Asphalt Paving Level 1 QUESTIONS AND ANSWERS
A full lot is composed of 5 sublots and 4 cores per lot T/F - ANSWER False
What is the most important for consistent compaction of asphalt mix?
The mix is hotter in temperature
The mix is colder in temperature
The mix is uniform in t...
A full lot is composed of 5 sublots and 4 cores per lot T/F - ANSWER False
What is the most important for consistent compaction of asphalt mix?
The mix is hotter in temperature
The mix is colder in temperature
The mix is uniform in temperature
Temperature of the mix does not affect compaction - ANSWER The mix is uniform in
temperature
Referring to general stationing guidelines, R1 would be ____ than R2
Closer to centerline
Closer to outside shoulder
Closure to the inside shoulder
Both A and C - ANSWER Both A and C
While using the rolling straightedge, if the needle goes in the red zone indicating an
unacceptable high spot in the section, you then - ANSWER Mark the pavement where
the needle first goes into the red zone and place another mark where the needle leaves
the red zone and continue
For bridge approach slabs, the 15 foot manual straightedge should be set so ____ is on
the bridge deck.
1 inch
Exactly 1/2 of the straightedge
The entire straightedge
None of the above - ANSWER 1 inch
For the first transverse joint on a project place the ___ on the new pavement while
overlapping the transverse joint by one inch.
4 foot level
15 foot manual straight edge
Rolling straightedge
All the above - ANSWER 15 foot manual straight edge
When calibrating to check the low side of the rolling straight edge:
Place shims under the outer wheels
Place the rolling straight edge on a surface that looks flat
Place a 3/16 inch shin under each outside wheel, the gauge should read zero on both
sides of the gauge
Place shims under the center wheel - ANSWER Place a 3/16 inch shin under each
outside wheel, the gauge should read zero on both sides of the gauge
When calibrating to check the high side of the rolling straight edge:
, Place shims under the outer wheels
Place shims under the center wheel
Place the rolling straight edge on a surface that looks flat
Place a 3/16 inch shin under the center wheel. The gauge should read zero on both
sides of the gauge. - ANSWER Place a 3/16 inch shim under the center wheel. The
gauge should read zero on both sides of the gauge.
What do you need to know when manually checking the cross slope?
The level length
The lane width
Height from the end of the level to pavement surface
The diameter of the bubble in the level - ANSWER Level length and height from the end
of level to pavement surface
When paving 5 foot wide shoulders or open-graded friction course FC-5 cores should
be taken at the frequency of...
1 per 100 feet
5 per lot
5 per sub lot
1 per 1000 feet
None of the above - ANSWER None of the above
Density cores for acceptance testing are not required for:
Mix less than 1 inch thick
Shoulders less than 5 feet wide
Acceleration and deceleration lanes less than 1000 feet in length
Ramos less than 1000 feet - ANSWER All of the above
If a core sample is needed just after paving then
Coring can be done immediately
Let the pavement be cool to the touch before coring
Run extra water from the core rig while coring
Wait until the pavement surface temperature has cooled below 160 degrees before
coring - ANSWER Wait until the pavement surface temp has cooled below 160 degrees
before coring
Align the core barrel over the marked sampling location so that
It is a slight angle to the pavement
It is perpendicular to the truck bumper
It is perpendicular to the pavement surface
The top of the barrel is tilted slightly towards the truck - ANSWER It is perpendicular to
the pavement surface
How should asphalt cores be stored when transporting in hot weather?
Stacked on top of each other in a box for each project being sampled
By standing them upright in a cool shady location
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