Pavement
This presentation is the property of its rightful owner.
Sponsored Links
1 / 33

PAVEMENT PowerPoint PPT Presentation


  • 95 Views
  • Uploaded on
  • Presentation posted in: General

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

Download Presentation

PAVEMENT

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


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 materialsDenis 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


    Pavement

    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


    Pavement

    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


    Pavement

    • Further comments/questions :

    • [email protected]

    Reference Group Meeting


  • Login