SAMARIS WP12

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SAMARIS - WP12
Strategies for Rehabilitation of Highway
Structures Mid-Term Review Partners TRL, ZAG,
UCD, EPFL July 04
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Partners

• TRL
• Richard Woodward
• Bill McMahon
• Malcolm Mckenzie
• ZAG
• Ales Znidaric
• UCD
• Mark Richardson
• EPFL
• Emmanuel Denarié

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Tasks

• Task 12.1 Description of the problem
• Task 12.2 Review of other work
• Task 12.3 Development of guidelines.

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Task 12.1

• Inception Report
• Define scientific QA procedures
• Review of methods available for the
  rehabilitation of highway structures (M2)

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Task 12.2 Review of Other Work (M6)

• Review of strategies
• Frangopol
• Branco Britto
• BRIME
• BAPS (Highways Agency)
• NORECON
• Non-technical issues

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Issues

• Definitions
• Two approaches
• Rigorous
• Qualitative
• Selection of suitable repair methods (life etc)
• Contact with Rehabcon

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Rigorous Approach

• Sum all costs
• Initial
• Inspection
• Maintenance
• Repairs
• Failure
• Replacement
• Environmental/social

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Issues

• Definitions
• Two approaches
• Rigorous
• Qualitative
• Selection of suitable repair methods (life etc)
• Contact with Rehabcon

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Rehabcon Repair of Concrete Structures

• Non-technical issues

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Tasks

• Task 12.1 Description of the problem -
  Complete
• Task 12.2 Review of other work - Complete
• Task 12.3 Development of guidelines.

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Task 12.3 Development of Guidelines

• Collect case studies
• Determine criteria in different countries
• Investigate other methods for decision making
• Liaise with WPs 13-15
• Draft Guidelines

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Case Studies

• Name of structure 
• Description - any special features
• Reason for rehabilitation 
• Options considered 
• Selected option and reasons

• Aleje Jerozolimskie Viaduct, Warsaw

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Criteria in Different Countries

• WP members to provide information on criteria in
  their countries
• Contact road administrations through FEHRL

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Other Methods for Decision Making

• Value management
• Concepts being developed for FORMAT
• Genetic algorithms
• Multi-criteria decision making

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Develop Guidelines

• The decision making process - what needs to be
  taken into account and how the different
  influences are balanced.
• The information needed to inform the decision
  making - this links to WP15.
• The options available WP13 WP14 examples.

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Changes - 1

• D31 Change title from
• Guidelines on selection and use of innovative
  materials for the rehabilitation of highway
  structures
• to
• Guidelines on the selection of innovative
  techniques for the rehabilitation of concrete
  highway structures

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Changes - 2

• Move D25 from WP13 to WP12
• Change D25 from
• Guidelines for the use of corrosion inhibitors
  for the maintenance of highway structures
• To
• Specifications for the use of corrosion
  inhibitors and HPFRCC for the rehabilitation of
  concrete highway structures

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Programme
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Planned Work

• Continue to collect case studies
• Determine criteria for decision in different
  countries
• Investigate applicability of other decision
  making criteria
• Investigate applicability of Value Management
• Liaison with FORMAT
• Maintain liaison with WPs 13 15
• Develop Guidelines