ᱮᱨᱚᱵᱤᱠ ᱫᱚ ᱫᱚᱦᱲᱟ ᱛᱮ ᱵᱮᱱᱟᱣ ᱟᱠᱟᱱᱟ

Vegetable pitch has good fluidity at room temperature. After being uniformly mixed with petrochemical bitumen, it plays a role of thickening to a certain extent. It will increase the adhesion and affinity of bitumen with calcium carbonate or stone, and it is not easy to be stratified by settlement, so as to make the spread more uniform.