A cone calorimeter, a standard device to measure the fire reaction properties of materials, is modified in this study to investigate its potential to replace the cylindrical furnace test method to assess the combustibility of cladding materials used in buildings. The modification allows cladding materials to be evaluated under conditions closer to their end-use configuration than the current testing condition in the cylindrical furnace test. In addition, the modified cone calorimeter method provides more quantitative data on the fire reaction properties of the cladding materials compared to the passed/failed indicator in the cylindrical furnace test. Comparative studies between modified cone calorimeter and cylindrical furnace test results for four types of cladding with different combustibility properties are performed. The surface temperature, time-to-ignition, and flaming duration values measured for the claddings using the two test methods are similar, leading to the same classification based on AS 1530.1 standard. Other fire reaction properties of the claddings can be measured using the modified cone calorimeter method, which is not possible with the cylindrical furnace test, including mass loss rate, heat release rate, and smoke production, which are particularly dependent on the formation of a ceramic-like carbonaceous layer of tested samples.

中文翻译：

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评估包层的可燃性：改进的锥形量热法和圆柱形炉试验的比较研究

锥形量热仪是一种测量材料火灾反应特性的标准设备，在本研究中进行了改进，以研究其替代圆柱形炉测试方法的潜力，以评估建筑物中使用的覆层材料的可燃性。该修改允许在比圆柱形炉测试中的当前测试条件更接近其最终使用配置的条件下评估包覆材料。此外，与圆柱形炉试验中的通过/失败指标相比，改进的锥形量热法提供了更多关于包层材料火灾反应特性的定量数据。对四种具有不同可燃性的包层进行了改进的锥形量热仪和圆柱形炉测试结果的比较研究。表面温度，使用两种测试方法测量的包层的点火时间和燃烧持续时间值相似，导致基于 AS 1530.1 标准的相同分类。包层的其他火灾反应特性可以使用改进的锥形量热仪方法测量，这在圆柱形炉测试中是不可能的，包括质量损失率、热释放率和烟雾产生，这些特别依赖于陶瓷的形成- 测试样品的碳质层。