Development of optimum reinforcement of RC member suffered from high temperature and detonation

2016 Fiscal Year Final Research Report

• Project/Area Number: 26420561
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Building structures/Materials
• Research Institution: Tokyo University of Science
• Principal Investigator: Imamoto Kei-ichi 東京理科大学, 工学部第二部建築学科, 教授 (60337300)
• Co-Investigator(Renkei-kenkyūsha): Ozawa Mitsuo 群馬大学, 理工学研究科, 准教授 (80313906)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 熱的作用 / 爆轟損傷 / 表面含浸材 / 物質移動 / アラミド繊維 / 補強

Outline of Final Research Achievements

This study proposes repair and retrofitting method for damaged reinforced concrete member due to high temperature and detonation. Aggressive agent easily transports in concrete suffered from high temperature and this phenomenon obviously affects durability of concrete structure. Authors indicated that surface impregnation agent was effective as repair material to prevent moisture ingress into concrete. Nondestructive test method to evaluate damage of concrete due to detonation was also proposed and effectiveness of retrofitting method using aramid fiber was verified. Basic information for the repair and retrofitting methods for damaged concrete member due to high temperature and detonation were obtained though out this project.

Free Research Field

コンクリート工学