Larry Galehouse, P.E., P.S.
Director, National Center for Pavement Preservation
25
2008 #2
First, its goal was
to review and refine material oriented research needs
related to pavement preservation. This includes
evaluation of the existing Pavement Preservation
Roadmap Problem Statements and Consortium on
Asphalt Research work plans and research. The group is
expected to review and make recommendations to
integrate related research activities as well as
coordinate activities and knowledge sharing with
SuperPave ETGs, TRB, NCHRP as well as within
Industry through AEMA, ISSA, ARRA and the Asphalt
Institute.
Second, the group is to proactively encourage adoption
of uniform national standards for Pavement
Preservation technologies through AASHTO and ASTM.
This would include promotion of advanced
performance based methods and specifications as
well as material related certification standards.
Suppliers
Contractors
Agencies
AASHTO Protocols for:
• Design
• Performance
• Inspection &
Acceptance
AASHTO specifications for:
• Chip Seal
• Cold In-place Recycling
• Cold Mixes
• Fog Seal
• Micro Surfacing
• Sand Seal
• Scrub Seal
• Slurry Seal
• Tack Coat
1. Residue Recovery and Testing
2. Design Group-Spray and Mixtures
3. Supplier Certification and QA
4. Recycling Emulsions
5. Research
6. Asphalt Emulsion Special Working
Group
1. Standard Practice for Certifying Suppliers of
Emulsified Asphalt – Provision (PP 71)
2. Recovering Residue from Emulsified Asphalt using
Low Temperature Evaporative Techniques – Provision (PP
72)
3. Determining Asphalt Binder Bond Strength by Means
of the Bitumen Bond Strength Test (BBS) – Provision (TP
91)
4. Performance-Graded Asphalt Binder for Surface
Treatments (Surface Performance Graded (SPG) Spec)– tabled
a. Develop AASHTO treatment standards
for micro surfacing and chip seals
b. Address customer need to update the
state of practice
c. Eliminated unnecessary testing
procedures and refine existing test
parameters.
Development of Treatment Standards for
AASHTO Require:
A. Design Specification
B. Design Practices
C. Construction Guide Specification
1. Standard Specification for Materials
for Micro Surfacing
2. Standard Practice for Micro Surfacing
Design
3. Standard Specification for Micro
Surfacing Construction
4. Standard Specification for Materials
for Chip Seals
5. Standard Practice for Chip Seal
Design
6. Standard Specification for Chip Seal
Construction
7. Chip Seal Practices
8. Revisions to Standard Specification
for Emulsified Asphalt (anionic), M 140
9. Revisions to Standard Specification for
Cationic Emulsified Asphalt, M 208
10.Revisions to Standard Specification for
Polymer-Modified Emulsified Asphalt,
M 316
AASHTO specifications for:
• Slurry Seals
• Tack Coats
Larry Galehouse, P.E., P.S.
Director
National Center for Pavement Preservation
2857 Jolly Road
Okemos, Michigan 48864
(517) 432-8220 • Fax: (517) 432-8223
email: [email protected]
www.pavementpreservation.org
www.tsp2.org