Thermal conductivity of gypsum boards beyond dehydration temperature

作者: K. Ghazi Wakili , M. Koebel , T. Glaettli , M. Hofer

DOI: 10.1002/FAM.2234

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摘要: Summary The thermal conductivity of gypsum plasterboard at temperatures beyond its dehydration/calcination temperature is, besides the effective heat capacity, main parameter defining increase in transfer when board is submitted on one side to a strongly transient boundary condition. The present study investigates significant rise dehydrated plaster between 200 and 800 °C, reaching initial hydrated value 0.3 W/(m·K). It shown that reason for this independent radiative convective transfers only due an enhancement conduction single crystals induced by effect similar sintering. Copyright © 2014 John Wiley & Sons, Ltd.

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