ASTM D7552-22
Standard Test Method for Determining the Complex Shear Modulus (G*) of Asphalt Mixtures Using Dynamic Shear Rheometer

Standard No.

ASTM D7552-22

Release Date

2022

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D7552-22

Scope

1.1 This test method covers the determination of the complex shear modulus of asphalt mixtures using torsion rectangular geometry on a dynamic shear rheometer (DSR). It is applicable to asphalt mixtures having complex shear modulus values greater than 1 × 104 Pa when tested over a range of temperatures from –40 °C to 76 °C at frequencies of 0.01 to 25 Hz and strains of 0.0005 % to 0.1 %. The determination of complex shear modulus is typically determined at 20 °C to 70 °C at 0.01 % strain at ten discrete frequency values covering 0.01 to 10 Hz. From these data, temperature or frequency master curves can be generated as required. This test method is intended for determining the complex shear modulus of asphalt mixtures as required for specification testing or quality control of asphalt mixture production. 1.2 This test method is appropriate for laboratory-prepared and compacted mixtures, field-produced and laboratorycompacted mixtures or field cores, regardless of binder type or grade and regardless of whether RAP is used in the mixture. Due to the geometry of the specimens being tested this test method is not applicable to open-graded or SMA mixtures. It has been found to be appropriate for dense-graded mixtures, whether coarseor fine-graded, with 19 mm or smaller nominal maximum aggregate size. 1.3 Since a precision estimate for this standard has not been developed, the test method is to be used for research and informational purposes only. Therefore, this standard should not be used for acceptance or rejection of a material for purchasing purposes. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 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. 1.6 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. 1.7 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.

ASTM D7552-22 Referenced Document

• ASTM D2041/D2041M Standard Test Method for Theoretical Maximum Specific Gravity and Density of Asphalt Mixtures
• ASTM D3203 Standard Test Method for Percent Air Voids in Compacted Dense and Open Bituminous Paving Mixtures
• ASTM D3666 Standard Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials*， 2024-04-22 Update
• ASTM D6752/D6752M Standard Test Method for Bulk Specific Gravity and Density of Compacted Asphalt Mixtures Using Automatic Vacuum Sealing Method*， 2023-11-01 Update
• ASTM D6857/D6857M Standard Test Method for Maximum Specific Gravity and Density of Asphalt Mixtures Using Automatic Vacuum Sealing Method*， 2023-11-01 Update
• ASTM D6925 Standard Test Method for Preparation and Determination of the Relative Density of Asphalt Mix Specimens by Means of the Superpave Gyratory Compactor*， 2023-12-01 Update
• ASTM D6926 Standard Practice for Preparation of Asphalt Mixture Specimens Using Marshall Apparatus
• ASTM D7175 Standard Test Method for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer*， 2024-01-25 Update
• ASTM D7312 Standard Test Method for Determining the Permanent Shear Strain and Complex Shear Modulus of Asphalt Mixtures Using the Superpave Shear Tester (SST)*， 2024-04-22 Update
• ASTM D8 Standard Terminology Relating to Materials for Roads and Pavements
• ASTM E644 Standard Test Methods for Testing Industrial Resistance Thermometers
• ASTM E77 Standard Test Method for Inspection and Verification of Thermometers

ASTM D7552-22 history

• 2022 ASTM D7552-22 Standard Test Method for Determining the Complex Shear Modulus (G*) of Asphalt Mixtures Using Dynamic Shear Rheometer
• 2014 ASTM D7552-09(2014) Standard Test Method for Determining the Complex Shear Modulus (G*) Of Bituminous Mixtures Using Dynamic Shear Rheometer
• 2009 ASTM D7552-09 Standard Test Method for Determining the Complex Shear Modulus (G*) Of Bituminous Mixtures Using Dynamic Shear Rheometer