ASPHALT EXAM; QUESTIONS AND ANSWERS

ASPHALT EXAM; QUESTIONS AND ANSWERS



Asphalt is a _________________ material- which means it is a
_________________ based material, soluble in ___________
__________________ - ANSWER Bituminous
Hydrocarbon
Carbon Disulfide


Asphalt is produced from _________________ ____ __________ ______ -
ANSWER Distillation of crude oil


Asphalt, like Portland cement & water, is a ___________ - ANSWER Binder


Concrete is the mix of __________ & __________ - ANSWER Binder &
aggregate


Asphalt is a constituent of most ________________ - ANSWER Petroleum


__________ ___________ is refined to separate the various fraction & recover
the asphalt - ANSWER Crude petroleum


Asphalt occurs within a __________ ______ called rock asphalt - ANSWER
Porous rock (natural deposits)


Asphalt is actually _____________ __________ - ANSWER Asphaltic
Concrete

, Concrete is actually ___________ ____________ _____________ - ANSWER
Portland Cement Concrete


Asphalt cement was used for _____________________ in Egypt - ANSWER
Mummification


First use of Asphalt in US? - ANSWER 1838-Philadelphia
1870- New Jersey


What is fractional distillation? - ANSWER Crude oil is heated up & lighter
oils vaporize & are drawn off; residual material is asphalt cement.


What is destructive distillation? - ANSWER Crude oil is heated under pressure
to a higher temperature than fractional; remaining material is cracked asphalt.


Asphalt is a ________ to ________ bituminous material - ANSWER Dark to
black


Predominant constituent is ______________ - ANSWER Bitumens


Bitumens are _________, __________ & _________ materials that are
naturally occurring organic by-products of decomposed organic materials. -
ANSWER Black, oily & viscous


Asphalt is _______ or ____________ (hardness) - ANSWER Solid or semi-
solid