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Significance and Use
5.1 The theoretical maximum specific gravities and densities of asphalt mixtures are fundamental properties whose values are influenced by the composition of the mixture in terms of types and amounts of aggregates, asphalt binder, and other materials present in the mixtures.
5.1.1 Maximum specific gravity is used (1) in the calculation of air voids in the compacted asphalt mixture, (2) in calculating the amount of asphalt binder absorbed by the aggregate, and (3 ) to provide target values for the compaction of asphalt mixtures.
Note 1: The quality of the results produced by this standard are dependent on the competence of the personnel performing the procedure and the capability, calibration, and maintenance of the equipment used. Agencies that meet the criteria of Specification are generally considered capable of competent and objective testing, sampling, inspection, etc. Users of this standard are cautioned that compliance with Specification alone does not completely ensure reliable results. Reliable results depend on many factors; following the suggestions of Specification or some similar acceptable guideline provides a means of evaluating and controlling some of those factors.
1.1 This test method covers the determination of the theoretical maximum specific gravity and density of uncompacted asphalt mixtures at 25 °C [77 °F].
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.
1.2.1 Residual pressure measurements are shown in both the SI unit of kPa and the commonly used nonstandard equivalent unit of “mm of Hg.”
1.2.2 Measurements of volume and mass are only given in SI units because they are the only units typically used in practice when performing this test method.
1.3 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials
D8 Terminology Relating to Materials for Roads and Pavements
D979/D979M Practice for Sampling Bituminous Paving Mixtures
D3666 Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials
D4753 Guide for Evaluating, Selecting, and Specifying Balances and Standard Masses for Use in Soil, Rock, and Construction Materials Testing
D8055 Guide for Selecting an Appropriate Electronic Thermometer for Replacing Mercury Thermometers in D04 Road and Paving Standards
ICS Number Code 91.100.50 (Binders. Sealing materials); 93.080.20 (Road construction materials)
UNSPSC Code 30121500(Bituminous derivatives); 30120000(Roads and landscape)
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ASTM D2041 / D2041M-19, Standard Test Method for Theoretical Maximum Specific Gravity and Density of Asphalt Mixtures, ASTM International, West Conshohocken, PA, 2019, www.astm.orgBack to Top