ASTM D7944-15 PDF

Scope: 4.1 This practice can be used to obtain residues of emulsified asphalts. The residue may be used for further testing.

4.2 As approximately 5 g of residue is typically obtained, limited testing is possible.

Note 1: Rheological characterization as described in Test Methods D7175 and D7405 are suitable test methods. Additional test methods are being developed suited to the small amounts of residue obtained.

1.1 This practice is suitable for recovery of the residue of emulsified asphalts composed principally of a semisolid or liquid asphaltic base, water and an emulsifying agent. Asphalt base may be pre-modified with polymeric modifiers or latex polymer modifiers may be incorporated into the emulsified asphalt through co-milling or post emulsified asphalt production blending.

1.2 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 and health practices and determine the applicability of regulatory limitations prior to use.

ASTM D7944-15 Referenced Document

ASTM D244 Standard Test Methods and Practices for Emulsified Asphalts
ASTM D7175 Standard Test Method for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer
ASTM D7405 Standard Test Method for Multiple Stress Creep and Recovery (MSCR) of Asphalt Binder Using a Dynamic Shear Rheometer

2022 ASTM D7944-22 Standard Practice for Recovery of Emulsified Asphalt Residue Using a Vacuum Oven
2015 ASTM D7944-15 Standard Practice for Recovery of Emulsified Asphalt Residue Using a Vacuum Oven