| Title |
A Study on the Performance Evaluation Criteria of Internal Combustible Materials in Sandwich Panel Structures for Buildings: Focusing on Peeling and Flying of Paint |
| Authors |
강경신(Kang, Kyeong-Sin) ; 문소윤(Moon, So-Yun) ; 채승언(Chae, Seung-Un) ; 이재승(Lee, Jae-Sung) ; 유지선(You, Ji-Sun) |
| DOI |
https://doi.org/10.5659/JAIK.2025.41.2.337 |
| Keywords |
Sandwich Panel; Coating Finish Materials; Evaluation of the Heat Characteristic; KS F ISO 13784-1; Ignition of Internal Combustibles |
| Abstract |
The damage to building sandwich panels continues to increase due to the spread of fire and difficulty in extinguishing it, primarily caused
by the ignition of combustibles inside the compartment. This ignition is mainly attributed to increased heat in the compartment space and the
rising temperature of the combustible surface. This study aimed to analyze the ignition phenomenon of internal combustibles in sandwich
panels. The performance of sandwich panel cores (glass wool, expanded polystyrene) and steel plate coatings (polyester, silicone polyester)
was evaluated. Results confirmed that heat accumulates as the internal temperature rises during a fire, leading to the flying phenomenon of
coating materials, which can ignite internal combustibles. Specifically, for glass wool, heat accumulation is significant, and polyester coatings
are prone to carbonization, softening, and peeling, contributing to the flying phenomenon. Currently, according to KS F ISO 13784-1,
performance is evaluated based on newspaper ignition. There is a need to revise this by incorporating objective performance evaluation
methods for temperature measurement using thermocouples (200℃, newspaper ignition or not, and ignition temperature). |