Thermal performance of magnesium oxide wall board using numerical modelling

Rusthi, Mohamed, Poologanathan, Keerthan, Mahendran, Mahen, & Ariyanayagam, Anthony Deloge (2016) Thermal performance of magnesium oxide wall board using numerical modelling. In Harada, Kazunori, Matsuyama, Ken, Himoto, Keisuke, Nakamura, Yuji, & Wakatsuki, Kaoru (Eds.) Fire Science and Technology 2015: The Proceedings of 10th Asia-Oceania Symposium on Fire Science and Technology, Springer, Tsukuba, Japan, pp. 667-676.

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Fire resistance of light-gauge steel frame (LSF) walls can be enhanced by lining them with single or multiple layers of wall boards. This research is focused on the thermal per-formance of Magnesium Oxide (MgO) wall boards in comparison to the conventional gypsum plasterboards exposed to standard fire on one side. Thermal properties of MgO board and gypsum plasterboard were measured first and then used in the finite element heat transfer models of the two types of panels. The measured thermal property results show that MgO board will perform better than the gypsum plasterboards due to its higher specific heat values at elevated temperatures. However, MgO board loses 50% of its ini-tial mass at about 500 °C compared to 16% for gypsum plasterboard. The developed finite element models were validated using the fire test results of gypsum plasterboards and then used to study the thermal performance of MgO board panels. Finite element analysis re-sults show that when MgO board panels are exposed to standard fire on one side the rate of temperature rise on the ambient side is significantly reduced compared to gypsum plas-terboard. This has the potential to improve the overall thermal performance of MgO board lined LSF walls and their fire resistance levels (FRL). However, full scale fire tests are needed to confirm this. This paper presents the details of this investigation and the results.

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ID Code: 93997
Item Type: Conference Paper
Refereed: Yes
Additional URLs:
Keywords: Thermal performance, Magnesium oxide board, Finite element analysis, LSF walls
DOI: 10.1007/978-981-10-0376-9_68
ISBN: 9789811003752
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Structural Engineering (090506)
Divisions: Current > Schools > School of Civil Engineering & Built Environment
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2017 Springer Science+Business Media Singapore
Copyright Statement: The final publication is available at Springer via
Deposited On: 21 Mar 2016 22:58
Last Modified: 02 Feb 2017 09:14

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