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Open AccessArticle

Determining the Impact of High Temperature Fire Conditions on Fibre Cement Boards Using Thermogravimetric Analysis

1
Faculty of Civil Engineering, Vilnius Gediminas Technical University, LT10223 Vilnius, Lithuania
2
Faculty of Environmental Engineering, Vilnius Gediminas Technical University, LT10223 Vilnius, Lithuania
*
Author to whom correspondence should be addressed.
Symmetry 2020, 12(10), 1717; https://doi.org/10.3390/sym12101717
Received: 21 September 2020 / Revised: 12 October 2020 / Accepted: 16 October 2020 / Published: 18 October 2020
(This article belongs to the Special Issue Materials Science: Synthesis, Structure, Properties)
When exposed to temperatures that are progressively and rapidly raised, large dimension fibre cement boards tend to crack. This occurrence is analysed and explained for a specific issue of asymmetric growth of a curvilinear crack in high temperatures. This phenomenon occurred while performing Single Burning Item (SBI) experiments at fire loads which are higher than those used in countries of the European Union, which better reflect fire events that may occur in high-rise buildings. In such conditions, fibre cement boards crack, allowing the fire to reach the thermal insulating material which then combusts, thereby helping to spread the conflagration to upper floors. This experiment investigated the temperatures at which fibre cement boards crack, and why. Thermal analysis methods and thermogravimetric experiments were conducted on the fibre boards, followed by X-ray phase analysis investigations. During this phase, X-ray structural analysis was performed while the fibre cement was exposed to temperatures of 1000 °C. The article also presents ongoing change results when heating only composite fibre-cement board materials; phase changes that take place in high temperatures are discussed. View Full-Text
Keywords: fibre-cement; ventilated facade; explosive destruction; thermogravimetric analysis; X-ray phase analysis in high temperature fibre-cement; ventilated facade; explosive destruction; thermogravimetric analysis; X-ray phase analysis in high temperature
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MDPI and ACS Style

Veliseicik, T.; Zurauskiene, R.; Valentukeviciene, M. Determining the Impact of High Temperature Fire Conditions on Fibre Cement Boards Using Thermogravimetric Analysis. Symmetry 2020, 12, 1717.

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