TIMpuls Grundlagenforschung zum Brandschutz im Holzbau: Abbrandraten, Schutzzeiten von Bekleidungen und Nachbrandverhalten von Holz

TIMpuls basic research on fire protection in timber construction: charring rate, protection times of claddings and post-burning behaviour of timber. This paper presents excerpts from first results and experiments within the TIMpuls research project on charring rate of timber, the performance of fire protection claddings and the post-burning and extinguishing behaviour of timber components. By means of small-scale tests, charring rates for various types of timber under standard fire exposure were determined. The investigations of the performance of fire protection systems comprise the state of the art in application and the classification criteria. Based on this, an explanation of the small-scale test setup and the experimental test results is given. Based on the test results an evaluation of the performance of the fire protection claddings is presented. Furthermore the behavior of timber structures in the decay phase of a fire is investigated. Here, boundary conditions for achieving self-extinguishing in a fire compartment, experiences with the extinguishing process and constructive measures to avoid cavity fires are discussed.