Structural behaviour of a prefabricated composite wall system made from rigid polyurethane foam and magnesium oxide board

Manalo, Allan (2013) Structural behaviour of a prefabricated composite wall system made from rigid polyurethane foam and magnesium oxide board. Construction and Building Materials, 41. pp. 642-653. ISSN 0950-0618

Abstract

This paper presents the structural behaviour of an emerging prefabricated wall system made up of glass fibre reinforced rigid polyurethane foam (PUF) and Magnesium Oxide (MgO) board. Full-scale wall specimens were prepared and tested under transverse bending, compression and shear. The results of the experimental investigation showed that the behaviour of the composite walls is governed by the strength of the MgO board. A complete interaction between the rigid PUF and MgO board was achieved using epoxy adhesives. In compression, a 17% lower failure load was measured for wall specimen with the MgO board attached to the wall frame with a 10 mm offset from the bottom plate than the wall with the sheathing flushed to the bottom plate. Under in-plane shear test, the single and two-panel composite wall systems exhibited similar shear stiffness and strength. The provision of tie-down anchor bolts increased the shear strength by almost 15% but has no significant contribution to the shear stiffness.
Finally, the results confirmed the potential of this composite wall system in residential modular construction.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: ©2013 Elsevier Ltd. All rights reserved. Published version restricted in accordance with the copyright policy of the publisher.
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - No Department
Date Deposited: 06 Feb 2014 10:38
Last Modified: 16 Jul 2014 01:41
Uncontrolled Keywords: composite walls; rigid polyurethane foam; magnesium oxide board; prefabrication; structural behaviour
Fields of Research : 09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering
09 Engineering > 0905 Civil Engineering > 090503 Construction Materials
09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: 10.1016/j.conbuildmat.2012.12.058
URI: http://eprints.usq.edu.au/id/eprint/24547

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