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Cover of Investigation of Long Term Ageing Characterisation Test Methods for Sprayed Sealing Binders
Investigation of Long Term Ageing Characterisation Test Methods for Sprayed Sealing Binders
  • Publication no: AP-T244-13
  • ISBN: 978-1-925037-16-6
  • Published: 28 August 2013

This report presents the results of a literature review and laboratory study which was conducted as part of the development of a new-long term ageing (durability) test for bituminous binders used in sprayed seals in Australia.

The literature review of existing low-temperature binder characterisation tests identified a number of test methods that were suitable for use as part of the new durability test method. Preliminary experimental investigations were conducted to assess the ability of the tests selected during the literature review to characterise the properties of aged bitumen and polymer modified binders.

Two methods known as the dynamic shear rheometer (DSR) flow test and the extensiometer critical tip opening displacement (CTOD) test were identified as being the most appropriate for future use. It has been proposed that further research work be conducted using these two test methods to determine which is most suitable for use in a future long-term ageing test method.

  • 1. Introduction
    • 1.1. Binder Ageing and Durability Test Method
    • 1.2. Australian Durability Test Method: Problem Statement
    • 1.3. Development of New Durability Test Method: Stage 1
    • 1.4. Development of New Durability Test Method: Stage 2
    • 1.5. Project Scope and Objectives
  • 2. Literature Review of Test Methods
    • 2.1. Definition of Low Temperature Characterisation Tests
    • 2.2. Australian Extensiometer
      • 2.2.1. Correlation of Extensiometer Properties and Field Performance
    • 2.3. Force Ductilometer
    • 2.4. Bending Beam Rheometer
    • 2.5. Direct Tension Tester
    • 2.6. Dynamic Shear Rheometer
      • 2.6.1. DSR Fatigue Test
      • 2.6.2. DSR Stress-sweep Test
      • 2.6.3. DSR Monotonic Loading (Flow Mode) Test
    • 2.7. DSR as Surrogate Test for BBR
    • 2.8. Other Test Methods
      • 2.8.1. Tensile Test Method
      • 2.8.2. Fraass Breaking Point Test
      • 2.8.3. Asphalt Binder Cracking Device (ABCD)
      • 2.8.4. Critical Tip Opening Displacement (CTOD) Test
  • 3. Test Method Review: Discussion
  • 4. Preliminary Tests: DSR
    • 4.1. DSR Flow Mode Test
      • 4.1.1. Shear Rate Control of the DSR
      • 4.1.2. Maximum Load Capacity of the DSR
      • 4.1.3. Data Interpretation
    • 4.2. Adhesion Failure of the Binder Sample During the DSR Test
      • 4.2.1. Higher Sample Mounting Temperature
      • 4.2.2. Sample Geometry without Bulge
    • 4.3. DSR Fatigue Mode Test
  • 5. Preliminary Test: Extensiometer
    • 5.1. Sample Preparation
    • 5.2. Maximum Load Capacity
    • 5.3. Failure Mode and Data Interpretation
    • 5.4. Force Ductilometer
  • 6. Preliminary Test: Extensiometer CTOD
    • 6.1. Sample Preparation
    • 6.2. Maximum Load and Data Resolution
    • 6.3. Failure Mode and Data Interpretation
  • 7. Summary and Conclusions
  • References