AS/NZS 2341.13:1997

1 - AS/NZS 2341.13:1997 METHODS OF TESTING BITUMEN AND RELATED ROADMAKING PRODUCTS - LONG-TERM EXPOSURE TO HEAT AND AIR
1 - 1 SCOPE
1 - 2 REFERENCED DOCUMENTS
1 - 3 APPLICATION
2 - 4 PRINCIPLE
2 - 5 MATERIALS
2 - 6 APPARATUS
2 - 6.1 Air supply
2 - 6.2 Flowmeter
2 - 6.3 Heating and mixing assembly
2 - 6.4 Oven
6 - 6.5 Oven monitoring thermometer
6 - 6.6 Sample bottles
6 - 6.7 Sliding plate microviscometer
6 - 7 SETTING THE OVEN TEMPERATURE
7 - 8 PROCEDURE
7 - 8.1 Cleaning the sample bottles
7 - 8.2 Deposition of the bitumen film on the walls of the sample bottles
8 - 8.3 Exposure of the bitumen film
8 - 8.4 Recovery and mixing of the exposed bitumen
8 - 8.5 Measurement of the apparent viscosity after treatment
8 - 9 CALCULATION AND EXPRESSION OF RESULTS
11 - 10 REPORT
12 - 11 PRECISION
13 - APPENDIX A - METHOD FOR SETTING THE OVEN TEMPERATURE- PLATINUM RESISTANCE THERMOMETER PROBE
13 - A1 SCOPE
13 - A2 APPARATUS
13 - A2.1 Platinum resistance thermometer probe
14 - A2.2 Resistance bridge
14 - A3 PROCEDURE
16 - APPENDIX B - METHOD FOR SETTING THE OVEN TEMPERATURE- MERCURY-IN-GLASS THERMOMETER
16 - B1 SCOPE
16 - B2 APPARATUS
16 - B2.1 Calibrating thermometer (IP 32C)
16 - B2.2 Sample bottle
16 - B3 PROCEDURE

This Standard sets out a method based on the accelerated aging of bitumen to determine the time required for bitumen to reach a viscosity level associated with distress in pavement surfacings.

SCOPE This Standard sets out a method based on the accelerated aging of bitumen to determine the time required for bitumen to reach a viscosity level associated with distress in pavement surfacings.NOTES:1 The results of the test may be used to predict likely resistance to hardening of a bitumen in sprayed surfacings and in thin asphalt surfacings which are permeable to air.2 The method takes too long to be used for 'day-to-day' quality control and is intended for occasional checking of quality, particularly where there has been a change in refinery crude feedstock or processing.

First published as AS 2341.13-1980.Second edition 1986.Jointly revised and designated AS/NZS 2341.13:1997.Reconfirmed 2013. Originated as AS 2341.13-1980. Second edition 1986. Jointly revised and designated AS/NZS 2341.13:1997.