Road Pavement Forum May 2006 REVISION Technical

1
Road Pavement ForumMay 2006

• REVISION
• Technical Guideline The use of Modified
  Bituminous Binders in Road Construction (TG 1
  2001)

2
Revision Process

• Identify issues w.r.t current specifications
• Review international specifications
• Identify other needs w.r.t guidelines

3
Document Structure

• HSE
• Product composition properties
• Product manufacture
• Modified binder classification system
• Product requirements
• Selection criteria
• Influence on design methodologies
• Construction
• Quality assurance
• Protocol for introduction of new modifiers
• Appendix Sampling test methods

4
Document Structure

• HSE
• Product composition properties
• Product manufacture
• Modified binder classification system
• Product requirements
• Selection criteria
• Influence on design methodologies
• Construction
• Quality assurance
• Protocol for introduction of new modifiers
• Appendix Sampling test methods

5
Classification System

• Expanded to include other modifier types (and
  applications)
• Hydrocarbon modifiers
• FT wax
• Microsurfacings
• Bond coats
• Crack sealants!

6
Document Structure

• Modified binder composition
• Product properties
• Modified binder classification system
• Product requirements
• Selection criteria
• Influence on design methodologies
• Construction
• Quality assurance
• Protocol for introduction of new modifiers
• HSE
• Appendix Sampling test methods

7
Product Requirements

• Collection and analysis of historical results of
  all modified classes
• Tightening up existing limits
• Adding upper (or lower) limits
• Adhesion criteria
• Addressing Report Only criteria

8
Document Structure

• Modified binder composition
• Product properties
• Modified binder classification system
• Product requirements
• Selection criteria
• Influence on design methodologies
• Construction
• Quality assurance
• Protocol for introduction of new modifiers
• HSE
• Appendix Sampling test methods

9
Selection Criteria

• Expanded significantly to incorporate
• Specific requirements for Seals incl.
• winter grades
• Specific requirements for HMA
• Practical constraints climate, location,
  production rates etc.

10
Document Structure

• Modified binder composition
• Product properties
• Modified binder classification system
• Product requirements
• Selection criteria
• Influence on design methodologies
• Construction
• Quality assurance
• Protocol for introduction of new modifiers
• HSE
• Appendix Sampling test methods

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Influences on Design Methodologies

• Surface seals adjustment factors etc
• HMA compaction temperatures, volumetrics etc.
• Need to align with or compliment
• other documents TRH 3 IGHMA etc.

12
Document Structure

• Modified binder composition
• Product properties
• Modified binder classification system
• Product requirements
• Selection criteria
• Influence on design methodologies
• Construction
• Quality assurance
• Protocol for introduction of new modifiers
• HSE
• Appendix Sampling test methods

13
Construction

• Construction requirements constraints
  Surface Seal HMA

14
Document Structure

• Modified binder composition
• Product properties
• Modified binder classification system
• Product requirements
• Selection criteria
• Influence on design methodologies
• Construction
• Quality assurance
• Protocol for introduction of new modifiers
• HSE
• Appendix Sampling test methods

15
Quality Assurance

• During blending
• During handling storage
• During construction
• Sampling and testing frequencies

16
Conclusions

• Initially a routine update exercise now a
  major rewrite!!!!!
• Still on target for original deadline
• May 2007