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World of Asphalt Pavements Feedback Sydney

World of Asphalt Pavements Feedback Sydney. Stephen Emery. Year 2000 'World of Asphalt Pavements' International Conference ‘The Flexible Path for the 21st Century’ February 20-24, 2000 — Sydney, Australia. Session 1: Australasian Overview of World Issues.

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World of Asphalt Pavements Feedback Sydney

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  1. World of Asphalt Pavements FeedbackSydney Stephen Emery

  2. Year 2000 'World of Asphalt Pavements' International Conference ‘The Flexible Path for the 21st Century’ February 20-24, 2000 — Sydney, Australia

  3. Session 1: Australasian Overview of World Issues • Innovation in Specifications and Contractual Arrangements - towards performance contracting, Australia

  4. Session 2A: Design Concepts • Compass to design functional mixes, Netherlands • Design and vacuum creep on SMA, Australia

  5. Session 2B: Innovative Surfaces 1 • Microsurfacing for heavily trafficked roads, Australia

  6. Session 2C: Binders – Cold • Emulsion Priming of Road Bases, Australia

  7. Session 3A: Performance Testing • Evaluation of field and laboratory fatigue properties of asphalt mixes, Australia

  8. Session 3B: Aggregate/Binder Properties • Detecting and measuring segregation, USA

  9. Session 3C: Binders – Hot • Specialty binders with improved fuel resistance, Australia

  10. Session 4: Working Together: achieving better & safer outcomes • Keynote: Asphalt paving health effects research and development in the United States, Asphalt Institute, USA

  11. Session 5: European Overview of World Issues • Use of innovative contracts in Sweden • LCI (Life Cycle Inventory) for asphalt in Green Procurement, Denmark

  12. Session 6A: Innovative Surfaces 2 • Porous asphalt, NZ • Stone mastic asphalt: performance related material specification and experience, NZ

  13. Session 6B: Application Innovation • MultiPaver - road maintenance, Australia • Reduced thickness bitumen rubber asphalt leads to cost effective pavement rehabilitation, USA

  14. Session 6C: Environmental Aspects • Low noise asphalt concrete containing tyre rubber, France • Use of PG asphalt cement in recycled Hot Mix, USA/Canada

  15. Session 7A: Binder Specification/Development • Australian Performance Based Binder Specifications • Multi purpose (multigrade) high performance binder, Mobil • Multibit–a new high performance (multigrade) bitumen, BP

  16. Session 7B: Aggregate/Surface Texture • Evaluation of Superpave fine aggregate specification, USA • Aggregate suitability (stripping potential) for asphalt using methylene blue test, Australia • Hardness testing of pavement surfaces, NZ • Comparison of methods to measure road surface macrotexture, NZ

  17. Session 7C: Costing/Statistical Control • Asphalt Mixture Proportioning: Mix Design and Production Compared, USA

  18. Session 8: Performance Outcomes – more than just a good idea • Partnering in Road Construction, RSA • Simple Performance Test - AASHTO 2002 Design Guide, USA

  19. Session 9: North American Overview of World Issues • Innovations in Materials and Mix Design • Developments in Specifications and Contract • Construction Equipment Developments, • HMA Work Force Issues for the 21st Century

  20. Session 10: An International Potpourri • Australian Asphalt Mix Design Procedure, Australia • Experience with thin and ultra-thin HMA pavements in the United States, USA

  21. Australian Asphalt Mix Design Procedure • Gyratory compaction is used in design • Flexural modulus, not resilient modulus • Creep slope is sensitive to air voids; not good assessment of rutting. Wheel-tracking test to be used in future. • Rutting controlled by • Air voids of 2.5% at refusal density (350 gyrations) • Wheel tracking results

  22. Session 11: Southern African Overview of World Issues • Procurement protocol for modified binders • New hotmix design method for southern Africa • Development of a product certification system • Pavement performance evaluation as input to stochastic asset management

  23. Session 12: Progress along the World Highway of the 21st Century • Technological developments under long term road maintenance, Australia • Implications of long term road maintenance contracts for the asphalt industry, South Africa

  24. Closure • Opportunity to benchmark South Africa internationally • We saw that South African issues parallel world issues • we are living in a global society • Next WOAP conference • Jointly with CAPSA? • 2004? • Held in South Africa?

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