| 摘要 |
<p>The invention concerns an element consisting essentially of mineral wool exhibiting enhanced reaction to fire. Such an element is in particular shaped in the form of a panel and is used for constructing air ducts. The panels comprise a mineral wool core, said core being formed with glass fibres which act as wool constituents. The glass fibres of the inventive element have a diameter substantially greater relative to the glass fibres currently used for making panels or ducts for similar purposes. The glass fibres used in the invention have a fineness index of value ranging between 5.8 ? 0.5 for 6 grams. The invention also concerns a method for making an air duct from said panels.</p> |
