ACTUAL Exam Questions and CORRECT
Answers
What is asphalt cement used for? - CORRECT ANSWER - HMA, patching
What is asphalt emulsion used for? - CORRECT ANSWER - Cold mix & maintenance
applications
What is asphalt cutback used for? - CORRECT ANSWER - Cold mix & maintenance
applications
What are the properties of asphalt cement (binder)? - CORRECT ANSWER - - Adheres
well to most rock
- Waterproof
- Fairly durable
- Resistant to reaction with most acids, alkalis, and salts
- Temperature sensitive
What are the different layers of asphalt pavement? - CORRECT ANSWER - Surface, base,
subbase, and subgrade in that order
Asphalt binder is a visco-elastic material. What does that mean? - CORRECT ANSWER -
- Viscous at high temps, like a fluid
- Elastic at low temps, like a solid
- Its characteristics depend on both temperature and loading rate
What are asphalt binder's specifications based on? - CORRECT ANSWER - Physical
properties
, What is asphalt binder alone used for? - CORRECT ANSWER - For sealing and
waterproofing
What is asphalt binder + aggregate used for? - CORRECT ANSWER - Mainly for hot mix
asphalt pavement surfacing (HMA)
What is asphalt cement made of? - CORRECT ANSWER - Asphalt binder
What is asphalt concrete made of? - CORRECT ANSWER - Asphalt binder + aggregate
True or false, asphalt is highly affected by temperature? - CORRECT ANSWER - True
What does asphalt that is too brittle result in? - CORRECT ANSWER - Thermal cracking
What does asphalt that is too soft result in? - CORRECT ANSWER - Rutting
What are the different grades of asphalt? - CORRECT ANSWER - Soft (low viscosity)
asphalt
Hard (high viscosity) asphalt
Where is soft (low viscosity) asphalt used? - CORRECT ANSWER - In cold climates to
avoid thermal cracking
Where is hard (high viscosity) asphalt used? - CORRECT ANSWER - In hot climates to
avoid rutting
Bituminous materials are hydrocarbons. What are hydrocarbons? - CORRECT ANSWER -
- Very complex chemical composition that depends on the oil source and refining method