2. INTRODUCTION
Bitumen is an oil based
substance. It is a semi-
solid hydrocarbon
product produced by
removing the lighter
fractions (such as liquid
petroleum gas, petrol
and diesel) from heavy
crude oil during the
refining process.
3. Bitumen is a mixture of about 300 - 2000
chemical components, with an average of
around 500 - 700. Elementally, it is around
87 to 92% carbon and 6 to 8%hydrogen ,
and up to 5% sulphur, 1% nitrogen, 1%
oxygen.