©BRIGHSTARS 2024/2025 ALL RIGHTS RESERVED.
Asphalt Exam Questions With Correct
Answers.
The three forms of asphalt - Answer✔- Asphalt cement
- asphalt cutback
- asphalt emulsion
explain asphalt cement - Answer✔-a blend of hydrocarbons of different weights. as asphalt shifts
to heavier weights it becomes harder and more viscous. (the adhesive) Asphalt cement + agg =
asphalt concrete
explain asphalt cutback - Answer✔made by dissolving asphalt cement in solvent. when sprayed
on pavement or mixed with agg it evaporates leaving asphalt residue as binder. (used for
maintenance and emulsion) cutbacks are expensive and toxic though
explain asphalt emulsion - Answer✔an alternative to dissolving asphalt in solvent, it is dispersed
in water as emulsion.
name some uses of asphalt - Answer✔- the main use of asphalt is in pavement construction and
maintenance
- another use is in sealing and waterproofing roofs and underground foundations
- asphalt concrete is used in patching asphalt and PCC pavements.
- liquid asphalts such as cutbacks and emulsions are used in pavement maintenance
What affects the consistency of asphalt most often? - Answer✔Temperature - if too cool the mix
will be too brittle and crack if too warm the mix will flow readily resulting in permanent
deformation (rutting)
the primary hydrocarbons that make up asphalt - Answer✔hydrogen and carbon with minor
components of sulfur, nitrogen, oxygen, and trace metals
the three arrangements of asphalt - Answer✔1) aliphatic or paraffin - straight or branched chains
2) saturated rings - highest hydrogen to carbon ratio
3) unsaturated rings or aromatic.
1|Page
Asphalt Exam Questions With Correct
Answers.
The three forms of asphalt - Answer✔- Asphalt cement
- asphalt cutback
- asphalt emulsion
explain asphalt cement - Answer✔-a blend of hydrocarbons of different weights. as asphalt shifts
to heavier weights it becomes harder and more viscous. (the adhesive) Asphalt cement + agg =
asphalt concrete
explain asphalt cutback - Answer✔made by dissolving asphalt cement in solvent. when sprayed
on pavement or mixed with agg it evaporates leaving asphalt residue as binder. (used for
maintenance and emulsion) cutbacks are expensive and toxic though
explain asphalt emulsion - Answer✔an alternative to dissolving asphalt in solvent, it is dispersed
in water as emulsion.
name some uses of asphalt - Answer✔- the main use of asphalt is in pavement construction and
maintenance
- another use is in sealing and waterproofing roofs and underground foundations
- asphalt concrete is used in patching asphalt and PCC pavements.
- liquid asphalts such as cutbacks and emulsions are used in pavement maintenance
What affects the consistency of asphalt most often? - Answer✔Temperature - if too cool the mix
will be too brittle and crack if too warm the mix will flow readily resulting in permanent
deformation (rutting)
the primary hydrocarbons that make up asphalt - Answer✔hydrogen and carbon with minor
components of sulfur, nitrogen, oxygen, and trace metals
the three arrangements of asphalt - Answer✔1) aliphatic or paraffin - straight or branched chains
2) saturated rings - highest hydrogen to carbon ratio
3) unsaturated rings or aromatic.
1|Page
