abstract |
The invention relates to a fire barrier (1) for the manufacture of fire-resistant joints consisting of a core (2) comprising rock fibers (4) and an outer shell (3) resistant to high temperatures. Characteristically, the core (2) further comprises, in intimate mixture with the rock fibers (4) and in a minority proportion, high temperature resistant crimped fibers (5) having a length greater than or equal to 40 mm. , and said rock fibers (4) and support fibers (5) are in the form of one or more carded ribbons arranged parallel to each other in the longitudinal direction (L) of said bead (1). |