Question: Q 4 . Using your first analysis from Q 3 , set up a spreadsheet to calculate the maximum distance you could pave a 1

Q4. Using your first analysis from Q3, set up a spreadsheet to calculate the maximum distance you could pave a 12-foot-wide lane, at a total thickness of 10 inches (two lifts of three inches and one lift of four inches), per hour, for the following compactors:
CAT CB36B
CAT CB46B
CAT CB64B
You must account for the deviations from the assumed conditions outlined in the CAT Performance Handbook. The site conditions for this project are:
Only one compactor is allowed
Vibratory speed as indicated by CAT for specific equipment
Lift thickness as indicated in problem. Since lift thickness changes, you need to calculate separate production values.
Impact spacing is 15 impacts per foot
Four passes required for compaction
Unit weight of asphalt concrete is 150 pcf
The reason this is asking for maximum distance per hour is that you can only put down so much material before there is too much and the compactors cannot keep up before the asphalt concrete reaches the stop temperature. Note: Below is Q3 and the answers I got after putting all the details in Multicool website.
Q3. Using the MultiCool website, determine how much time you have to put down and compact the following project:
paving on top of existing asphalt concrete
3 lifts of PG 64-22 asphalt concrete
lifts 1 and 3 are 3 inches and the second lift is 4 inches
use defaults for everything else with that, answer the following questions:
a. How long do I have to work on the first lift?
b. Do I get a significant benefit in terms of working time if I do this project in the dead of summer in Alabama where the surface temperature can reach 120F and the air temp is 95F? Explain with some numbers.
c. Some DOTs prohibit asphalt paving below an air temperature of 40F. How much shorter of a time do I have if I say, screw you government, you cant tell me what to do, youre not my mom! and I go and pave at an air temperature of 30F and a surface temperature of 40F?
d. Picking any of the prior three scenarios, is the rate of heat loss constant for each lift? Why or why not? Solution for Q3( Answer)
Sn duration(winter) duration(summer) D(air&Surface temp 30 &40)
Lift 1437539
lift 210313697
lift 38110076
Total 227311212

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