Asphalt Binder Grading System by Indirectly Estimated Parameters and Relationship to Performance Related Properties of Asphalt Mixture

There have been initiatives to improve the current use of the grading system in Thailand by replacing it with the SUPERPAVE grading system. Unfortunately, such a system requires complex and expensive equipment, which is unavailable in Thailand. The knowledge in understanding the implementation of the system is also limited. Moreover, the SUPERPAVE specification is particularly based on pavement conditions in the USA. Therefore, development of a performance grading system using indirectly estimated parameters related to pavement performance is proposed in this study. According to the existing pavement conditions in Thailand, the eligible performance related properties are examined and acceptable limits for the acceptance of asphalt cement are determined. Additionally, the preparation of asphalt mixtures from newly graded asphalt cement is investigated for performance related properties in Thai traffic and climate conditions. After the validation of such a system, it was found that the proposed performance grading system can be satisfactorily used to classify the binders by performance. Results of the proposed system are also comparable with the SUPERPAVE system. Finally, the proposed system can be used as a transition before obtaining sufficient equipment and gaining sufficient understanding for SUPERPAVE implementation without using any complex and expensive equipment.

Language

  • English

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Filing Info

  • Accession Number: 01487110
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 5 2013 3:32PM