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Asphalt Binders Exam 2 Questions with
What is asphalt? - âœâ€Ã¢Å“â€generally a by-product of petroleum distillation; a complex hydrocarbon; soluble
in petroleum products; can be naturally-occuring
What is tar? - âœâ€Ã¢Å“â€generally a by-product of coal production; resistant to petroleum products
How can a source of asphalt be identified? - âœâ€Ã¢Å“â€by solubility tests
Where was asphalt obtained from originally? - âœâ€Ã¢Å“â€Island of Trinidad and Venezuela; lakes
What are petroleum-based asphalts? - âœâ€Ã¢Å“â€a waste product from refinery-processing of crude oil;
"bottom of the barrel"; properties depend on refinery operations and composition depends on crude
source
What are the three bituminous material types? - âœâ€Ã¢Å“â€1. asphalt cement/hot mix asphalt
2. emulsified asphalt
3. cutback asphalt
What are emulsified asphalts composed of? - âœâ€Ã¢Å“â€asphalt cement, water, and an emulsifying agent
What are cutback asphalts composed of? - âœâ€Ã¢Å“â€asphalt cement with petroleum solvent
What are the basic steps of refinery operation? - âœâ€Ã¢Å“â€1. pumping
2. storage
3. heating
4. distillation
5. condensing and cooling
6. separation
Asphalt Binders Exam 2 Questions with
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