Austroads: Transport Research and Trends

Standards Australia: Bitumen and Related Materials for Roads

This webinar, presented by Robert Urquhart on 11 August 2020, gives an overview of an Austroads project which provided expert technical input into the update of four Australian standards which were revised by the Standards Australia Technical Committee CH-025 ‘Bitumen and related products for roadmaking’.

This webinar describes the main changes that have occurred during revision of the following standards:

• AS 2341.3 Determination of kinematic viscosity
• AS 2341.12 Determination of penetration
• AS 2341.18 Determination of softening point
• AS 3568 Oils for reducing the viscosity of bituminous binders for pavements.

Introduction to the Life Cycle Costing Framework and its Application to Sealed Roads

This webinar, faciliated by Tyrone Toole, Phil Hunt and Ranita Sen on 17 June 2020, focuses on the life-cycle costing framework and a suite of practical examples to demonstrate how to assess the best use of available marginal and non‑standard materials in sealed roads in different geographical and climactic conditions in Australia.

Introduction to the Life-Cycle Costing Framework and its Application to Unsealed Roads

This webinar, presented on 30 June 2020 by Zia Rice, Tyrone Toole and Lory Noya, looks specifically into the use of the life-cycle costing framework and the important components that are considered for the assessment of an unsealed road. Special guest speakers from ARRB’s Asset Management team provide greater detail into the life-cycle costing examples through the presentation of several case studies.

Introduction to the Life-Cycle Costing Framework and its Application to Unsealed Roads

This webinar, presented on 30 June 2020 by Zia Rice, Tyrone Toole and Lory Noya, looks specifically into the use of the life-cycle costing framework and the important components that are considered for the assessment of an unsealed road. Special guest speakers from ARRB’s Asset Management team provide greater detail into the life-cycle costing examples through the presentation of several case studies.

Sustainable Roads Through Fit-for-purpose Use of Available Materials

This webinar, presented on 15 April 2020, provides an overview of the key components which influence fit-for-purpose material selection for low to medium volume regional and rural roads.

It covers:

• material performance and risk assessment
• risk reduction techniques
• materials option assessment
• life cycle cost assessment process.

It considers material properties, traffic, climate, material modification and stabilisation, and life-cycle-cost implications. Case studies provide real-life, practical examples.

It was presented by Mick Savage, Zia Rice and Tyrone Toole.

Guide to Pavement Technology Part 5: Pavement Evaluation and Treatment Design

This webinar, presented on 22 August 2019, provides an overview of the key changes to the Guide to Pavement Technology Part 5: Pavement Evaluation and Treatment Design, and the significant advances in the thickness design of structural treatments for flexible road pavements.

It covers:

• an overview of the pavement evaluation process and selection of treatment options
• use of Travelling Speed Deflectometer (TSD) to design granular overlays
• new procedures for mechanistic-empirical design of strengthening treatments.

Presented by Geoff Jameson and Dr Michael Moffatt.

Development of a Sprayed Seal Binder Cracking Test

This webinar provides an overview of an Austroads project that developed a new sprayed seal binder cracking test and compared the performance of polymer modified binders (PMBs).

It covers:

• background of the project
• sprayed seal binder cracking test
• comparisons of the performance of S20E/A20E and S25E/A15E grade PMBs in asphalt and sprayed seals
• proposed changes to AGPT/T190 based on the results of the project.

The webinar was presented on 8 August 2019 by Robert Urquhart.

Relationships Between Cutter Oil Properties and Sprayed Seal Performance

This webinar provides an overview of an Austroads project that compared the test properties of seven commercially available cutter oils with their sprayed seal performance.

It covers:

• results of the project
• types of cutter oils included in the study
• cutter oil test properties and their relationship to sprayed seal performance
• proposed changes to Australian Standard 3568 based on the results of the project and input from Austroads Bituminous Surfacings Working Group members.

The webinar was presented on 11 July 2019 by Robert Urquhart.

Guide to Pavement Technology Part 4D: Stabilised Materials

This webinar gives as overview of the key changes to the Guide and the significant advances in the areas of stabilisation or road pavements.

It covers improvements to the Guide including:

• categories of stabilised materials
• binder selection
• mix design of cementitiously stabilised materials 
• mix design of lime stabilised subgrades
• mix design of foamed bitumen stabilised materials.

The webinar was presented presented on 11 April 2019 by Geoff Jameson.

Bituminous Binders and Selection and Design of Sprayed Seals: Guide to Pavement Technology Parts 4F and 4K

This webinar provides an overview of the key changes to the Guide to Pavement Technology Parts 4F and 4K, and the significant advances in the areas of binder specifications and sprayed seal design.

It covers:
• technical revisions to reflect current specifications, guidelines and best practice
• outcomes of recent research
• double/double seal design
• initial deal design and additional available treatments
• low volume seal design.

The webinar was presented on 31 October 2018 by Dr Young Choi and Steve Patrick.