Test Methods and Specifications
Torsional Recovery of Polymer Modified Binders
- Publication no: ATM-122-22
- Published: 26 July 2022
- 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.
- 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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