Crack reflection in sprayed seals: the search for a binder test

The surface life of a sprayed seal is often determined by age-related criteria, such as the resistance to long-term effects of heat and air (durability) of the exposed bitumen film. However, in many cases the integrity of a sprayed seal and its ability to protect the underlying pavement is affected in a much shorter time frame due to the reflection of underlying pavement cracks through the sprayed seal. It is therefore critical to be able to understand the capacity of a sprayed seal binder to resist the reflection of cracks. This paper discusses the development of a binder test that can provide a convenient means of determining the relative performance of bituminous binders in resisting the reflection of cracks through a sprayed seal. Such a test will provide seal designers with a more rational method of selecting binders where protection against crack reflection is sought. (a) For the covering record of the conference, please refer to ITRD no. E218387.

• Corporate Authors:

  HALLMARK CONFERENCE AND EVENTS

  PO BOX 84
  HAMPTON,   Australia  3188
• Authors:
  • WILSON, G
  • FERNANDO, T
  • BUDIJA, M
  • URQUHART, R
• Publication Date: 2009-10

Language

• English

Media Info

• Pagination: 7P (DAY 2, SESSION 2)
• Monograph Title: Australian Asphalt Paving Association thirteenth international flexible pavements conference, Sunday 11th - Wednesday 14th October, Surfers Paradise, Queensland, Australia

Subject/Index Terms

• TRT Terms: Binders; Building materials; Cracking; Pavements; Performance; Seal coats; Tests
• Subject Areas: Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 01153053
• Record Type: Publication
• Source Agency: ARRB
• Files: ITRD, ATRI
• Created Date: Mar 23 2010 9:13AM