During the fire test, the outer surface temperature of the ceiling, including the concrete surface temperature, as well as the temperature of water and vapor overflowing from concrete cracks, were monitored using infrared thermography. The infrared images revealed that the temperature at the concrete cracks was higher, which can be attributed to the high temperature water and vapor overflowing from the cracks. Fig. 14 presents a comparison between the temperature of water and vapor at the cracks obtained from infrared images and the temperature of the concrete surface measured by the thermocouple. At 30 min, the temperature of water and vapor at the concrete cracks began to rise slowly, while the concrete surface temperature of the ceiling was close to the ambient temperature. At 60 min, the temperature of water and vapor at the concrete cracks rose rapidly, reaching 82.8°C in a short time, and was maintained at a higher temperature thereafter. The temperature change of the ceiling surface monitored by infrared thermography was consistent with the macroscopic test phenomenon on the outer surface of the ceiling. Specifically, at 27 min, the water overflowing from the concrete cracks on the ceiling gradually increased, as shown in Fig. 5(a), and at 58 min, boiling water vapor began to overflow from the concrete cracks on the ceiling, as shown in Fig. 5(d)

Please polish the following paragraph according to the style of SCI journalsDuring the fire test the infrared thermography monitored the temperature of the outer surface of ceiling including the concr

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