FDOT Asphalt Paving Level 2 newest actual Exam

FDOT Asphalt Paving Level 2 newest actual / Exam with comolete Questions and Answers 100% Solved

How do you calculate the tolerance for the asphalt spread rate

target? - ---Answers----Ex: Target Spread Rate = 165 lb/syds

165 x 0.05 (%5) = 8 lb/syd Then you use the 8 as a + or - from 165 so the range is from 157 to 173 lbs/syd

Formula for determining the asphalt spread rate for an FC-5 mix? - ---Answers----target spread rate = thickness x gsb (from mix design) x 40.5 (round to the nearest whole number)

A prime coat being used on lime rock, sand-clay, shell, and shell stabilized based have an application rate of what? - ---Answers-

---Limerock: greater than or equal to 0.10 gal/syd

Sand-Clay, Shell, Shell Base: greater than or equal to 0.15

gal/syd

You do not test overbuild for density unless it is? - ---Answers-- --Greater than one inch

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Where do you find approved tack products? - ---Answers----On the FDOT Approved products list (APL)

During night what is the tack you usually use? - ---Answers---- PG 52-28 or an approved emulsion

What tack an you use during the day? - ---Answers----Any kind of tack

When determining the specification rate for 52-28 tack you do what? - ---Answers----Multiply the rate by 0.6

What is the tack application rate tolerance? - ---Answers----+/- 0.01 gal/syd

Step 1 for figuring the tack spread rate - ---Answers----Find the length of the tack shot Station - station = ft

Step 2 for figuring the tack spread rate - ---Answers----Find the square yards feet x width / 9 = syds

Step 3 for figuring the tack spread rate - ---Answers----Use the distributor chart to find the gallons used

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