Performance evaluation of firestop for partitioning of hydraulic and electrical shafts

ABSTRACT

Fire safety design is necessary. Buildings are advancing in height, which demands on installations, forcing the construction industry to develop systems capable of preventing the spread of fire and ensuring fire safety to users. Through the Brazilian Performance Standard (ABNT NBR 15575) and state fire department regulations, new fire safety requirements were required. This paper analyzed the performance of five fire stop systems applied to hydraulic and electrical passages, installed in a full-scale wall, in a fire situation, according to the ISO 834 curve. Through the study, it was found that the systems that achieved a 180 minutes fire resistance (FR) were that ones have cementitious mortar in their composition, surpassing the FR of those composed by ablative rockwool plate, indicating that the most economical systems had the best performance. The fire seals were satisfactory regarding the horizontal compartmentalization criterion, with no significant difference between systems.

Keywords
Fire sealing; Passive protection; Fire Safety; Building partitioning