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Lausanne 11.06.2003Reference Group Meeting1PAVEMENT Work programme Denis François (LCPC) Cliff Nicholls (TRL) Erik Nielsen (DRI) Francisco Sinis (CEDEX)

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Presentation on theme: "Lausanne 11.06.2003Reference Group Meeting1PAVEMENT Work programme Denis François (LCPC) Cliff Nicholls (TRL) Erik Nielsen (DRI) Francisco Sinis (CEDEX)"— Presentation transcript:

1 Lausanne Reference Group Meeting1PAVEMENT Work programme Denis François (LCPC) Cliff Nicholls (TRL) Erik Nielsen (DRI) Francisco Sinis (CEDEX) & Jean-Michel PIAU (LCPC)

2 Lausanne Reference Group Meeting2 PLAN OF PRESENTATION IntroductionIntroduction General objective of SAMARIS Pavement projectGeneral objective of SAMARIS Pavement project ContextContext Overview of the technical programmeOverview of the technical programme Review of technical WP3 to WP6Review of technical WP3 to WP6 ObjectiveObjective TasksTasks DeliverablesDeliverables (Q&A period)(Q&A period) ConclusionConclusion BudgetBudget Benefits of end-usersBenefits of end-users

3 Lausanne Reference Group Meeting3 Pavement - Introduction GENERAL OBJECTIVE Sustainable (and Advanced) MAterials for Road InfraStructureSustainable (and Advanced) MAterials for Road InfraStructure ObjectiveObjective Anticipate the greater use of recycled materials in pavement construction & maintenance within the frame of Sustainable Development PolicyAnticipate the greater use of recycled materials in pavement construction & maintenance within the frame of Sustainable Development Policy Prepare the next generation of CEN standardsPrepare the next generation of CEN standards Special attention given to the situation of Central European countriesSpecial attention given to the situation of Central European countries

4 Lausanne Reference Group Meeting4 Pavement - Introduction GENERAL OBJECTIVE Clarification of recycling policyClarification of recycling policy numerous materials and situationsnumerous materials and situations  sources of materials : road (in place/storage), deconstruction, demolition, waste (industrial) materials,…  destination : subgrade, subbase, wearing course, pavement shoulders…, low/high traffic roads  process : cold/warm, fixed/mobile plant, bitumen/hydraulic binders…  Various experiences from the different countries

5 Lausanne Reference Group Meeting5 Pavement - Introduction CONTEXT 1) Sustainable development policy (SDP) cares for :1) Sustainable development policy (SDP) cares for : Technical aspectsTechnical aspects Environmental and health aspectsEnvironmental and health aspects Economical aspectsEconomical aspects Social aspectsSocial aspects

6 Lausanne Reference Group Meeting6 Pavement – Introduction CONTEXT Adequacy between SDP and the re-use of materials in Pavement construction & maintenance (PC&M)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

7 Lausanne Reference Group Meeting7 Pavement - Introduction CONTEXT But SDP also requires that recycling is:But SDP also requires that recycling is: no detrimental to nature, especially to ground water (environmental aspects at long run) 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) 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,…) 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

8 Lausanne Reference Group Meeting8 Pavement - Introduction CONTEXT 2) On-going work for European standardisation2) On-going work for European standardisation Mandate 124,…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 area3) Several previous international research projects in the same area ALT-MAT,Courage, Polmit, COST337,…ALT-MAT,Courage, Polmit, COST337,… Important place given to litterature review

9 Lausanne Reference Group Meeting9 Pavement - Introduction OVERVIEW OF THE TECHNICAL PROGRAMME 1)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 environmental and 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)

10 Lausanne Reference Group Meeting10 Pavement - Introduction OVERVIEW 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 deformationrestricted 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) (WP6, DRI)

11 Lausanne Reference Group Meeting11 Pavement - Introduction OVERVIEW OF THE TECHNICAL PROGRAMME WP3 : Assessment of alternative materials (LCPC)WP3 : Assessment of alternative materials (LCPC) WP4 : Safety and environmental concerns in material specifications(TRL)WP4 : Safety and environmental concerns in material specifications(TRL) WP5 : Performance-based spec.(CEDEX)WP5 : Performance-based spec.(CEDEX) WP6 : Techniques for recycling (DRI)WP6 : Techniques for recycling (DRI) WP2 for development, review of the programme, interrelation between WPsWP2 for development, review of the programme, interrelation between WPs 17 partners17 partners

12 Lausanne Reference Group Meeting12 Pavement - Introduction OVERVIEW OF THE TECHNICAL PROGRAMME General features of the research programmeGeneral features of the research programme Interrelation between WPsInterrelation between WPs Litterature reviewLitterature review Use of questionnaires (some to the reference group members)Use of questionnaires (some to the reference group members) Use of modelsUse of models Development of methodological toolsDevelopment of methodological tools Sharing & crossing of the experience from the different countriesSharing & crossing of the experience from the different countries Clustering with FORMATClustering with FORMAT  technico-economical optimisation of recycling techniques Quality assurance frame : internal/external review of production, reference group,...Quality assurance frame : internal/external review of production, reference group,...

