Abstract
The fire retardancy of wood impregnated with a mixture of ammonium dihydrogen phosphate and ammonium sulfate recovered from exhausted fire extinguishing powder was assessed. Impregnated specimens recorded a 14.3% total weight loss due to combustion, as opposed to 93.8% for the untreated ones. Treated specimens also showed a significantly lower burning time and maximum burning rate as well as higher sustainable ignition time than untreated ones.
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Acknowledgements
The authors would like to thank Mr. N. Triantafyllopoulos for his assistance in conducting the impregnation experiments and also Mr. G. Archontis and Mr. Th. Stamou (directors of MIRTEC S.A.) for their support with this project.
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Tsolakis, P.K., Lykidis, C. Increasing fire retardancy of wood by impregnation with inorganic salts recovered from exhausted fire extinguishing powder. Eur. J. Wood Prod. 77, 1225–1227 (2019). https://doi.org/10.1007/s00107-019-01456-1
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DOI: https://doi.org/10.1007/s00107-019-01456-1