Quantitative evaluation on the reforming effect of the silicate-based surface penetrants and the ability to prevent the invasion of deterioration factors

2021 Fiscal Year Final Research Report

• Project/Area Number: 19K04564
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 22010:Civil engineering material, execution and construction management-related
• Research Institution: Kochi National College of Technology
• Principal Investigator: Takuya Kondo 高知工業高等専門学校, ソーシャルデザイン工学科, 准教授 (70758672)
• Project Period (FY): 2019-04-01 – 2022-03-31
• Keywords: けい酸塩系表面含浸工 / 改質効果 / ビッカース硬さ試験 / Cl-浸透阻止性 / 定量評価

Outline of Final Research Achievements

As a method for quantitatively evaluating the reforming effect of the silicate-based surface penetrants, the Vickers hardness test method proposed by the applicants was used to examine various factors affecting the reforming effect. As a result, as the reforming effect of the silicate-based surface penetrants, it was possible to sort out those that affect the "Vickers hardness increase amount" and those that affect the "reforming depth". In addition, using this, we also proposed a quantitative evaluation method for Cl- penetration inhibition. As a result, it was shown that the Vickers hardness method could be used to quantitatively evaluate the reforming effect of the silicate-based surface penetrants and the Cl- penetration inhibitory property.

Free Research Field

コンクリート工学

Academic Significance and Societal Importance of the Research Achievements

社会基盤を構成する土木構造物は、少子高齢化や緊縮財政状況を踏まえ、より効果的かつ省行程による維持管理方法が強く要請される。そのため、補修材料の効果や適用条件の整理を行うことは非常に重要となる。
今回申請者らが実施した研究は、けい酸塩系表面含浸工の施工効果に与える影響について、基礎的かつ公平な成果を提供できたものと考えられる。また、Cl-浸透阻止の定量評価も行うことができ、社会に対して非常に有益なデータを公表できたものと考えられる。今後データを積み増すことで、実場面での維持管理計画について大きな役割を果たすことができると考えられる。