Mesquita, L.M.R.Piloto, P.A.G.Vaz, M.A.P.2010-02-052010-02-0520092009Mesquita, L.M.R.; Piloto, P.A.G.; Vaz, M.A.P. (2009). Efficiency evaluation of intumescent coatings used for fire protection: comparison between numerical method and experimental results. In IRF'2009 Integraty Reability and Failure: challanges and Oportunities. Porto, Portugal. p.537-538http://hdl.handle.net/10198/1720An experimental study to assess the performance of water-based intumescent paints, used as a passive fire protection material, is presented. The specimens are steel plates coated with two different paints, three dry film thicknesses and tested with two different radiant heat fluxes in a cone calorimeter. The efficiency of this protection is attained regarding the substrate temperature evolution. A comparison between these experimental results and the ones obtained from a numerical model is presented. The numerical model considers the coating decomposition, and models the protection by two layers, the reacted and the unreacted layer (Mesquita et al, 2009).engconference object2010-02-01