Medium-Scale Fire Resistance Testing of Timber Structures with Composite Cement Fibre Materials

The combustibility of natural wood presents a negative impact for using this material in buildings. Timber elements can be cladded with boards made of non-combustible materials. This study represents a group of options for increasing the resistance of timber against the effects of fire and the possi...

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Main Authors: Tomáš Žajdlík, Karel Šuhajda, David Průša
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Buildings
Subjects:
Online Access:https://www.mdpi.com/2075-5309/13/2/527
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author Tomáš Žajdlík
Karel Šuhajda
David Průša
author_facet Tomáš Žajdlík
Karel Šuhajda
David Průša
author_sort Tomáš Žajdlík
collection DOAJ
description The combustibility of natural wood presents a negative impact for using this material in buildings. Timber elements can be cladded with boards made of non-combustible materials. This study represents a group of options for increasing the resistance of timber against the effects of fire and the possibility of slowing down the effect of thermal degradation of wood. The aim of this study is focused on an experimental testing of structures with timber elements protected by cement fibre boards as a non-combustible fire retardant. Cement fibre boards are fibre-reinforced composite materials used for systems of dry constructions. These boards present the highest degree of fire reaction class (A1). The behaviour of the structure, loaded by the effects of fire, was monitored during the experiment. The specimen was tested with reduced dimensions. The temperature loading corresponded to the procedure according to the standards. The final fire resistant (FR) results were evaluated in accordance with the requirements for the selected limit states of FR. This was assessed based on the measured temperatures and the whole condition of the tested specimen. The specimen fulfilled the fire-separating function of the structure for the classification times.
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spelling doaj.art-3d98364d74be42dea97c6eef2bfdbfc62023-11-16T19:33:59ZengMDPI AGBuildings2075-53092023-02-0113252710.3390/buildings13020527Medium-Scale Fire Resistance Testing of Timber Structures with Composite Cement Fibre MaterialsTomáš Žajdlík0Karel Šuhajda1David Průša2Institute of Building Structures, Faculty of Civil Engineering, Brno University of Technology, Veveří 331/95, 602 00 Brno, Czech RepublicInstitute of Building Structures, Faculty of Civil Engineering, Brno University of Technology, Veveří 331/95, 602 00 Brno, Czech RepublicInstitute of Building Structures, Faculty of Civil Engineering, Brno University of Technology, Veveří 331/95, 602 00 Brno, Czech RepublicThe combustibility of natural wood presents a negative impact for using this material in buildings. Timber elements can be cladded with boards made of non-combustible materials. This study represents a group of options for increasing the resistance of timber against the effects of fire and the possibility of slowing down the effect of thermal degradation of wood. The aim of this study is focused on an experimental testing of structures with timber elements protected by cement fibre boards as a non-combustible fire retardant. Cement fibre boards are fibre-reinforced composite materials used for systems of dry constructions. These boards present the highest degree of fire reaction class (A1). The behaviour of the structure, loaded by the effects of fire, was monitored during the experiment. The specimen was tested with reduced dimensions. The temperature loading corresponded to the procedure according to the standards. The final fire resistant (FR) results were evaluated in accordance with the requirements for the selected limit states of FR. This was assessed based on the measured temperatures and the whole condition of the tested specimen. The specimen fulfilled the fire-separating function of the structure for the classification times.https://www.mdpi.com/2075-5309/13/2/527cement fibre boardtimber structurefire resistancestructural partthermal degradationfire exposure
spellingShingle Tomáš Žajdlík
Karel Šuhajda
David Průša
Medium-Scale Fire Resistance Testing of Timber Structures with Composite Cement Fibre Materials
Buildings
cement fibre board
timber structure
fire resistance
structural part
thermal degradation
fire exposure
title Medium-Scale Fire Resistance Testing of Timber Structures with Composite Cement Fibre Materials
title_full Medium-Scale Fire Resistance Testing of Timber Structures with Composite Cement Fibre Materials
title_fullStr Medium-Scale Fire Resistance Testing of Timber Structures with Composite Cement Fibre Materials
title_full_unstemmed Medium-Scale Fire Resistance Testing of Timber Structures with Composite Cement Fibre Materials
title_short Medium-Scale Fire Resistance Testing of Timber Structures with Composite Cement Fibre Materials
title_sort medium scale fire resistance testing of timber structures with composite cement fibre materials
topic cement fibre board
timber structure
fire resistance
structural part
thermal degradation
fire exposure
url https://www.mdpi.com/2075-5309/13/2/527
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