- Condensed asphalt consist of two types:
+ Bitum condensed asphalt: the condensed asphalt originating from oil
+Tar condensed asphalt: the condensed asphalt origanating from coal
Within the material, we just mention Bitum condensed asphalt.
- 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
- Condensed asphalt is waterproof but can be dissolved in benzen (C6H6), cloruafooc (CHCl3), disulfur cacbon (CS2), and some other organic solvents
- Depending on the manufaturing condition, condensed asphalt is classified into labeling asphalt with different needle deflection. This material refers to 5 degree of needle deflection of condensed asphalt : 40/60, 60/70, 70/100, 100/150, 150/250.
- Condensed asphalt heated to appropriate temperature (1630C) and mixed with such
materials as stone, sand, gravel in suitable proportion will become asphalt concrete.
- Condensed asphalt mixed in appropriate proportion with oil, diezel, will become liquid
asphalt and mixed with emulsifying agents and water will become emulsion asphalt
Application
- The main application of condensed asphalt is to produce asphalt concrete, liquid
asphalt, and asphalt emulsion for the construction of road and transport works.
- Besides, condensed asphalt can be used to process surface, waterproof or connect the
shingles in construction industry.
Package – Preservation
Commercial condensed asphalt consists of two main types:
- Condensed asphalt in liquid form: stored, transported by specialized equipments such as asphalt transporting ships, tanks, pipes, asphalt tankers with insulation, heating system to ensure the temperature of asphalt from 120oC to 145oC .
- Condensed asphalt in barrel: stored, transported by barrels with capacity of 150 to 200 litre in normal temperature condition.
SAFETY – ENVIRONMENT
Condensed asphalt is an oil refining product so it can be harmful or badly affects the environment and human health if not preserved and used in accordance with proper technical procedure.
Especially for liquid asphalt, due to the fact that it is usually stored in high temperature, the chances of fire, explosion and burning during transporting and using process are likely.