| Title |
Application of Ultrasonic Pulse Velocity in Non-Destructive Quality Assessment of Traditional Roof Tiles |
| Authors |
황용하(Hwang, Yong-Ha) ; 강성훈(Kang, Sung-Hoon) ; 권양희(Kwon, Yang-Hee) |
| DOI |
https://doi.org/10.5659/JAIK.2025.41.5.289 |
| Keywords |
Architectural Heritage; Non-destructive Evaluation; Ultrasonic Pulse Velocity Test; Handmade Traditional Korean Roof Tile; Firing Temperature |
| Abstract |
Due to temperature variations inside the kiln and differences in shape or dimensions, handmade roof tiles fired in traditional kilns often
exhibit significant quality deviations. To address this, a non-destructive, rapid screening method based on ultrasonic pulse velocity (UPV) is
proposed. The correlation between UPV and established test methods, absorption rate, flexural strength, and freezing resistance, was analyzed
to validate the effectiveness of the proposed screening approach. Specifically, roof tiles not exposed to temperatures above 1000°C, where
clay mineral recrystallization occurs, failed to meet absorption rate and flexural strength standards, and their UPV did not reach the required
threshold of 2,550 m/s. This suggests that using UPV to screen for low-quality tiles is a reasonable approach. While further verification is
needed, if implemented, the proposed method could significantly minimize the damage to architectural heritage caused by low-quality tiles. |