ASTM D7944-22 PDF Download

ASTM D7944-22 is a standard practice that provides guidelines for the recovery of emulsified asphalt residue using a vacuum oven. The scope of this practice covers the recovery of the residue from emulsified asphalts composed primarily of a semisolid or liquid asphaltic base, water, and an emulsifying agent. It also includes emulsified asphalts that may contain polymeric modifiers or latex polymer modifiers.

The standard emphasizes that the asphalt base may be pre-modified with polymeric modifiers or latex polymer modifiers through co-milling or post-emulsion blending. The practice does not consider the notes and footnotes (excluding those in tables and figures) as requirements of the standard.