What is Bitumen or asphalt
What is Bitumen (#Asphalt)?
Asphalt is a dark brown or black cementitious material which is a natural constituent of must crude oils found throughout the word.
Asphalt is a dark brown to black ,highly viscous ,hydrocarbon produced from #petroleum #distillation residue.(US FHWA)
Is a dark brown to black cementitious material in which the predominating constituents are bitumen’s which occur in #nature or are obtained in petroleum processing. (ASTM D8)
A virtually in volatile ,#adhesive and #waterproofing material obtained by #refinery processes from crude petroleum ,or present in natural asphalt deposits in some parts of the world .it is black or brown in color and completely or nearly completely #soluble in toluene .it is very viscous or near solid at ambient temperatures and softens gradually when heated.
A class of amorphous, black or dark colored,(solid, semi-solid or viscous)
Cementitious substances, natural or #manufactured, composed principally or high molecular weight hydrocarbons, soluble in carbon disulfide, and found in asphalts, #tars, #pitches and #asphaltites.
A generic term used to denote any material composed principally of bitumen.
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Terminology _ Bitumen
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Bitumen manufacturing processes
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Definition:
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A process by which components in a chemical mixture are separated according
To their different boiling points . Vapors from boiling solutions are passed along a column. The temperature of the column gradually decreases along its length. Components with a higher boiling point condense on the column and return to the solution.
Components with the lower boiling point pass through the column and are collected.
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