- Liquid asphalt is the product of mixing hot condensed asphalt with oil in appropriate proportion.
- Condensed asphalt is the product of oil refining technology; includes polymer hydrocacbua compounds such as CnH2n+2, CnH2n, aromatic ring hydrocacbua (CnH2n-6) and some odd rings containing oxygen, nitrogen, and sulphur.
- In natural state, liquid asphalt is liquid, black
- The label of liquid asphalt is specified by the degree of viscosity, which includes 5 degree: 10-20, 20-40, 40-80, 80-140, 140-250
- Based on the freezing rate, liquid asphalt can be classified into 3 types:
+ quick freezing liquid asphalt
+ medium freezing liquid asphalt
+ slow freezing liquid asphalt
- Within the material, we just mention MC 30 and MC 70 liquid asphalts, which are two medium freezing liquid asphalts with minimum viscosity of 30 and 70 and currently widely used in the construction of transport works in Vietnam.
Application
Liquid asphalt is the material in the construction of roads, and transport works. Liquid
asphalt is commonly used to sprinkle the road surface, or acts as the sticky layers
between two sheets of asphalt concrete.