Abstract
The paper deals with the fire resistance of non-structural walls made of solid plaster blocks. Experimental tests were performed according to the indications of Brazilian standard NBR 10636 [1], with a heat exposure time of 120 min, in three walls with thicknesses of 5, 7 and 10 cm. The results indicate that the plaster walls have great fire resistance: the maximum temperature measured on the unexposed face was 75 ℃, occurred in the 5 cm thick sample. The 5 cm wall does not comply with the integrity and structural stability tests required by the above-mentioned standard during the heat exposure time, therefore, it is assumed that it can resist a fire exposure time of 90 min or less. The walls 7 and 10 cm thick comply with all criteria required by standard (thermal insulation, integrity and structural stability) during the heat exposure time, therefore, it can resist a fire exposure time of 120 min or higher.
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Acknowledgment
The authors are grateful for the research support granted by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES), the Conselho Nacional de Pesquisa e Desenvolvimento Científico (CNPq), the Federal University of Pernambuco (Recife/Brazil), and are also grateful to the company Lajeiro Gesso Ltda that supplied the plaster blocks and the wall mounting.
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de Sá, R.T., Feitósa, C.J.D., Bezerra, J.J., Pires, T.A.C., Rêgo Silva, J.J., Alencar, C.O.S. (2020). Performance of Plaster Walls Exposed to High Temperatures. In: Piloto, P., Rodrigues, J., Silva, V. (eds) Advances in Fire Safety Engineering. CILASCI 2019. Lecture Notes in Civil Engineering, vol 1. Springer, Cham. https://doi.org/10.1007/978-3-030-36240-9_9
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DOI: https://doi.org/10.1007/978-3-030-36240-9_9
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