A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Sonic-IR imaging technique for detection of crack interfaces in cementitious materials
Highlights Sonic-IR is applied for detecting cracks interfaces inside cementitious materials. Fracture region with cracks formed under compressive stress is detectable. Epoxy resin injection depth into concrete is estimated on its surface. The imaging technique is proposed as an NDT to identify the damage/repair condition.
Abstract Sonic-IR (Infrared) imaging technique was applied to detect defects of cementitious materials in the temperature rise of thermal imaging by ultrasonic excitation and infrared thermography on the target surface. It was investigated in this study to identify the fracture regions with cracks inside mortar and quantifying the epoxy resin filling situation at repaired crack in concrete. As the results, it was found that sonic-IR imaging technique can be utilized for detecting the fracture area and the crack propagation zone, although it is known that the technique is usually introduced for metals or composite materials which have high thermal conductivity. In particular, the shear fracture surface formed due to compressive stress could be detected as well as X-ray CT imaging. It was also enabled to quantitatively clarify the fracture progress with damage degree of mortar subjected to the compression stress and the epoxy resin injected depth at the simulated crack in concrete.
Sonic-IR imaging technique for detection of crack interfaces in cementitious materials
Highlights Sonic-IR is applied for detecting cracks interfaces inside cementitious materials. Fracture region with cracks formed under compressive stress is detectable. Epoxy resin injection depth into concrete is estimated on its surface. The imaging technique is proposed as an NDT to identify the damage/repair condition.
Abstract Sonic-IR (Infrared) imaging technique was applied to detect defects of cementitious materials in the temperature rise of thermal imaging by ultrasonic excitation and infrared thermography on the target surface. It was investigated in this study to identify the fracture regions with cracks inside mortar and quantifying the epoxy resin filling situation at repaired crack in concrete. As the results, it was found that sonic-IR imaging technique can be utilized for detecting the fracture area and the crack propagation zone, although it is known that the technique is usually introduced for metals or composite materials which have high thermal conductivity. In particular, the shear fracture surface formed due to compressive stress could be detected as well as X-ray CT imaging. It was also enabled to quantitatively clarify the fracture progress with damage degree of mortar subjected to the compression stress and the epoxy resin injected depth at the simulated crack in concrete.
Sonic-IR imaging technique for detection of crack interfaces in cementitious materials
Hashimoto, Katsufumi (author) / Shiotani, Tomoki (author)
2023-04-25
Article (Journal)
Electronic Resource
English
Determination of representative crack density of cementitious materials
| British Library Conference Proceedings | 2008
Plastic-Damage Model for Interfaces in Cementitious Materials
| Online Contents | 1998