| Summary: | 碩士 === 國立交通大學 === 機械工程系所 === 94 === Fifteen building materials were selected and tested in the Cone Calorimeter and the surface test, respectively, and they were classified by Japanese classification and CNS 6532 accordingly. Tests in the Cone Calorimeter were performed in the horizontal and vertical directions, respectively, under a fixed incident heat flux 50kW/m2. The results from these two orientations show some differences existed in HRR and ignition time. For the flammable material, the measured average values of HRRav_180s, and THR in the horizontal orientation are higher than those in vertical one. The ignition time in horizontal orientation is found shorter. Those indicate that the classification using Cone Calorimeter test in horizontal orientation is stringent. In addition, 7 materials from the previously mentioned 15 ones are selected to test in SBI and classified by EU classification. Correlation based on test results of these materials by using these three different standards are given and discussed. It is found that the smoke generation rate and crack appearance are not included in the performance evaluations in Japanese and EU classifications that causes the different ranks in different test methods. The obtained results in SBI test are compared with the simulated FIGRA from Cone data. It is found that the correlation between SBI and cone calorimeter test in horizontal orientation is better than the corresponding one with the cone calorimeter test in vertical orientation. The correlation between tdθ value of surface test and THR600s of SBI test finds that the value of R2 is 0.75. Correlation between the CA value of surface test and maximum 60s mean value of SPR of SBI test gives the value of R2 is 0.92, indicating that the correlation between the surface and SBI tests are relatively well. From the comparison between HRRav_180s of Cone Calorimeter test in vertical orientation and tdθ value of the surface test, R2 for the correlation is 0.95. The correlated R2 value between Cone Calorimeter test in horizontal orientation and the surface test is 0.96. Apparently, the correlation between the Cone Calorimeter and the surface tests is relatively well. The correlation for ignition time between cone calorimeter test in vertical direction and the one in surface test is relatively well as well.
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