Experimental study for versatile use of silicate-based surface penetrant

2023 Fiscal Year Final Research Report

• Project/Area Number: 20K15626
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 41030:Rural environmental engineering and planning-related
• Research Institution: Kagawa National College of Technology
• Principal Investigator: Hasegawa Yuki 香川高等専門学校, 建設環境工学科, 講師 (70797092)
• Project Period (FY): 2020-04-01 – 2024-03-31
• Keywords: 表面含浸材 / 表面含浸工法 / 改質 / ビッカース硬さ / フライアッシュ / 高炉スラグ / 溶脱 / 摩耗

Outline of Final Research Achievements

As a result of this study, the modification effect of silicate-based surface penetrant was clarified for cement types other than ordinary cement and cement with admixtures. Specifically, it was confirmed that modification effect of the penetrant material was shown for both blast-furnace cement and fly ash cement, but the modification effect was smaller than that for ordinary cement. The modification effect of the penetrant material on the combined deterioration of Calcium leaching and abrasion, which is the major deterioration of chanal concrete, was also verified, and it was confirmed that the modification effect of the penetrant material could be demonstrated even when calcium loss due to leaching was advanced. However, the modification mechanism of the penetrant material in the leaching layer needs to be analyzed in detail in the future.

Free Research Field

農業農村工学，材料施工

Academic Significance and Societal Importance of the Research Achievements

農業水利施設に対する表面含浸工法の適用性については，近年，データ蓄積が進んでいるところである。本研究成果は，今後，けい酸塩系表面含浸材の水路コンクリートへの適用を検討するにあたって，実務上，有益な情報である。加えて，高炉セメントやフライアッシュセメントにおける含浸材の改質効果については，既往研究等では十分な成果が蓄積されているとはいえず，本研究成果は，広くコンクリート工学の分野において，意義深いデータを蓄積できたといえる。