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ASPHALT BINDERS (EXAM 2) QUESTIONS AND CORRECT ANSWERS

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ASPHALT BINDERS (EXAM 2) QUESTIONS AND CORRECT ANSWERS What are petroleum-based asphalts? CORRECT ANSW-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? CORRECT ANSW-1. asphalt cement/hot mix asphalt 2. emulsified asphalt 3. cutback asphalt What are emulsified asphalts composed of? CORRECT ANSW-asphalt cement, water, and an emulsifying agent What are cutback asphalts composed of? CORRECT ANSW-asphalt cement with petroleum solvent

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ASPHALT BINDERS
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ASPHALT BINDERS

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Uploaded on
March 1, 2025
Number of pages
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Written in
2024/2025
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ASPHALT BINDERS (EXAM 2)
QUESTIONS AND CORRECT
ANSWERS
What are petroleum-based asphalts? ✅✅ CORRECT ANSW-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? ✅✅ CORRECT ANSW-1. asphalt cement/hot mix
asphalt

2. emulsified asphalt

3. cutback asphalt



What are emulsified asphalts composed of? ✅✅ CORRECT ANSW-asphalt cement, water, and an
emulsifying agent



What are cutback asphalts composed of? ✅✅ CORRECT ANSW-asphalt cement with petroleum
solvent



What are the basic steps of refinery operation? ✅✅ CORRECT ANSW-1. pumping

2. storage

3. heating

4. distillation

5. condensing and cooling

6. separation



What is asphalt? ✅✅ CORRECT ANSW-generally a by-product of petroleum distillation; a complex
hydrocarbon; soluble in petroleum products; can be naturally-occuring



What is tar? ✅✅ CORRECT ANSW-generally a by-product of coal production; resistant to
petroleum products

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