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Expert Task Group on Asphalt Mixtures & Construction; Asphalt Binders; and Models Technology August Attachment D Superpave Standards and Specifications

(ppt version 66 kb)

Slide 1

Superpave Standards and Specifications

  • Haleem
  • SEPTEMBER 2001

Slide 2

How well is Superpave doing?

  • The level of acceptance of Standards
    and specifications by the AASHTO
    Member Departments is one major indicator.
  • The national survey is, of course,
    another indicator.

Slide 3

SHRP produced 30 standards applicable to HMA

  • 18 relate directly to Superpave.
  • Remaining Standards advance the HMA
  • State Materials Engineers adopted these
    Standards provisionally over a period
    of 5 years, 1993-98.

Slide 4

AASHTO Provisional Standards
The Rules

  • The provisional have a maximum life
    of 8 years. When that expires, they must
    be moved to become Full Standards or
  • The first batch of these standards was
    adopted in 1993.
  • The first batch is due to be balloted this
    year for the change of Status to full standards.

Slide 5

The Status of Superpave Standards

  • 4 standards have already become
    full standards.
  • 8 are due to become full standards
    in December.
  • The remaining 6 will be moved to the
    full standard status within the next 3 years.

Slide 6

Why do the Superpave standards
have such wide acceptance

ETG s played a vital role.
  1. Continued Technical input in
    refining the standards.
  2. Accelerated the acceptance

Slide 7


  • ETGs are well respected by the member
    departments. Members feel that the ETG
    Structure should be preserved and used
    as a way to do business in the future.

  • AASHTO Subcommittee on Materials feels
    that a full time AASHTO Staff person is
    needed to support all future materials Standards.
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Updated: 04/07/2011

United States Department of Transportation - Federal Highway Administration