Are there any pavement experts there? Hello...? Hello...?
Anyone able to discuss pavement aggregate size and gradation, an abstract and conceptual or pragmatic perspective...Anything?
"Coarse", "medium", or "open", means gradation. I am specifically asking about aggregate variations--not...
Thanks for the reply Ron.
There are two questions (about HMA characteristics):
1) Differences between max size 1/2" vs 3/4"
2) Differences between "coarse" and "medium" gradation.
What are the characteristics which make one worth specifying over the other, relative to the pavements in service...
GRADATION: I don't understand the differences between the "coarse" and "medium" gradations used by Caltrans (neither of which is "open").
SIZE: When would you use a 3/4" as opposed to a 1/2", what are the benefits and drawbacks? When would you specify a 1/2" course as opposed to a 1/2"...