A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Influence of environmental parameters on the thermal behaviour of the intumescent fire seals
Determination and classification of the fire resistance of various elements in building structures are obtained through testing of newly produced elements. The expected lifetime of many parts of a building can be very long. All building elements are subjected to different types of degradation during their lifetime. Thus, the fire resistance of the elements can deteriorate over time. The degree of the deterioration of the various types of material in these elements varies due to material properties and surrounding conditions such as relative humidity, temperature, UV radiation and acidic environment. Intumescent fire seals and coatings are typically used in passive fire protection of building elements. Degradation of a fire seal can result in a lower expansion than the desired expansion and/or affect the reaction temperature. These changes in a fire seal can reduce the fire resistance of the building element, e.g. by allowing smoke and combustion gases to pass through the gaps between two elements which could potentially result in integrity failure. The purpose of this paper is to present results of an investigation related to the influence of different environmental parameters on the behaviour of intumescent fire seals with respect to fire resistance. Two types of intumescent fire seals, graphite based and sodium silicate based, were investigated. Parameters of thermal behaviour that were studied include reaction time, reaction temperature and expansion of the fire seals. In order to determine the expandability and reaction temperature of fire seals, a measurement setup was developed. The measurement setup provided a uniform temperature around the samples and made it possible to measure the expansion of the fire seals using a video measurement gauge. The results of this study indicate that the reaction temperature of the fire seals is less sensitive to simulated environmental parameters than their expandability. The expandability of the fire seals in this study was affected up to 50% in comparison to the reference fire seals.
Influence of environmental parameters on the thermal behaviour of the intumescent fire seals
Determination and classification of the fire resistance of various elements in building structures are obtained through testing of newly produced elements. The expected lifetime of many parts of a building can be very long. All building elements are subjected to different types of degradation during their lifetime. Thus, the fire resistance of the elements can deteriorate over time. The degree of the deterioration of the various types of material in these elements varies due to material properties and surrounding conditions such as relative humidity, temperature, UV radiation and acidic environment. Intumescent fire seals and coatings are typically used in passive fire protection of building elements. Degradation of a fire seal can result in a lower expansion than the desired expansion and/or affect the reaction temperature. These changes in a fire seal can reduce the fire resistance of the building element, e.g. by allowing smoke and combustion gases to pass through the gaps between two elements which could potentially result in integrity failure. The purpose of this paper is to present results of an investigation related to the influence of different environmental parameters on the behaviour of intumescent fire seals with respect to fire resistance. Two types of intumescent fire seals, graphite based and sodium silicate based, were investigated. Parameters of thermal behaviour that were studied include reaction time, reaction temperature and expansion of the fire seals. In order to determine the expandability and reaction temperature of fire seals, a measurement setup was developed. The measurement setup provided a uniform temperature around the samples and made it possible to measure the expansion of the fire seals using a video measurement gauge. The results of this study indicate that the reaction temperature of the fire seals is less sensitive to simulated environmental parameters than their expandability. The expandability of the fire seals in this study was affected up to 50% in comparison to the reference fire seals.
Influence of environmental parameters on the thermal behaviour of the intumescent fire seals
Adl-Zarrabi, Bijan (author)
2009
10 Seiten, 7 Bilder, 4 Tabellen, 7 Quellen
Conference paper
Storage medium
English
Influence Of Environmental Parameters On The Thermal Behaviour Of The Intumescent Fire Seals
| British Library Conference Proceedings | 2009
Influence Of Environmental Parameters On The Thermal Behaviour Of The Intumescent Fire Seals
| British Library Conference Proceedings | 2009
| British Library Online Contents | 1994
British Library Online Contents | 1993
| British Library Online Contents | 1995