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PAVEMENT. Work programme Denis François (LCPC) Cliff Nicholls (TRL) Erik Nielsen (DRI) Francisco Sinis (CEDEX) & Jean-Michel PIAU (LCPC). PLAN OF PRESENTATION. I ntroduction General objective of SAMARIS Pavement project Context Overview of the technical programme

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pavement

PAVEMENT

Work programme

Denis François (LCPC)

Cliff Nicholls (TRL)

Erik Nielsen (DRI)

Francisco Sinis (CEDEX)

&

Jean-Michel PIAU (LCPC)

Reference Group Meeting

plan of presentation
PLAN OF PRESENTATION
  • Introduction
    • General objective of SAMARIS Pavement project
    • Context
    • Overview of the technical programme
  • Review of technical WP3 to WP6
    • Objective
    • Tasks
    • Deliverables
    • (Q&A period)
  • Conclusion
    • Budget
    • Benefits of end-users

Reference Group Meeting

pavement i ntroduction general objective
Pavement - IntroductionGENERAL OBJECTIVE
  • Sustainable (and Advanced) MAterials for Road InfraStructure
  • Objective
    • Anticipate the greater use of recycled materials in pavement construction& maintenance within the frame of Sustainable Development Policy
    • Prepare the next generation of CEN standards
    • Special attention given to the situation of Central European countries

Reference Group Meeting

pavement i ntroduction general objective1
Pavement - IntroductionGENERAL OBJECTIVE
  • Clarification of recycling policy
    • numerous materials and situations
      • sourcesof materials : road (in place/storage), deconstruction, demolition, waste (industrial) materials,…
      • destination : subgrade, subbase, wearingcourse, pavement shoulders…, low/high traffic roads
      • process : cold/warm, fixed/mobile plant, bitumen/hydraulic binders…
      • Various experiences from the different countries

Reference Group Meeting

pavement i ntroduction context
Pavement - IntroductionCONTEXT
  • 1) Sustainable development policy (SDP) cares for :
    • Technical aspects
    • Environmental and health aspects
    • Economical aspects
    • Social aspects

Reference Group Meeting

pavement i ntroduction context1
Pavement – IntroductionCONTEXT
  • Adequacy between SDP and the re-use of materials in Pavement construction & maintenance (PC&M)
    • Favourable conjonctural aspects
      • PC&M needs high quantity of materials
      • no need for “very highly” performant materials
    • Benefits of re-use
      • spare of natural materials
      • limitation of waste materials and waste disposal
      • possibility of economical savings

Reference Group Meeting

pavement i ntroduction context2
Pavement - IntroductionCONTEXT
  • But SDP also requires that recycling is:
    • no detrimental to nature, especially to ground water (environmental aspects at long run)
    • no detrimental to human being, especially to workers during construction/maintenance phase (safety aspects)
    • sufficiently performant from a technical point of view (durability of infrastructure, properties of wearing course - skid resistance,…)

Peculiar importance given to environmental, safety and mechanical aspects

Reference Group Meeting

pavement i ntroduction context3
Pavement - IntroductionCONTEXT
  • 2) On-going work for European standardisation
    • Mandate 124,…

Important place given in SAMARIS to pre-standardisation work (first or second generation of standards)

  • 3) Several previous international research projects in the same area
    • ALT-MAT,Courage, Polmit, COST337,…

Important place given to litterature review

Reference Group Meeting

pavement i ntroduction overview of the technical programme
Pavement - IntroductionOVERVIEW OF THE TECHNICAL PROGRAMME
  • Assess the environmental risks linked to infrastructures, built or reinforced with alternative materials ; assess the performance of structures (durability) (WP3, LCPC)
  • 2) Prepare the work for the introduction of environmentaland safety concerns in specifications of alternative materials, both during the pavement construction/deconstruction phase or during the service life (detection of hazardous components); take into account the specific scenario of fires in tunnels
  • (WP4, TRL)

Reference Group Meeting

pavement i ntroduction overview of the technical programme1
Pavement - IntroductionOVERVIEW OF THE TECHNICAL PROGRAMME
  • 3) Promote performance-based specifications, available « whatever » the materials, instead of formulation based on recipe (WP5, CEDEX)
      • restricted in SAMARIS to the case of specification against permanent deformation
  • 4) Clarify the international context of re-cycling ; provide up-dated information and recommendations about the techniques and applications of recycling
  • (WP6, DRI)

Reference Group Meeting

pavement i ntroduction overview of the technical programme2
Pavement - IntroductionOVERVIEW OF THE TECHNICAL PROGRAMME
  • WP3 : Assessment of alternative materials (LCPC)
  • WP4 : Safety and environmental concerns in material specifications (TRL)
  • WP5 : Performance-based spec. (CEDEX)
  • WP6 : Techniques for recycling (DRI)

