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Presentation
Effect of ultraviolet radiation on the physical and mechanical properties of polymer matrix
27th Biennial National Conference of the Concrete Institute of Australia (Concrete2015) in conjunction with the 69th RILEM Week (2015)
  • Wahid Ferdous
  • Allan Manalo
  • Thiru Aravinthan
  • Gerard Van Erp
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
Publication Date
Winter August 30, 2015
Location
Melbourne, Australia
Comments
Peer Reviewed Conference Paper
Citation Information
Wahid Ferdous, Allan Manalo, Thiru Aravinthan and Gerard Van Erp. "Effect of ultraviolet radiation on the physical and mechanical properties of polymer matrix" 27th Biennial National Conference of the Concrete Institute of Australia (Concrete2015) in conjunction with the 69th RILEM Week (2015)
Available at: http://works.bepress.com/wahid_ferdous/14/