Standard Specification for
Polymer-Modified Cationic
Emulsified Asphalt
AASHTO Designation: M 316-99 (2007)
SCOPE
This specification covers grades of polymer-modified cationic emulsified asphalt for use
in pavement construction. The modifier may be either a solid or latex polymer. The modifier may be added either to the asphalt binder or during the
emulsification process.
REFERENCED DOCUMENTS
AASHTO Standards:
- T 40, Sampling Bituminous Materials
- T 59, Testing Emulsified Asphalts
DEFINITIONS
CRS-2P-A cationic emulsion made with base asphalt binder typically modified with styrene•
butadiene or styrene-butadiene styrene block copolymers.
CRS-2L-A cationic emulsion made with base asphalt binder typically modified with styrene•
butadiene rubber latex or polychloroprene latex.
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