1
Construction Materials - Asphalt Questions
with Correct Answers for Specific Exam Mail
what are bituminous materials?
Ans: a solid, semisolid or viscous material, natural or manufactured,
composed principally of various mixtures of complex hydrocarbons
asphalts
Ans: cementitious materials composed largely of bitumens
tars
Ans: condensate from destructive distillation of petroleum, coal, wood, or
shale
what did the pitch drop experiment demonstrate?
Ans: demonstrates the fluidity and high viscosity of pitch, a derivative of tar
once used for waterproofing boats
natural asphalts
Ans: - lake asphalt
- gilsonite
- rock asphalt
qualities of petroleum asphalt
Pretest - Stuvia US
, 2
Ans: - fractional distillation: distill above 900F to drive off volatiles
- destructive distillation: above 1100F for cracking
classification of petroleum asphalts
Ans: - asphalt cement
- cutback asphalt
- emulsified asphalt
qualities of asphalt cement
Ans: - blend of hydrocarbons of different molecular weights
- heavier molecular-weight hydrocarbons, harder and more viscous
- semisolid materials at room temp
- heated before applying
- most common binder material used in pavements
what are liquid asphalt-cutbacks
Ans: produced by dissolving asphalt cement in a lighter molecular weight
hydrocarbon solvent
advantage of liquid asphalt-cutbacks
Ans: applied easily in the field without heating
disadvantages of liquid asphalt-cutbacks
Pretest - Stuvia US
Construction Materials - Asphalt Questions
with Correct Answers for Specific Exam Mail
what are bituminous materials?
Ans: a solid, semisolid or viscous material, natural or manufactured,
composed principally of various mixtures of complex hydrocarbons
asphalts
Ans: cementitious materials composed largely of bitumens
tars
Ans: condensate from destructive distillation of petroleum, coal, wood, or
shale
what did the pitch drop experiment demonstrate?
Ans: demonstrates the fluidity and high viscosity of pitch, a derivative of tar
once used for waterproofing boats
natural asphalts
Ans: - lake asphalt
- gilsonite
- rock asphalt
qualities of petroleum asphalt
Pretest - Stuvia US
, 2
Ans: - fractional distillation: distill above 900F to drive off volatiles
- destructive distillation: above 1100F for cracking
classification of petroleum asphalts
Ans: - asphalt cement
- cutback asphalt
- emulsified asphalt
qualities of asphalt cement
Ans: - blend of hydrocarbons of different molecular weights
- heavier molecular-weight hydrocarbons, harder and more viscous
- semisolid materials at room temp
- heated before applying
- most common binder material used in pavements
what are liquid asphalt-cutbacks
Ans: produced by dissolving asphalt cement in a lighter molecular weight
hydrocarbon solvent
advantage of liquid asphalt-cutbacks
Ans: applied easily in the field without heating
disadvantages of liquid asphalt-cutbacks
Pretest - Stuvia US