  • WP2 for development, review of the programme, interrelation between WPs
  • 17 partners

Reference Group Meeting

pavement introduction overview of the technical programme
Pavement - IntroductionOVERVIEW OF THE TECHNICAL PROGRAMME
  • General features of the research programme
    • Interrelation between WPs
    • Litterature review
    • Use of questionnaires (some to the reference group members)
    • Use of models
    • Development of methodological tools
    • Sharing & crossing of the experience from the different countries
    • Clustering with FORMAT
      • technico-economical optimisation of recycling techniques
    • Quality assurance frame: internal/external review of production, reference group,...

Reference Group Meeting

pavement introduction overview of the technical programme1
Pavement - IntroductionOVERVIEW OF THE TECHNICAL PROGRAMME
  • Main expected deliverables
    • General methodology for the assessment of functional, safety and environmental aspects
    • Protocols to investigate hazardous components, when re-using pavement materials
    • Environmental annex to CEN products standards
    • Mechanical models and test methods for performance-based specifications
    • Technical guides and recommendations for a proper-use of recycling techniques in road construction

Reference Group Meeting

wp3 assessment for alternative materials d enis fran ois lcpc
WP3 : Assessment for alternative materials Denis François -LCPC

Main objective

  • Develop an approach for the assessment of eco-compatibility and durability of alternative materials in road construction
  • Task 3.1 : Review of regulation about recycling, existing in different countries (Europe, USA,…)
  • Task 3.2 : Development of a methodology for the assessment of alternative materials, based on use scenarios

Reference Group Meeting

slide15

Road soil

Ecosystème

Water table

Synthesis: use scenarios

Diagnosis

Local environment conditions

Material characteristics

Road structure characteristics

Constructive arrangements(adjustment var)

Soil role

Material mineralogy and chemistry

Hydrodynamics of materials

Ageing

Complementary approaches

Material geotechnics

slide16

clino-pyroxène

alliage

Ph’D subject (M. Bouvet) : Subgrade parameters having a specific role in the transport of polluants, issued from waste materials used in pavement construction

plagio-clase

verre

Examples

wp3 assessment for alternative materials materials to be contemplated
WP3 : Assessment for alternative materials MATERIALS TO BE CONTEMPLATED
  • MSWI (Municipal solid waste incinerator)
  • bottom ash, coal fly ash
  • crushed concrete (from building and road demolition)
  • blast oxygen furnace slag, electric arc furnace slag, air cooled blast furnace slag, granulated (vitrified) blast furnace slag
  • decontaminated soils.

Reference Group Meeting

wp3 assessment for alternative materials deliverables
WP3 : Assessment for alternative materials DELIVERABLES
  • Report on existing specific national regulations applied to material recycling. (December 2003)
  • Report on the critical analysis of European texts (March 2004)
  • Influent factors and their range of variation in road applications (March 2004)

Reference Group Meeting

wp 4 safety and environmental concerns in material specifications cliff nichols trl
WP4 : Safety and Environmental Concerns in Material SpecificationsCliff Nichols -TRL
  • Task 4.1 : Detection of hazardous components into materials before their re-use
  • Task 4.2 : Reaction of pavement materials to fires (ex: asphalt materials & tunnels)
  • Task 4.3 : Environmental annexes to CEN standard products

Reference Group Meeting

wp 4 safety and environmental concerns in material specifications
WP4 : Safety and Environmental Concerns in Material Specifications

Task 4.1 : Detection of hazardous components into materials before their re-use

  • Materials creating either:
    • hazardous fines, when pulverised
    • hazardous fumes, when heated (mixing)
    • near or exceed flash point, during heating
    • risks of leaching, when in place (cf. WP3)
  • Ex: tar, polymer in modified binders, abestos fibres,…
  • Identification of a set of detection tests, candidate to standardisation
  • Real implication on health, out of scope

Reference Group Meeting

wp 4 safety and environmental concerns in material specifications1
WP4 : Safety and Environmental Concerns in Material Specifications

Task 4.2 : Reaction of pavement materials to fires

  • Objective : clarification of the need to investigate the reaction to fire of pavement materials ; define the appropriate testing procedures (mandate 124)
    • EU demand following major incidents in tunnels
    • Work in SAMARIS on traditionnal asphalt materials (highly porous or not, surface dressing, slurry surfacing,…)
  • 2 phases, with milestone
    • survey among authorities + litterature review
    • If knowledge gaps identified, define means + development

Reference Group Meeting

wp 4 safety and environmental concerns in material specifications2
WP4 : Safety and Environmental Concerns in Material Specifications

