Efficiency evaluation of intumescent coatings used for fire protection: comparison between numerical method and experimental results
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abstract
An 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).
