AS/NZS 2891.3.2:1997

1 - AS/NZS 2891.3.2:1997 METHODS OF SAMPLING AND TESTING ASPHALT - BITUMEN CONTENT AND AGGREGATE GRADING-CENTRIFUGAL EXTRACTION....
1 - 1 SCOPE
1 - 2 REFERENCED DOCUMENTS
1 - 3 DEFINITIONS
1 - 4 MATERIALS
2 - 5 APPARATUS
2 - 5.1 Balances
2 - 5.2 Bitumen centrifuge extractor
2 - 5.3 Centrifuge
2 - 5.4 Metal containers
2 - 5.5 Dish
2 - 5.6 Flask
2 - 5.7 Fume cupboard
2 - 5.8 Heating device
2 - 5.9 Drying oven
2 - 5.10 Sieves
2 - 5.11 Tongs
2 - 5.12 Spatula
2 - 5.13 Wash bottle
2 - 6 SAMPLE PREPARATION
3 - 7 METHOD FOR DETERMINING BITUMEN CONTENT
3 - 7.1 Procedure
4 - 7.2 Control test
4 - 7.3 Calculations
4 - 7.3.1 Mass of test sample
5 - 7.3.2 Mass of bitumen in test sample
5 - 7.3.3 Bitumen content of test sample
5 - 8 METHOD FOR DETERMINING PARTICLE SIZE DISTRIBUTION OF AGGREGATE
5 - 8.1 Procedure
6 - 8.2 Calculation
6 - 9 PRECAUTIONS
6 - 10 REPORT

his Standard sets out the method for determining, by centrifugal extraction, the binder content of mixes containing residual bitumen, and subsequently the particle size distribution of aggregate by sieve analysis.

This Standard sets out the method for determining, by centrifugal extraction, the binder content of mixes containing residual bitumen, and subsequently the particle size distribution of aggregate by sieve analysis. This method may not be satisfactory when used with mixes made of highly absorptive aggregates.

First published as AS 2891.3.2-1991.
Jointly revised and designated AS/NZS 2891.3.2:1997.