Abstract
ABSTRACT Two fireproofing materials are studied. These materials cannot be used above 1000—1100°C due to their loss of thermal and mechanical properties. Moreover, at such temperatures, their permeability towards hot (and/or) toxic gases increases dramatically. Results of severe thermal solicitations (based on new European standards) are presented herein. They confirm that the melting of at least one of the compounds completely modifies the thermal transfer conditions. Above a critical temperature, the melting front will diffuse through the material and will affect its permeability as well as its mechanical properties and thickness. Thus, development of new fireproofing materials (presenting a real high temperature resistance) imposes to master high temperature shrinkage. An optimized product is presented herein.
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