Asphalt Concrete Quiz#6 with Update

Asphalt Concrete Quiz#6 with Update

Asphalt is following type of material:
A. Elastic
B. Viscous
C. Viscoelastic
D. Plastic - ✔✔C. Viscoelastic
How compaction density of asphalt is monitored during construction?
A. Collecting samples and testing in lab
B. Using nuclear density gauge
C. Using infrared camera
D. none of the above - ✔✔B. Using nuclear density gauge
Which asphalt product (emulsion or cutback) is more environmental-friendly?
A. Asphalt cement
B. Emulsion
C. Cutback asphalt
D. all of the above - ✔✔B. Emulsion
What is the benefit of cutback asphalt and emulsion over asphalt cement?
A. Economical
B. Applied at lower temperature
C. Provides more strength
D. none of the above - ✔✔B. Applied at lower temperature
Which of the followings in not one of the constituents of conventional asphalt?
A. Aspaltenes
B. Resins
C. Polymer
D. Oils - ✔✔C. Polymer
You perform a standard Penetration Test at 77oF (25oC) on a sample of asphalt cement submitted to
your laboratory for Penetration grading. The needle penetrates the sample 9.2 mm. (a) What is the
penetration value of the asphalt in "penetration units"?
A. 0.92
B. 9.2
C. 92
D. 920 - ✔✔C. 92