4. Bitumen composition
The search for bitumen's chemical formula has been a passion for researchers for a very long time, and even today there are questions about its composition. The numerous works in the literature
The great complexity and variety of the hundreds of thousands of molecules that make up bitumen leads to its separation into large generic fractions whose characteristics and distribution will explain the bitumen's properties.
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The first operation involves separating the larger molecules by precipitation using an aliphatic solvent, most often normal heptane (nC 7 ). The precipitated fraction is called...
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Bitumen composition
References
Organizations
The bibliographical references relating to bitumens and bituminous binders are extremely numerous and cannot be grouped together in a single work. For this reason, readers are invited to consult the sites listed below:
• Oil Standards Bureau (BNPé)
• French Petroleum Institute (IFP)...
Standards
Specific standards are mentioned in the text. Here, the reader will find a summary of the specification standards and general test methods that apply upstream of the specific methods. The latter must be included in the specification standards which use them.
To keep the text as short as possible, the titles of the standards listed below have been kept to a strict minimum. As a general rule, only the...
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