Thermal behaviour of reaction intumescent paint used for passive protection of ...

• Autor(es): Piloto, P.A.G. ; Mesquita, L.M.R.
• Data: 2005
• Identificador Persistente: http://hdl.handle.net/10198/2130
• Origem: Biblioteca Digital do IPB
• Assunto(s): Steelwork; Intumescent paint; Elevated temperature
• Tipo de Documento: Artigo
• Idioma: Português

Descrição

Steel structures often need some passive protection measures for the validation of national and international regulations. These regulations present standard and simplified methods for the design of steel structures when exposed to fire conditions. One of this formulae presented in Eurocode 3 has been determined based on simplified hypothesis for material protection behaviour, considering uniform temperature distribution across steel section, constant thermal conductivity and constant thickness for material insulation. This work presents preliminary experimental tests for determining the thermal insulation behaviour (thermal conductivity) as function of the mean insulation temperature evolution [1]. Specimens have been coated and heated with slow heating rate, 800 [ºC/h], and temperatures have been recorded on steelwork IPE100 profiles. Results are in good agreement with other numerical simulations proposed by Tan et al for other intumescent protection system [2].