ASTM D7312-10
Standard Test Method for Determining the Permanent Shear Strain and Complex Shear Modulus of Asphalt Mixtures Using the Superpave Shear Tester (SST)

Standard No.

ASTM D7312-10

Release Date

2010

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D7312-10

Scope

The test procedures and associated analysis techniques described in this method can be used to determine complex shear modulus and permanent shear strain of asphalt mixtures. The shear frequency sweep test at constant height can be used to determine the complex shear modulus of a mixture. The repeated shear test at constant height can be used to determine permanent shear strain under repeated loading.

Note 48212;The complex shear modulus is used to characterize the shear behavior of the mixture, and the permanent shear strain relates to pavement rutting.

1.1 This standard provides performance-related test procedures for the determination of stiffness complex shear modulus and permanent shear strain of asphalt mixtures using the Superpave Shear Tester (SST). This standard is applicable to the testing and analysis of modified and unmodified asphalt mixtures.

1.2 This standard is applicable to specimens prepared in a laboratory or cored from a pavement for post-construction analysis. It is intended for use with specimens having the following minimum dimensions:

ASTM D7312-10 Referenced Document

• ASTM D140 Standard Practice for Sampling Bituminous Materials
• ASTM D2041 Standard Test Method for Theoretical Maximum Specific Gravity and Density of Bituminous Paving Mixtures
• ASTM D2726 Standard Test Method for Bulk Specific Gravity and Density of Non-Absorptive Compacted Bituminous Mixtures*， 2024-04-19 Update
• ASTM D3203 Standard Test Method for Percent Air Voids in Compacted Dense and Open Bituminous Paving Mixtures
• ASTM D3549 Standard Test Method for Thickness or Height of Compacted Bituminous Paving Mixture Specimens
• ASTM D5361 Standard Practice for Sampling Compacted Bituminous Mixtures for Laboratory Testing
• ASTM D6752 Standard Test Method for Bulk Specific Gravity and Density of Compacted Bituminous Mixtures Using Automatic Vacuum Sealing Method
• ASTM D6857 Standard Test Method for Maximum Specific Gravity and Density of Bituminous Paving Mixtures Using Automatic Vacuum Sealing Method
• ASTM D6925 Standard Test Method for Preparation and Determination of the Relative Density of Asphalt Mix Specimens by Means of the Superpave Gyratory Compactor
• ASTM D75 Standard Practice for Sampling Aggregates
• ASTM D979 Standard Practice for Sampling Bituminous Paving Mixtures
• ASTM E1 Standard Specification for ASTM Thermometers
• ASTM E4 Standard Practices for Force Verification of Testing Machines

ASTM D7312-10 history

• 2010 ASTM D7312-10 Standard Test Method for Determining the Permanent Shear Strain and Complex Shear Modulus of Asphalt Mixtures Using the Superpave Shear Tester (SST)
• 2007 ASTM D7312-07 Standard Test Method for Determining the Permanent Shear Strain and Complex Shear Modulus of Asphalt Mixtures Using the Superpave Shear Tester (SST)