Calculating yield during a bituminous paving operation
Calculating yield during a bituminous paving operation
(OP)
I'm starting a new mill and overlay project, and I've never calculated the yield of hot mix per truckload, if anybody has experience with this, please let me know how its done. I think it has to do with Lbs. per sq. yd. per inch times length of paving per truckload, meaning a truckload of hot mix has to be able to go so far?





RE: Calculating yield during a bituminous paving operation
RE: Calculating yield during a bituminous paving operation
RE: Calculating yield during a bituminous paving operation
For example, if you have 20 tons of asphalt, then you have 40,000 lbs of asphalt, with say, a laboratory unit weight of 135 lbs/cubic foot. That will yield 296 cubic feet of asphalt. For each 1-inch of thickness that's 3556 square feet or 395 square yards of asphalt, 1-inch thick.
For actual yield, use the average field density of the asphalt. If the yield runs high, that means their compaction might be low!
RE: Calculating yield during a bituminous paving operation
RE: Calculating yield during a bituminous paving operation
RE: Calculating yield during a bituminous paving operation
Paced lengths are usually good enough for placement monitoring. If you have stationing, so much the better. If yield is off, carefully monitor mat thickness, as controlled by screed height, and suggest to operator(s) they correct as necessary.
Yield for pay (sq. yd.) should be accurately measured with wheels and or tape and completed courses should be randomly cored to verify thickness and density.
Cheers
RE: Calculating yield during a bituminous paving operation
http://www.hotmix.org/Paving_Area_Calc.xls
RE: Calculating yield during a bituminous paving operation