Influence on Rheological Properties of Modified Bitumens at High Temperatures

Modified bituminous materials can bring real benefits to highway maintenance/construction, in terms of better and longer lasting roads, and savings in total road life costing. The use of polymers for the modification of bitumen in road paving applications has been growing rapidly over the last decade as it can enhance and improved the properties of bitumen. This paper describes the polymer modification of two penetration grade bitumens with different concentration of ethylene vinyl acetate (EVA). The rheological characteristics of the polymer modified bitumens were analyzed by means of conventional as well as dynamic mechanical analysis using a dynamic shear rheometer. Dynamic mechanical analysis testing performed at 46oC, 52oC, 58oC, 64oC and 70oC at a frequency of 10 rad/sec. The results of the investigation indicate that the rheological properties such as complex viscosity, complex modulus, loss modulus and storage modulus increase as the polymer concentration increases.

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• Corporate Authors:

  Universidade Presbiteriana Mackenzie

  Rua da Consolacao, 930
  , Sao Paulo  Brazil 
• Authors:
  • Mehndiratta, H C
  • Kumar, Praveen
  • Singh, Lakshman
• Conference:
  • 2005 International Symposium on Pavement Recycling
  • Location: Sao Paulo , Brazil
  • Date: 2005-31-4 to 2005-31-6
• Publication Date: 2005

Language

• English

Media Info

• Media Type: CD-ROM
• Features: Figures; References; Tables;
• Pagination: 17p
• Monograph Title: 2005 International Symposium on Pavement Recycling
• Serial:
  • 2005 International Symposium on Pavement Recycling
  • ISSN: 1807-9458

Subject/Index Terms

• TRT Terms: Asphalt mixtures; Asphalt pavements; Bitumen; Dynamic modulus of elasticity; Mechanical analysis; Polymer asphalt; Polymers; Rheological properties; Viscosity
• Subject Areas: Design; Highways; Maintenance and Preservation; Pavements; I22: Design of Pavements, Railways and Guideways; I60: Maintenance;

Filing Info

• Accession Number: 01083055
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 27 2007 8:25AM