FDOT ASPHALT PAVING LEVEL 1 LATEST
EXAMINERS QUESTIONS AND ANSWERS SURE A+
✔✔Step 3 for figuring the tack spread rate - ✔✔Use the distributor chart to find the
gallons used
start 11/13 - 1319 gal
end 18/14 - 1140 gal
1319 - 1140 = gallons used
✔✔Step 4 for figuring the tack spread rate - ✔✔Find the correction factor on the
temperature sheet corresponding to the correct liquid to convert the gallons to 60F
EX: 160F correction factor = 0.9756
gallons used x correction factor = gallons at 60F
✔✔Step 5 for figuring the tack spread rate - ✔✔gallons used at 60F / syds = tack
spread rate
✔✔What is the application rate for ARMI layers? - ✔✔0.6 - 0.8 gal/syd
Use the AC(ARB) temperature correction factor
✔✔What is the spread rate for the chip spreader? - ✔✔0.26 to 0.33 ft/syd
with the actual spread rate determined by the engingeer
✔✔What is the minimum thickness for asphalt being placed over an ARMI layer? - ✔✔1
1/2 inches unless plans call for a thicker mat
✔✔Where should you stick a thermometer in a truck? - ✔✔The hole should be 1/4 of an
inch
In the middle third of the length of the body
and 6 to 10 inches above the bottom of the bed
, ✔✔How much asphalt should be in front of the screed being mixed by the augers? -
✔✔The proper head of material is at the center of the auger shaft
✔✔While the paver is moving the augers should be moving - ✔✔80 - 90 % of the time
✔✔Screed heaters can not be used to do what - ✔✔raise the heat of the mix
✔✔When matching paved joints you must have a - ✔✔Joint matcher ( sonic or shoe
paddles)
✔✔The ski pole for the join matcher has to be how long - ✔✔25ft
✔✔Longitudinal (horizontal when facing down the road) joint should always be
staggered how far apart - ✔✔6 to 12 inches
✔✔While paving an unsupported edge the edge can no deviate more than how far from
the string line? - ✔✔+/- 1.5"
✔✔Tapers are required on joints when the adjacent travel lanes has a difference in
elevation - ✔✔greater than 1 1/2
✔✔For the rolling straight edge the deficiencies must be fixed when - ✔✔greater than
3/16'
Mark 50 feet from each side of the start and end of the deficiency
✔✔What is the compaction temperature range? - ✔✔180 - 300F
Anything below is the stop point, can't achieve any more compaction
✔✔The formula for Pounds per linear inch is - ✔✔PLI = roller weight LB / sum of drum
widths IN
✔✔To increase the compactive effort you can - ✔✔Increase the air pressure (traffic
roller)
Increase the weight
Slow down the paver (increase dwell time)
✔✔Amplitude is what? - ✔✔How high the roller jumps
✔✔Frequency is what? - ✔✔The frequency in the vibration cycles that rotate per minute
✔✔Impact spacing is what? - ✔✔Is the spacing of the impacts of the applied force is a
function of the frequency of the vibration and the travel speed.
There should be 10 - 12 impacts per foot
EXAMINERS QUESTIONS AND ANSWERS SURE A+
✔✔Step 3 for figuring the tack spread rate - ✔✔Use the distributor chart to find the
gallons used
start 11/13 - 1319 gal
end 18/14 - 1140 gal
1319 - 1140 = gallons used
✔✔Step 4 for figuring the tack spread rate - ✔✔Find the correction factor on the
temperature sheet corresponding to the correct liquid to convert the gallons to 60F
EX: 160F correction factor = 0.9756
gallons used x correction factor = gallons at 60F
✔✔Step 5 for figuring the tack spread rate - ✔✔gallons used at 60F / syds = tack
spread rate
✔✔What is the application rate for ARMI layers? - ✔✔0.6 - 0.8 gal/syd
Use the AC(ARB) temperature correction factor
✔✔What is the spread rate for the chip spreader? - ✔✔0.26 to 0.33 ft/syd
with the actual spread rate determined by the engingeer
✔✔What is the minimum thickness for asphalt being placed over an ARMI layer? - ✔✔1
1/2 inches unless plans call for a thicker mat
✔✔Where should you stick a thermometer in a truck? - ✔✔The hole should be 1/4 of an
inch
In the middle third of the length of the body
and 6 to 10 inches above the bottom of the bed
, ✔✔How much asphalt should be in front of the screed being mixed by the augers? -
✔✔The proper head of material is at the center of the auger shaft
✔✔While the paver is moving the augers should be moving - ✔✔80 - 90 % of the time
✔✔Screed heaters can not be used to do what - ✔✔raise the heat of the mix
✔✔When matching paved joints you must have a - ✔✔Joint matcher ( sonic or shoe
paddles)
✔✔The ski pole for the join matcher has to be how long - ✔✔25ft
✔✔Longitudinal (horizontal when facing down the road) joint should always be
staggered how far apart - ✔✔6 to 12 inches
✔✔While paving an unsupported edge the edge can no deviate more than how far from
the string line? - ✔✔+/- 1.5"
✔✔Tapers are required on joints when the adjacent travel lanes has a difference in
elevation - ✔✔greater than 1 1/2
✔✔For the rolling straight edge the deficiencies must be fixed when - ✔✔greater than
3/16'
Mark 50 feet from each side of the start and end of the deficiency
✔✔What is the compaction temperature range? - ✔✔180 - 300F
Anything below is the stop point, can't achieve any more compaction
✔✔The formula for Pounds per linear inch is - ✔✔PLI = roller weight LB / sum of drum
widths IN
✔✔To increase the compactive effort you can - ✔✔Increase the air pressure (traffic
roller)
Increase the weight
Slow down the paver (increase dwell time)
✔✔Amplitude is what? - ✔✔How high the roller jumps
✔✔Frequency is what? - ✔✔The frequency in the vibration cycles that rotate per minute
✔✔Impact spacing is what? - ✔✔Is the spacing of the impacts of the applied force is a
function of the frequency of the vibration and the travel speed.
There should be 10 - 12 impacts per foot
