Development of Passive Fire Protection Mortars

During a fire event, the stability of steel structures may be compromised, and structural collapse occur due to loss their mechanical resistance as temperature increases. One solutions reduce this problem is protection with coating using enhanced fire-resistant mortars. This paper reports detailed experimental work aiming develop gypsum cement-based mortars for passive evaluate composition’s effect in final thermal performance. Two types specimens were tested: (i) small composed mortar (10 mm thick) one plate (ii) square section short tubular columns 20 coating. The evaluation was carried out by (a) measuring gradient between exposed surface protected under high temperatures mortar-steel interface (b) assessing columns. It concluded that compositions binder present better insulation than cementitious compositions. Additionally, introduction nano- microparticles silica still slightly improved tested