13 Lausanne Reference Group Meeting13 Pavement - Introduction OVERVIEW OF THE TECHNICAL PROGRAMME Main expected deliverablesMain expected deliverables General methodology for the assessment of functional, safety and environmental aspectsGeneral methodology for the assessment of functional, safety and environmental aspects Protocols to investigate hazardous components, when re-using pavement materialsProtocols to investigate hazardous components, when re-using pavement materials Environmental annex to CEN products standardsEnvironmental annex to CEN products standards Mechanical models and test methods for performance- based specificationsMechanical models and test methods for performance- based specifications Technical guides and recommendations for a proper- use of recycling techniques in road constructionTechnical guides and recommendations for a proper- use of recycling techniques in road construction

14 Lausanne Reference Group Meeting14 WP3 : Assessment for alternative materialsD enis 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 3.1 : 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 scenariosTask 3.2 : Development of a methodology for the assessment of alternative materials, based on use scenarios

15 Complementary approaches Road soil Water table Ecosystème Soil role Material mineralogy and chemistry Hydrodynamics of materials Diagnosis Ageing Synthesis: use scenarios Local environment conditions Material characteristics Road structure characteristics Constructive arrangements (adjustment var) Material geotechnics

16 verre clino- pyroxène plagio- clase alliage Examples Ph’D subject (M. Bouvet) : Subgrade parameters having a specific role in the transport of polluants, issued from waste materials used in pavement construction

17 Lausanne Reference Group Meeting17 WP3 : Assessment for alternative materials MATERIALS TO BE CONTEMPLATED MSWI (Municipal solid waste incinerator)MSWI (Municipal solid waste incinerator) bottom ash, coal fly ashbottom ash, coal fly ash crushed concrete (from building and road demolition)crushed concrete (from building and road demolition) blast oxygen furnace slag, electric arc furnace slag, air cooled blast furnace slag, granulated (vitrified) blast furnace slagblast oxygen furnace slag, electric arc furnace slag, air cooled blast furnace slag, granulated (vitrified) blast furnace slag decontaminated soils. decontaminated soils.

18 Lausanne Reference Group Meeting18 WP3 : Assessment for alternative materials DELIVERABLES Report on existing specific national regulations applied to material recycling. (December 2003)Report on existing specific national regulations applied to material recycling. (December 2003) Report on the critical analysis of European texts (March 2004)Report on the critical analysis of European texts (March 2004) Influent factors and their range of variation in road applications (March 2004)Influent factors and their range of variation in road applications (March 2004)

19 Lausanne Reference Group Meeting19 WP4 : Safety and Environmental Concerns in Material Specifications Cliff 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

20 Lausanne Reference Group Meeting20 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

21 Lausanne Reference Group Meeting21 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

22 Lausanne Reference Group Meeting22 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

23 Lausanne Reference Group Meeting23 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)

24 Lausanne Reference Group Meeting24 WP5 : Performance based Specifications Erik 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

25 Lausanne Reference Group Meeting25 WP5 : Performance based Specifications TASKS 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)

26 Lausanne Reference Group Meeting26 WP5 : Performance based Specifications GENERAL FEATURES Distinction beetween : Routine models Advanced models Research models (not fully addressed in SAMARIS)

27 Lausanne Reference Group Meeting27 WP5 : Performance based Specifications DELIVERABLES 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)

28 Lausanne Reference Group Meeting28 WP6 : Techniques for Recycling Francisco 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.

29 Lausanne Reference Group Meeting29 WP6 : Techniques for Recycling MAIN FEATURES Strongly interconnected with WP3Strongly interconnected with WP3 Materials of interest :Materials of interest : Municipal Solid Waste IncineratorMunicipal Solid Waste Incinerator Steel Slag, Blast Furnace Slag, Non-Ferrous slagSteel Slag, Blast Furnace Slag, Non-Ferrous slag Coal Fly Ash, Coal Bottom AshCoal Fly Ash, Coal Bottom Ash Mining Waste RockMining Waste Rock Blast Furnace SlagBlast Furnace Slag Ground GranulatedGround Granulated Scrap TyresScrap Tyres Waste GlassWaste Glass Foundry SandFoundry Sand

30 Lausanne Reference Group Meeting30 WP6 : Techniques for Recycling DELIVERABLES Report on literature review on recycling of by-products in road construction in Europe (Dec. 2003)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 recommendations for mixing plants for recycling works (June 2004) Report on the situation on recycling in Central European countries (August 2004)Report on the situation on recycling in Central European countries (August 2004) Technical guide on techniques of recycling (September 2005)Technical guide on techniques of recycling (September 2005)

31 Lausanne Reference Group Meeting31 Pavement CONCLUSION BudgetBudget 193 man-months, Euros193 man-months, Euros Expected benefits for road owners, road users, research institutesExpected benefits for road owners, road users, research institutes Co-ordination of actions, implementation, no duplication of effort, association of CEE countriesCo-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 worksAssessment 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 resourcesLess 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 recyclingIncreased safety at road work; less health problems with undetected hazardous components when recycling

32 Lausanne Reference Group Meeting32 Pavement CONCLUSION Expected benefits for road owners, road users, research institutesExpected benefits for road owners, road users, research institutes Performance-based specification for functional properties of pavement materials for flexible pavements,bituminous surface layersPerformance-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- productsPossibility 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 materialsReduction in cost of pavement works by the use of a larger range of materials Technical guide on recycling techniquesTechnical guide on recycling techniques

33 Lausanne Reference Group Meeting33 Further comments/questions :Further comments/questions :


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