Abstract
A series of fire resistance experiments of drywall were conducted to grasp influences of fire severities, thermal decomposition and degradation of gypsum boards and thermal deformation of light gauge steel in this study. Increase in board joints over 800 °C significantly affected temperature increase in wall cavities with increase in inflow of hot gas through the joints. The thermal properties of gypsum regarding to dehydration, water form gypsum and shrinkage were also obtained from material tests. Effective thermal properties of gypsum boards including the effect of thermal deformations for temperature increase estimation of drywall were also identified with the tests.
| Original language | English |
|---|---|
| Pages (from-to) | 215-224 |
| Number of pages | 10 |
| Journal | Journal of Environmental Engineering (Japan) |
| Volume | 84 |
| Issue number | 757 |
| DOIs | |
| Publication status | Published - Mar 2019 |
Keywords
- Drywall assemblies
- Fire severity
- Gypsum board
- Joint
- Thermal decomposition
- Thermal deformation