Combined fire protection covers

摘要

Fire protection became more and more vital in the construction industry. One of the most efficient methods is the passive fire protection. Different kinds of passive fire protection covers and building materials were combined and tested in the present study. Steel, wood and concrete specimens were coated by cover made from fireproof plasterboard, gypsum fibreboard or mineral board and rock wool filling. Test covers were heated up to 800 degrees C and the temperature was measured both inside and outside the covers. The behaviour of the fibreboards was different during the tests. When choosing the proper fire protection cover, we need to consider how the protected structural material reacts to high temperature. In case of combustible building materials, it is essential to keep the temperature low inside the cover, because if the temperature reaches ignition temperature, the combustible structural material ignites, regardless if the cover is intact.