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AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 High performance asphalt and binders Part 1.

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Presentation on theme: "AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 High performance asphalt and binders Part 1."— Presentation transcript:

1 AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 High performance asphalt and binders Part 1

2 AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 1.Long life pavements o Experience, design systems, use, durability & performance 2.High performance asphalt & binders o High modulus asphalt (EME, HiMA), modifiers 3.Sustainability o RAP/WMA, bitumen substitutes, carbon calculators & energy analysis climate change impacts, societal concerns 4.Health & Safety o Construction of road works, health considerations for bitumen and asphalt products 5.Procurement Systems o Proprietary products (Avis Technique, HAPAS, etc.), “green” procurement, REACH, responsible sourcing, PPP and contract models www.aapa.asn.au 2012 Study Tour Key Topics

3 AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 Topic 2: High performance asphalt & binders Overview of reasons Bituminous binders  key component in the performance and service life of bituminous surfacings & asphalt pavements About 90% of the Australian all weather road network length is surfaced with sprayed seals  about 50% of binder usage Need to ensure optimum asphalt and seals performance in the field, and to promote best practices suitable to be adapted and adopted in Australia. Seeking details on: o new developments and test methods in high performance asphalt and bituminous materials (e.g. HiMA /EME, PMB, Emulsion) o actions taken by European and others (e.g. binder manufacturers, asphalt producers and researchers) to overcome field problems (e.g. climate change) o correlation between laboratory test results and field trials www.aapa.asn.au

4 AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 Topic 2: High performance asphalt & binders What is High Performance Asphalt? What does it look like? How is this different to what we currently do? Isn’t what we do good enough? For Heavy Duty roads – what’s your pavement configuration? www.aapa.asn.au New ConstructionRehabilitation SMA 10 AC 14 AC 14 HB AC10 AC20 AC 14 AC 20 Decreasing air voids

5 AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 Topic 2: High performance asphalt & binders High Performance Asphalt is essentially High Modulus Asphalt French Catalogue: www.aapa.asn.au

6 AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 Topic 2: High performance asphalt & binders High Performance Asphalt is essentially High Modulus Asphalt French Catalogue: www.aapa.asn.au

7 AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 Topic 2: High performance asphalt & binders www.aapa.asn.au Three French Methods of achieving High Modulus Asphalt: EME (Enrobesa Module Elevé) GB5 GAB II All methods move asphalt bases to Higher Modulus resulting in increase in load spreading and hence increased capacity.

8 AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 Topic 2: High performance asphalt & binders www.aapa.asn.au EME: High Modulus Asphalt: Standard Dense mix gradings 10/14/20 mix sizes Special Hard Binder:Stiffness Rut Resistance Increased binder content: Fatigue Resistance Density: Stiffness Moisture Resistance

9 AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 Topic 2: High performance asphalt & binders www.aapa.asn.au GB5: High Modulus Asphalt: Double Gap graded gradings (using packing theory): Density: Stiffness Moisture Resistance Standard binder content (4.0%): Stiffness Rut Resistance Modified Binder: Fatigue Resistance

10 AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 Topic 2: High performance asphalt & binders www.aapa.asn.au GAB II: High Modulus Asphalt: 65% Sand (16/32 Aggregate acts as a filler): Density: Stiffness Moisture Resistance Fatigue Resistance Special Hard Binder: Stiffness Rut Resistance

11 AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 Topic 2: High performance asphalt & binders Hard Binders: www.aapa.asn.au

12 AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 Topic 2: High performance asphalt & binders Hard Binders: www.aapa.asn.au

13 AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 Topic 2: High performance asphalt & binders Hard Binders: www.aapa.asn.au

14 AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 Topic 2: High performance asphalt & binders EME Binder Content: www.aapa.asn.au

15 AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 Topic 2: High performance asphalt & binders www.aapa.asn.au

16 AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 Topic 2: High performance asphalt & binders www.aapa.asn.au

17 AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 Topic 2: High performance asphalt & binders www.aapa.asn.au

18 AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 Topic 2: High performance asphalt & binders www.aapa.asn.au

19 AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 Topic 2: High performance asphalt & binders GB5 Packing: www.aapa.asn.au

20 AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 Topic 2: High performance asphalt & binders www.aapa.asn.au

21 AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 Topic 2: High performance asphalt & binders www.aapa.asn.au

22 AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 Topic 2: High performance asphalt & binders www.aapa.asn.au

23 AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 Topic 2: High performance asphalt & binders www.aapa.asn.au GB5 Packing:

24 AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 Topic 2: High performance asphalt & binders www.aapa.asn.au Mix Design & Performance Testing :

25 AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 Topic 2: High performance asphalt & binders www.aapa.asn.au Mix Design & Performance Testing:

26 AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 Topic 2: High performance asphalt & binders www.aapa.asn.au Mix Design & Performance Testing :

27 AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 Topic 2: High performance asphalt & binders www.aapa.asn.au

28 AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 Topic 2: High performance asphalt & binders www.aapa.asn.au Country HiMA production (million tonnes) RAP in HiMA (%) Spain393 France397 Austria85 USA32717 Germany4526 The Netherlands1032 High Modulus Asphalt Production:

29 AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 Topic 2: High performance asphalt & binders Questions Asphalt o EME/ HiMA - specification, testing, field links, pavement & subgrade requirement, binder selection & processing o Performance & Construction o Reinforced, Modified Binders & SMA – design & composition, service life, pros & cons o Moisture Susceptibility: measures, tests & approaches o PGA/PA: maintenance & performance Specifications and Test Methods o Approaches to proprietary mix design, types of modifiers used, low temperature test methods, control of segregation & degradation, etc www.aapa.asn.au

30 AAPA 2012 Study Tour to Europe – High performance asphalt and binders – Part 1 v1 Topic 2: High performance asphalt & binders Questions Binders o concerns: climate change, quality & characteristic of imported material o testing level, lab-field correlation, stabilisation of unbound material Emulsions o test methods o types used in sprayed chip sealing o performance based specifications Surfacings o cost benefit of thin surfacings, reasons of application & modelling ` www.aapa.asn.au

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