Task 4.3 : Environmental annexes to CEN standard products

  • Objective : prepare an environmental annex to CEN standard products
    • Strongly interrelated with WP3
    • Make pilot environmental studies on various type of materials

Reference Group Meeting

wp 4 safety and environmental concerns in material specifications deliverables
WP4 : Safety and Environmental Concerns in Material Specifications DELIVERABLES
  • Task 4.1
    • Report on existing test methods for the detection of hazardous components (December 2003)
    • Report on the test methods for the detection of hazardous components (August 2005)
  • Task 4.2
    • Report on the survey on road authorities positions with regards to reaction of pavement materials to fire (Feb.2004)
    • Report on testing procedure for reaction to fire of pavement materials (June 2005)
  • Task 4.3
    • Report on the environmental annex to road product standards (September 2005)

Reference Group Meeting

wp 5 performance based specifications erik nielsen dri
WP5 : Performance based SpecificationsErik Nielsen -DRI
  • Main objective
    • Material design : evolve from a recipe approach to a performance based approach
    • Pre-standardisation work
    • Feasibility + methodology, rather than exhaustivity
      • Work mostly on classical pavement materials
      • Permanent deformation of unbound granular materials and asphalt materials

Reference Group Meeting

wp 5 performance based specifications tasks
WP5 : Performance based SpecificationsTASKS
  • Task 5.2 : Permanent deformation of unbound materials : modelling and validation
  • Task 5.3 : Rutting of bituminous pavements : modelling and validation

  • Task 5.1 : Calibration and validation of material and structural models from full scale data
    • Constitution of a database of well documented full scale testing (field or ALT)

Reference Group Meeting

wp 5 performance based specifications general features
WP5 : Performance based SpecificationsGENERAL FEATURES
  • Distinction beetween :
    • Routine models
    • Advanced models
    • Research models (not fully addressed in SAMARIS)

Reference Group Meeting

wp 5 performance based specifications deliverables
WP5 : Performance based SpecificationsDELIVERABLES
  • Data base and report on reference full scale tests (April 2004)
  • Report on models for prediction of permanent deformation of unbound granular materials in flexible pavement (April 2004)
  • Report on models for prediction of rutting in bituminous surface layers (April 2004)
  • Calibration and validation report for modelling of permanent deformation of unbound and bituminous materials in flexible pavements and recommendations for the definition of performance-based specifications (September 2005)

Reference Group Meeting

wp 6 techniques for recycling francisco sinis cedex
WP6 : Techniques for RecyclingFrancisco Sinis – CEDEX
  • Main objective :
    • provide up-dated information and recommendations about the techniques and applications of recycling
  • ·Task 6.1: To elaborate a technical guide on recycling techniques
  • ·Task 6.2: To review the situation on recycling in Central European countries.

Reference Group Meeting

wp 6 techniques for recycling main features
WP6 : Techniques for RecyclingMAIN FEATURES
  • Strongly interconnected with WP3
  • Materials of interest :
    • Municipal Solid Waste Incinerator
    • Steel Slag,Blast Furnace Slag, Non-Ferrous slag
    • Coal Fly Ash, Coal Bottom Ash
    • Mining Waste Rock
    • Blast Furnace Slag
    • Ground Granulated
    • Scrap Tyres
    • Waste Glass
    • Foundry Sand

Reference Group Meeting

wp 6 techniques for recycling deliverables
WP6 : Techniques for RecyclingDELIVERABLES
  • Report on literature review on recycling of by-products in road construction in Europe (Dec. 2003)
  • Report recommendations for mixing plants for recycling works (June 2004)
  • Report on the situation on recycling in Central European countries (August 2004)
  • Technical guide on techniques of recycling (September 2005)

Reference Group Meeting

pavement conclusion
PavementCONCLUSION
  • Budget
    • 193 man-months, 1 631 000 Euros
  • Expected benefits for road owners, road users, research institutes
    • Co-ordination of actions, implementation, no duplication of effort, association of CEE countries
    • Assessment of the eco-compatibility of materials to be re-used in road works
    • Less problems of pollution.Better use of by-products and preservation of natural resources
    • Increased safety at road work; less health problems with undetected hazardous components when recycling

Reference Group Meeting

pavement conclusion1
PavementCONCLUSION
  • Expected benefits for road owners, road users, research institutes
    • Performance-based specification for functional properties of pavement materials for flexible pavements,bituminous surface layers
    • Possibility to assess in a common way different types of materials including secondary materials and by-products
    • Reduction in cost of pavement works by the use of a larger range of materials
    • Technical guide on recycling techniques

Reference Group Meeting

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