Pavement
The Asphaltene content of Australian Bitumens Part 1: Testing of Pre-1992 Samples
- Publication no: AP-T50-06
- ISBN: 1 921139 47 1
- Published: 30 August 2006
- PDF (free) Download
The report presents data on the asphaltene content of samples manufactured between 1956 and 1991. Asphaltene content is one of the main chemical properties used to characterise bitumen. Bitumens are generally regarded as colloids whereby clusters of asphaltenes are dispersed in an oily medium. The quantity and type of asphaltenes can have an important effect on the physical properties of the bitumen.
- AP-T50/06 The Asphaltene Content of Australian Bitumens Part 1: Testing of Pre-1992 Samples
- SUMMARY
- CONTENTS
- TABLES
- FIGURES
- 1. INTRODUCTION
- 1.1. Bitumen chemistry
- 1.2. Asphaltenes
- 1.3. Asphaltene separation procedures
- 2. ARRB ASPHALTENES TEST PROCEDURE
- 2.1. Background
- 2.2. ARRB method
- 3. ARRB BITUMEN LIBRARY
- 4. BITUMEN MANUFACTURE
- 4.1. Straight run bitumens
- 4.2. Blown bitumens
- 4.3. Propane precipitated asphalt bitumens
- 5. ASPHALTENE RESULTS
- 6. DISCUSSION
- 6.1. Reduction in asphaltene content over the period studied
- 6.2. Tender bitumens
- 6.3. Change in temperature susceptibility
- 6.4. SHRP bitumens
- 7. CONCLUDING REMARKS
- REFERENCES
- INFORMATION RETRIEVAL
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