CA....
CA....
(OP)
Is there some type of guidelines for understanding the nomenclature of CA6 or CA7 or CA13???
Is there a standardized chart or quick reference somewhere? I always have a hard time remembering which each is (IE: material, size). Any help would be appreciated?
Is there a standardized chart or quick reference somewhere? I always have a hard time remembering which each is (IE: material, size). Any help would be appreciated?





RE: CA....
There are also standars for FA (fine aggregate).
RE: CA....
RE: CA....
(the number after the CA designation are %passing sieves)
CA 6 100 95±5 75±15 43±13 25±15 8±4
CA 7 100 95±5 45±15 5±5
CA 13 100 97±3 80±10 30±15 3±3
CA6 is slightly more coarse than No. 57 stone (As noted in ASTM C33)
CA7 is more coarse than CA6, mostly because it has fewer of the finer coarse aggregate sizes
CA13 is finer than either of the other two.
Before you get impatient because you have not received an answer to your question in the forum, you might want to Google a few terms...this can be found in less than 5 minutes of searching.
RE: CA....
Always Patient,
Jake
RE: CA....
You might want to check ASTM standards on aggregate gradation such as ASTM C33 or ASTM D1241. These are more universally accepted as compared to IDOT specifications, although I believe you are in Illinois so that might be your primary reference there.
Good luck,
Ron
RE: CA....
VDOT and Penndot.
Richard A. Cornelius, P.E.
WWW.amlinereast.com