Evaluation of UV Aging Resistance of Asphalt Modified with Lignosulfonate

Asphalt mixture is widely used in the field of pavement construction owing to its excellent road performance. However, under the condition of ultraviolet (UV) light and other factors, it is easy for asphalt to age, then the service life of asphalt would be reduced. In order to increase durability of pavement for long-life road application, it is vital to improve UV anti-aging properties of asphalt. Lignosulfonate (LS) is a by-product of chemical industry, which has excellent UV absorbing ability owing to the benzene ring structure. Through melt blending, LS was added into asphalt, and the effect on anti-UV aging properties were researched by physical properties. The results showed that the rangeabilities of physical properties of LS modified asphalt (LMA) were smaller than pristine asphalt (PA), which demonstrated that LS was an ideal additive for enhancing anti-UV property of asphalt observably.

Language

  • English

Media Info

  • Media Type: Web
  • Features: References;
  • Pagination: pp 534-542
  • Monograph Title: International Conference on Road and Airfield Pavement Technology 2023

Subject/Index Terms

Filing Info

  • Accession Number: 01916666
  • Record Type: Publication
  • ISBN: 9780784485255
  • Files: TRIS, ASCE
  • Created Date: Apr 25 2024 9:33AM