Elucidation of the rate of porosity and crack growth in concrete by leaching of calcium

2017 Fiscal Year Final Research Report

• Project/Area Number: 26420441
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Civil engineering materials/Construction/Construction management
• Research Institution: Kanazawa Institute of Technology
• Principal Investigator: KIMURA SADAO 金沢工業大学, 環境・建築学部, 教授 (90339987)
• Co-Investigator(Kenkyū-buntansha): 大嶋 俊一 金沢工業大学, バイオ・化学部, 准教授 (30367453)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Keywords: キレート滴定法 / 蛍光X線分析 / カルシウム溶脱 / 覆工コンクリート / 材料劣化 / トンネル

Outline of Final Research Achievements

In this study, chelate titration was taken as a method for quantitatively grasping the amount of calcium eluted early by leakage. Fluorescent X - ray analysis was taken up as a method to ascertain the change in the amount of calcium present on the cracked surface accompanied by leakage. And we examined the effectiveness of the two. As a result, chelate titration quantitatively measured the amount of calcium eluted. In addition, fluorescent X-ray analysis confirmed that the amount of calcium remaining on the cracked surface can be analyzed to some extent.

Free Research Field

トンネル工学，建設マネジメント