工や曝露試験も実施することによって，求める機能を明らかにした上で，適切なけい酸塩系表面含浸材を選択することを可能とし，さらにその効果を実証することができた．
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