FDOT ASPHALT PAVING LEVEL 1 COMPREHENSIVE
QUESTIONS AND ANSWERS SURE A+
✔✔Determining 200 Sieve Correction Factor - ✔✔P-200[Solvent] - P-200[Ignition]
✔✔Calibrated AC Formula - ✔✔AC Measured + Correction Factor
✔✔When washing a gradation sample what do you add first water or a wetting agent? -
✔✔Cover the sample with water first
✔✔What temperature do you dry a gradation sample at? - ✔✔230°F-9°F to Compaction
Temp +9°F
✔✔How long are gradations shook at? - ✔✔Determined by a verification process
✔✔How do you verify the gradation time? - ✔✔You shake said sample at a certain time
until the hand sieveing is <0.5% of the total sample weight for each individual sieve after
one minute.
✔✔What is the hand sieveing process? - ✔✔Individually take a sieve at a time and with
a cover plate and catch pan hold at an angle and hit with the heel of hand in an upward
motion.
Rotate the sieve 1/6 of a revolution every 25 strikes.
There should be 150 strikes total/minute.
✔✔The final gradation weight must be within what of the total weight of aggregate -
✔✔0.2%
✔✔% Passing Formula - ✔✔100 - ( Weight Retained ÷ Extracted Agg) × 100
✔✔% Passing 200 Sieve Formula - ✔✔(Weight Lost from Wash + Weight Retained) ÷
Extracted Aggregate Weight × 100
QUESTIONS AND ANSWERS SURE A+
✔✔Determining 200 Sieve Correction Factor - ✔✔P-200[Solvent] - P-200[Ignition]
✔✔Calibrated AC Formula - ✔✔AC Measured + Correction Factor
✔✔When washing a gradation sample what do you add first water or a wetting agent? -
✔✔Cover the sample with water first
✔✔What temperature do you dry a gradation sample at? - ✔✔230°F-9°F to Compaction
Temp +9°F
✔✔How long are gradations shook at? - ✔✔Determined by a verification process
✔✔How do you verify the gradation time? - ✔✔You shake said sample at a certain time
until the hand sieveing is <0.5% of the total sample weight for each individual sieve after
one minute.
✔✔What is the hand sieveing process? - ✔✔Individually take a sieve at a time and with
a cover plate and catch pan hold at an angle and hit with the heel of hand in an upward
motion.
Rotate the sieve 1/6 of a revolution every 25 strikes.
There should be 150 strikes total/minute.
✔✔The final gradation weight must be within what of the total weight of aggregate -
✔✔0.2%
✔✔% Passing Formula - ✔✔100 - ( Weight Retained ÷ Extracted Agg) × 100
✔✔% Passing 200 Sieve Formula - ✔✔(Weight Lost from Wash + Weight Retained) ÷
Extracted Aggregate Weight × 100
