ASTM D977-20 PDF Download

The ASTM D977-20 standard outlines the requirements for various grades of emulsified asphalt used in pavement construction. The standard emphasizes the importance of ensuring the homogeneity of the emulsified asphalt after thorough mixing and mandates testing to be carried out within 14 days of delivery. Any asphalt that has separated due to freezing is exempted from testing.

The standard specifies that materials should be sampled and tested appropriately. It outlines several physical requirements that the emulsified asphalt must conform to, including viscosity, storage stability, demulsibility, coating ability, water resistance, cement mixing, residue by distillation, oil distillate, ductility, solubility in trichloroethylene, and behavior during sieve, penetration, and float tests.