ASTM D2026 Standard Specification for Cutback Asphalt (Slow-Curing Type)
1. Scope
1.1 This specification covers cutback petroleum asphalts of the slow-curing type for use in the construction and treatment of pavements.

1.2 Units - The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

2. Referenced Documents
2.1 ASTM Standards:
D92 Test Method for Flash and Fire Points by Cleveland Open Cup Tester
D95 Test Method for Water in Petroleum Products and Bituminous Materials by Distillation
D113 Test Method for Ductility of Bituminous Materials
D140 Practice for Sampling Bituminous Materials
D243 Test Method for Residue of Specified Penetration
D402 Test Method for Distillation of Cutback Asphaltic (Bituminous) Products
D2042 Test Method for Solubility of Asphalt Materials in Trichloroethylene
D2170 Test Method for Kinematic Viscosity of Asphalts (Bitumens)

3. Properties
3.1 The cutback asphalt shall not foam when heated to application temperature and shall conform to the requirements prescribed in Table 1.

4. Test Methods
4.1 The material shall be sampled in accordance with Practice D140, and the properties enumerated in this specification shall be determined in accordance with the following ASTM test methods:
4.1.1 Flash Point (Cleveland Open Cup) - Test Method D92.

4.1.2 Viscosity, Kinematic - Test Method D2170.

4.1.3 Distillation - Test Method D402.

NOTE 1 - If a 100-mL graduate does not permit sufficiently close readings to determine conformity to this specification with the desired accuracy, receivers graduated in 0.1-mL divisions shall be used.

4.1.4 Asphalt Residue - Test Method D243.

4.1.5 Ductility - Test Method D113.

4.1.6 Solubility in Trichloroethylene - Test Method D2042.

4.1.7 Water - Test Method D95.