Development of nondestructive evaluation method for fire performance of fire-retardant treated wood using air-coupled ultrasonic

2023 Fiscal Year Final Research Report

• Project/Area Number: 21K04353
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 23010:Building structures and materials-related
• Research Institution: Kyushu University
• Principal Investigator: Hasegawa Masumi 九州大学, 農学研究院, 助教 (00372756)
• Co-Investigator(Kenkyū-buntansha): 岡村 博幸 福岡県工業技術センター, その他部局等, 研究員 (80502244)
• Project Period (FY): 2021-04-01 – 2024-03-31
• Keywords: 防火木材 / 空中超音波 / X線CT / 難燃処理

Outline of Final Research Achievements

This study aims to establish a new non-contact and non-destructive evaluation method for the fire performance of fire-retardant treated wood using air-coupled ultrasonic waves. Through investigations aimed at elucidating the relationship between fire performance and air-coupled ultrasonic waves and fire performance tests, it was found that air-coupled ultrasonic waves could be effective non-destructive tools. Furthermore, it was revealed that detailed analysis could be achieved using X-ray CT.　Moving forward, continued detailed investigations will contribute to the development and production of safe and reliable products with the prescribed fire performance.

Free Research Field

木材工学

Academic Significance and Societal Importance of the Research Achievements

木材は建築材料として利用することで，長期間，二酸化炭素を貯蔵するため，木質化は地球温暖化を緩和する非常に有効な取組の一つである。本研究課題の成果に更なる検討を加えることで，所定の防火性能を持つ安心・安全な製品の開発・製造が可能となると同時に，安心・安全な木造住宅も建設することができ，森林資源の循環利用を促進して木材利用の拡大に導く。以上のことから本研究課題の成果は学術的意義や社会的意義がある。