Thank you, Ron. My lab manager pointed out the same thing, that the seating may be uneven. We did do the replacement of greater than 3/4" material, using material retained on the #4.
Since it looks like you agree not to rerun the tests, my question is, should I focus on the later data, 0.3 to...
I had two CBR tests run in a crushed rock gravel, gap-graded with about 20 percent fines. It was produced by a rock crusher on-site, and acts a lot like screenings. The CBR results are a concave shape for the entire curve up to 0.5 inch deflection. ASTM says to run the tests again, however, I...
