Construction Materials Exam 3
Questions with Correct Answers
penetration grading - ANSWERSThe type of "grading" of asphalt binder that involves...
plunging a needle with a mass of 100 grams into the asphalt
Viscosity grading - ANSWERSThe type of "grading" of asphalt binder that involves...
determining the time taken by 50 cm3 volume of material to flow from a cup through a
specified orifice
performance grading - ANSWERSThe type of "grading" of asphalt binder that involves...
flash point, viscosity, dynamic shear, bending, and tenstion testing; as well as field
performance
aged residue viscosity grading - ANSWERSThe type of "grading" of asphalt binder that
involves...
a viscosity test is taken on asphalt that has simulated aging is the rolling thin-film oven
(RTFO)
rolling thin film oven - ANSWERSThe method used in the preparation of asphalt binder
that simulates short term aging to simulate hardening during construction
pressure aging vessel - ANSWERSmethod used to simulate long-term aging to simulate
hardening in service
5% - 7% - ANSWERSThe "typical" range for asphalt (i.e. binder) by weight in an HMA
design would be
rutting - ANSWERSpavement failure due to...
accumulation of permanent deformation in the wheel path
due to soft pavement
fatigue cracking - ANSWERSpavement failure due to...
repeated bending
thermal cracking - ANSWERSpavement failure due to...
temperature gradient
, excessive surface roughness - ANSWERSpavement failure due to...
aging
aging and oxidation of the binder - ANSWERSpavement failure due to...
stiffening
stripping - ANSWERSpavement failure due to...
loss bond between binder and aggregate from moisture
3% - 5% - ANSWERSThe "typical" range of percent of air in an HMA design is
become hard - ANSWERSAt low temperatures we would expect asphalt to
viscous (fluid like), elastic (solid like) - ANSWERSasphalt is _____ at high temperatures
and _____ at low temperatures
asphalt cutback - ANSWERStype of asphalt
produced by dissolving asphalt cement in a solvent
asphalt emulsion - ANSWERStype of asphalt
produced by dissolving asphalt cement in a solvent with and emulsifier
asphalt concrete (HMA) - ANSWERStype of asphalt
produced by combining asphalt binder with aggregate
true - ANSWERS(T/F) emulsion is preferred over cutback
emulsion and cutback - ANSWERStype(s) of asphalt used for cold mix applications
cation - ANSWERSion with positive charge
anionic - ANSWERSion with negative charge
naturally occurring or refined by oil - ANSWERSAsphalt is obtained/produced by...
PG [high temp grade] - [low temp grade (neg)]
performance grading - ANSWERSPG # - #
define #s
define PG
cutback
Questions with Correct Answers
penetration grading - ANSWERSThe type of "grading" of asphalt binder that involves...
plunging a needle with a mass of 100 grams into the asphalt
Viscosity grading - ANSWERSThe type of "grading" of asphalt binder that involves...
determining the time taken by 50 cm3 volume of material to flow from a cup through a
specified orifice
performance grading - ANSWERSThe type of "grading" of asphalt binder that involves...
flash point, viscosity, dynamic shear, bending, and tenstion testing; as well as field
performance
aged residue viscosity grading - ANSWERSThe type of "grading" of asphalt binder that
involves...
a viscosity test is taken on asphalt that has simulated aging is the rolling thin-film oven
(RTFO)
rolling thin film oven - ANSWERSThe method used in the preparation of asphalt binder
that simulates short term aging to simulate hardening during construction
pressure aging vessel - ANSWERSmethod used to simulate long-term aging to simulate
hardening in service
5% - 7% - ANSWERSThe "typical" range for asphalt (i.e. binder) by weight in an HMA
design would be
rutting - ANSWERSpavement failure due to...
accumulation of permanent deformation in the wheel path
due to soft pavement
fatigue cracking - ANSWERSpavement failure due to...
repeated bending
thermal cracking - ANSWERSpavement failure due to...
temperature gradient
, excessive surface roughness - ANSWERSpavement failure due to...
aging
aging and oxidation of the binder - ANSWERSpavement failure due to...
stiffening
stripping - ANSWERSpavement failure due to...
loss bond between binder and aggregate from moisture
3% - 5% - ANSWERSThe "typical" range of percent of air in an HMA design is
become hard - ANSWERSAt low temperatures we would expect asphalt to
viscous (fluid like), elastic (solid like) - ANSWERSasphalt is _____ at high temperatures
and _____ at low temperatures
asphalt cutback - ANSWERStype of asphalt
produced by dissolving asphalt cement in a solvent
asphalt emulsion - ANSWERStype of asphalt
produced by dissolving asphalt cement in a solvent with and emulsifier
asphalt concrete (HMA) - ANSWERStype of asphalt
produced by combining asphalt binder with aggregate
true - ANSWERS(T/F) emulsion is preferred over cutback
emulsion and cutback - ANSWERStype(s) of asphalt used for cold mix applications
cation - ANSWERSion with positive charge
anionic - ANSWERSion with negative charge
naturally occurring or refined by oil - ANSWERSAsphalt is obtained/produced by...
PG [high temp grade] - [low temp grade (neg)]
performance grading - ANSWERSPG # - #
define #s
define PG
cutback
