Tulekahjuohtu

Tulekahjuohtu, also known as fire resistance, refers to the ability of a material to withstand high temperatures without significant degradation or loss of structural integrity. This property is crucial in various applications, including construction, automotive, and aerospace industries, where materials are exposed to extreme heat. Fire resistance is typically measured by the time a material can withstand a specified temperature before it fails or degrades. Common methods to assess fire resistance include standard fire tests such as the ASTM E119 and ISO 834 fire resistance tests, which subject materials to controlled heat and flame exposure.

Materials with high fire resistance are often used in fire-rated assemblies, such as fire doors, fire walls, and fire-resistant ceilings. These materials help contain fires, prevent their spread, and provide occupants with valuable time to evacuate safely. Common materials with good fire resistance include concrete, gypsum board, and certain types of steel. Advances in materials science continue to develop new fire-resistant materials, enhancing safety and durability in high-risk environments.