Fellow Engineers,
Is ADT the only criteria for Road Classification (I.e Class II vs. Class III) in Illinois? Please give me your best engineering judgement because it's critical for me to have the correct assumptions for problem definition.
For example, a two lane (1 lane in each...
Actually the Sp Gravity is 2.69 which is Reasonable. I found the answer I was seeking on the Figure on page 115 of Holtz and Kovacs which corroborates a difference of 13 lb/ft3 b/t the ZAV curve and the peak proctor curve for SP sands. So this is consistent with my plot.
I have a plotted Modified Proctor (ASTM D 1557-07) curve of fine sand (SP) with a plotted zero air voids curve that is 14 pounds above the peak and wet side of the Proctor curve. The wet side of the curve is parallel to the plotted proctor curve and the curve does not cross to the right of the...
