Mechanical index to evaluate the substance permeation inhibition property of silicate type surface penetrants

2018 Fiscal Year Final Research Report

• Project/Area Number: 16K18133
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Civil engineering materials/Construction/Construction management
• Research Institution: Kochi National College of Technology
• Principal Investigator: KONDO Takuya 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)
• Research Collaborator: MIYAZATO shin-ichi ; YOKOI katsunori ; NISHINO hideki
• Project Period (FY): 2016-04-01 – 2019-03-31
• Keywords: けい酸塩系表面含浸工 / ビッカース硬さ試験 / 劣化因子侵入阻止性 / 定量評価 / Ca(OH)2

Outline of Final Research Achievements

In order to develop a method to evaluate the degradation factor penetration prevention property of silicate type surface penetrants, the Vickers hardness test was conducted by utilizing the increase in the strength of the reaction part of the silicate type surface penetrants. Then, it was examined whether the area of hardness increment and modification depth could be deterrent to deterioration factor penetration.
Water absorption inhibition by the water absorption test and the inhibition by the salt penetration test were evaluated. As a result, this index has shown the possibility of being applicable as a deterioration factor penetration prevention property of the silicate type surface penetrants. However, as the issues were clarified, the need to consider was also clarified.

Free Research Field

維持管理工学

Academic Significance and Societal Importance of the Research Achievements

（成果の学術的意義）けい酸塩系表面含浸材の施工によるビッカース硬度分布を明らかとしたことは，今まで諸説あったけい酸塩系表面含浸材の浸透プロセスの解明に大きく寄与できたものと考えられる。また，本評価手法と各方法を組み合わせることにより，劣化因子侵入阻止性評価手法がさらに検討されることになると考えられる。
（成果の社会的意義）けい酸塩系表面含浸材の開発や適用検討について，一つの目標を提示することができたと考えられる。よって，適用時の費用負担の軽減や効率化を図ることが可能になったと考えられる。