Study of the non-contact and non-destructive inspection for measuring peeling in shallow layer of concrete using high-intensity aerial ultrasonic wave

2014 Fiscal Year Final Research Report

• Project/Area Number: 25870784
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Civil engineering materials/Construction/Construction management; Structural engineering/Earthquake engineering/Maintenance management engineering
• Research Institution: Nihon University
• Principal Investigator: OSUMI Ayumu 日本大学, 理工学部, 助手 (40579413)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: 強力超音波 / 空中超音波 / 非破壊検査 / 非接触検査

Outline of Final Research Achievements

The objective of this study is to develop a non-contact and non-destructive method for detecting defect in shallow layer in concrete by high-intensity aerial ultrasonic waves and optical equipment and a real time measuring system.A propose method detected defects at shallow layer in concrete to measure vibration on the surface of the object which is excited using high-intensity aerial ultrasonic waves.In this study, we performed (1) development of experimental device (2) formation of experimental specimen (3) experiment of detecting defect by development system. As a result, it is possible to underestimate the peering depth 8 mm by development system of proposed method.

Free Research Field

超音波工学