Test Methods and Specifications
Torsional Recovery of Polymer Modified Binders
- Publication no: ATM-122-22
- Published: 26 July 2022
- Edition: 4.0
- PDF (free) Download
This test method sets out the procedure for the determination of torsional recovery of polymer modified binders (PMBs) under specific conditions using a simple torsional recovery test apparatus.
PMBs are thought to provide benefits due to their increased elastic behaviour. A simple means of determining the elastic properties of a PMB is to measure its torsional recovery. The torsional recovery test is simple and can be readily utilised for routine quality control purposes.
This test method can also be downloaded as a Word document.
Edition 4.0 published July 2022
- Updates cross references to Austroads Test Methods in Section 1 and 4.1.
Edition 3.0 published January 2022 (PDF | Word)
- New template applied
- Commentary amended
- Safety Disclaimer added
- Notes integrated into body of test method
- References, Apparatus and test procedures, Calculation and information to be reported, Figure 3.1 and Equation 3 substituted
- Figure 3.2, Equation 1, Equation 2 and Appendix A added.
Edition 2.0 published March 2006
Edition 1.0 published June 2005
- 1. References
- 2. Principle
- 3. Apparatus
- 4. Procedure
- 4.1 Sample Preparation
- 4.2 Measurement
- 5. Calculation
- 6. Information to be Reported
- 7. Precision
- Appendix A Example of a Bolt Assembly Containing an Optional Pointer (Informative)
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