Effect of ultraviolet radiation on the physical and mechanical properties of polymer matrix
Paper
Paper/Presentation Title | Effect of ultraviolet radiation on the physical and mechanical properties of polymer matrix |
---|---|
Presentation Type | Paper |
Authors | Ferdous, Wahid (Author), Manalo, Allan (Author), Aravinthan, Thiru (Author) and Van Erp, Gerard (Author) |
Journal or Proceedings Title | Proceedings of the 27th Biennial National Conference of the Concrete Institute of Australia (Concrete 2015) |
ERA Conference ID | 60206 |
Number of Pages | 7 |
Year | 2015 |
Place of Publication | Sydney, Australia |
ISBN | 9781943847709 |
Web Address (URL) of Paper | http://concrete2015.com.au/cms/wp-content/uploads/2015/08/Concrete-2015-CD-ROM-Final.pdf |
Conference/Event | 27th Biennial National Conference of the Concrete Institute of Australia (Concrete 2015) in conjunction with the 69th RILEM Week: Construction Innovations, Research into Practice |
Concrete Institute of Australia - Biennial Conference | |
Event Details | 27th Biennial National Conference of the Concrete Institute of Australia (Concrete 2015) in conjunction with the 69th RILEM Week: Construction Innovations, Research into Practice Parent Biennial Conference of the Concrete Institute of Australia Event Date 30 Aug 2015 to end of 02 Sep 2015 Event Location Melbourne, Australia |
Event Details | Concrete Institute of Australia - Biennial Conference |
Abstract | In recent years, the use of polymer concrete have become a promising choice in outdoor applications such as repair concrete structures, beams and slabs of small cross section and coating of railway sleepers, is subjected to degradation caused by photochemical reactions from solar ultraviolet (UV) radiation. Any small damage in polymer matrix can be detrimental to the overall mechanical performance of the structure as it binds and transfers load to the reinforcement. This paper deals with the effect of UV radiation on the physical and mechanical properties of epoxy resin based polymer matrix. Seven different mixes containing filler materials from 0 to 60% with an increment of 10% were exposed to UV radiation using accelerated laboratory testing. Specimens were subjected to 2000 hours of UV radiation by Xenon 2200 watt air cooled lamp in the sunset XLS chamber and subsequently weighed, examined by microscope and mechanically tested. Surface degradation in the form of discoloration were observed by microscopic observation. It was found that, the loss of specimen’s weight decreased with the increase of filler materials in the mix. Significant decrease of flexural strength were observed in the mixes containing filler volume up to 20%. However, no reduction of flexural strength were noticed for the higher filler (≥ 30% filler) containing mixes indicating the filler can helps to preserve the structural performance by absorbing or blocking UV radiation before it reaching the chromophores in polymer matrix. |
Keywords | Epoxy resin, Polymer matrix, Ultraviolet radiation, Physical and mechanical properties |
ANZSRC Field of Research 2020 | 400510. Structural engineering |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Centre of Excellence in Engineered Fibre Composites |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q38ww/effect-of-ultraviolet-radiation-on-the-physical-and-mechanical-properties-of-polymer-matrix
2194
total views9
total downloads4
views this month0
downloads this month