Inorganic polymer foams: transform from non-structural to structural upon fire
Paper
Paper/Presentation Title | Inorganic polymer foams: transform from non-structural to structural upon fire |
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Presentation Type | Paper |
Authors | Zhang, Zuhua (Author), Yang, Tao (Author), Wang, Hao (Author) and Yao, Xiao (Author) |
Editors | Epaarachchi, Jayantha A., Lau, Alan Kin-tak and Leng, Jinsong |
Journal or Proceedings Title | Proceedings of the International Society for Optical Engineering (SMN 2013) |
ERA Conference ID | 60496 |
Journal Citation | 8793, pp. 1-6 |
Number of Pages | 6 |
Year | 2013 |
Place of Publication | Bellingham, WA. United States |
ISBN | 9780819496300 |
Digital Object Identifier (DOI) | https://doi.org/10.1117/12.2027739 |
Conference/Event | 4th International Conference on Smart Materials and Nanotechnology in Engineering (SMN 2013) |
International Conference on Smart Materials and Nanotechnology in Engineering | |
Event Details | 4th International Conference on Smart Materials and Nanotechnology in Engineering (SMN 2013) Event Date 10 to end of 12 Jul 2013 Event Location Gold Coast, Australia |
Event Details | International Conference on Smart Materials and Nanotechnology in Engineering |
Abstract | An inorganic polymer is formed by dissolution of aluminosilicate solid materials in a strong alkaline activator solution, polymerization, gelation and/or crystallization. This material possesses many superior properties to normal organic polymers, such as high temperature resistant and non-flammable. This study aims to explore the possiblity of using inorganic polymers as a fire resistant building material. Inorganic polymer foams containing ∼8% of Na2O (mass ratio to solid materials) and 45-50% porosity (in volume) are synthesised from fly ash and slag and with sodium silicate solution as activator. The compressive strength, volumetric stability and phase features of the porous inorganic polymers before and after exposed to 100, 400 and 800oC temperatures are determined and analysed. After exposure to high temperature, the inorganic polymer foam without slag addition maintains the compressive strength at 100oC and 400oC and increases by 40% at 800oC. In contrast, the foam that contains 20% slag, although which has a much higher initial strength than the non-slag foam, can only maintain the strength at 100oC but lose strength dramatically at 400 and 800oC. The measurement of volumetric stability and XRD analysis indicate that the larger shrinkage of slag-containing foam and the decomposition of calcium silicate phases under high temperatures is accounting for the large strength loss. The current study shows a possibility to develop a kind of new building material with the function of transforming from nonstructural to structural upon fire. |
Keywords | fire resistance; fly ash; geopolymer; high temperature strength; inorganic polymer; shrinkage |
ANZSRC Field of Research 2020 | 400505. Construction materials |
401205. Experimental methods in fluid flow, heat and mass transfer | |
401609. Polymers and plastics | |
Public Notes | © (2013) Society of Photo-Optical Instrumentation Engineers (SPIE) |
Byline Affiliations | Centre of Excellence in Engineered Fibre Composites |
Nanjing University of Technology, China | |
Harbin Institute of Technology, China | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q216y/inorganic-polymer-foams-transform-from-non-structural-to-structural-upon-fire
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