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AS/NZS 2891.14.2:1999

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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Methods of sampling and testing asphalt Field density tests - Determination of field density of compacted asphalt using a nuclear thin-layer density gauge

Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Superseded date

23-05-2024

Superseded by

AS/NZS 2891.14.2:2013

Language(s)

English

Published date

05-04-1999

€45.79
Excluding VAT

1 - AS/NZS 2891.14.2:1999 METHODS OF SAMPLING AND TESTING ASPHALT - FIELD DENSITY TESTS-DETERMINATION OF FIELD DENSITY OF....
1 - 1 SCOPE
1 - 2 REFERENCED DOCUMENTS
1 - 3 SAFETY PRECAUTIONS
2 - 4 APPARATUS
2 - 5 GAUGE CALIBRATION AND OPERATIONAL CHECKS
2 - 6 PROCEDURE
3 - 7 CALCULATION
4 - 8 TEST REPORT
4 - 8.1 Test results
4 - 8.2 General information
6 - APPENDIX A - OPERATIONAL CHECKS
6 - Al STANDARD COUNT CHECKS
7 - A2 GAUGE FUNCTION CHECKS
7 - A3 DENSITY SYSTEM CONSISTENCY CHECK
9 - APPENDIX B - DENSITY ADJUSTMENTS
9 - B1 GENERAL
9 - B2 DETERMINATION OF DENSITY OFFSET DATA
9 - B3 CALCULATIONS
10 - B4 TEST REPORT
10 - B5 CHECKING AND REDETERMINATION OF DENSITY OFFSET VALUES

This Standard sets out the method for determining the field density of thin layers of asphalt using a nuclear thin-layer density gauge with two backscatter modes of operation or geometries.

Committee
CE-006
DocumentType
Standard
ISBN
0 7337 2579 1
Pages
11
PublisherName
Standards Australia
Status
Superseded
SupersededBy
Supersedes
UnderRevision

This Standard sets out the method for determining the field density of thin layers of asphalt using a nuclear thin- layer density gauge with two backscatter modes of operation or geometries. The gauge simultaneously determines, by the independent backscatter geometries, two values of gross mass per unit volume. The density of the top layer of asphalt of selected thickness is estimated by mathematically eliminating the influence from the underlying layer(s).The method is applicable to asphalt layers between 25 mm and 100 mm thick and to asphalts having a nominal maximum size not greater than 40 mm.The method does not detail the operation of the gauge but refers the operator to the manufacturer's handbook.When nuclear gauges are used for density measurement, the quantity of material being assessed is not precisely known. However, reference to the manufacturer's handbook and to current literature may indicate the likely volume.A nuclear gauge gives an indirect measure of field density and, hence, requires calibration, in accordance with AS/NZS 2891.14.3. Regular checks on the operation and the calibration of the gauge are also required (see Appendix A). A density offset is determined for each material being tested (see Appendix B).

First published as AS/NZS 2891.14.2:1999.

AS 2891.1-1986 Methods of sampling and testing asphalt Sampling of asphalt
AS/NZS 2891.14.3:1999 Methods of sampling and testing asphalt - Field density tests - Calibration of nuclear thin-layer density gauge using standard blocks
AS 2891.9.1-1993 Methods of sampling and testing asphalt Determination of bulk density of compacted asphalt - Waxing procedure
AS 2891.9.2-1993 Methods of sampling and testing asphalt Determination of bulk density of compacted asphalt - Presaturation method
AS 2891.9.3-1993 Methods of sampling and testing asphalt Determination of bulk density of compacted asphalt - Mensuration method

AS 2150-2005 Hot mix asphalt - A guide to good practice
AS/NZS 2891.14.5:1999 Methods of sampling and testing asphalt Field density tests - Density ratio of compacted asphalt
AS/NZS 2891.14.3:1999 Methods of sampling and testing asphalt - Field density tests - Calibration of nuclear thin-layer density gauge using standard blocks

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