Aggregates for Concrete Memphis
aggregate have openings ranging from 150 µm to mm (No. 100 sieve to . 3 ⁄ 8. in.). The 13 standard sieves for coarse aggregate have openings ranging from mm to 100 mm ( in. to 4 in.). Tolerances for the dimensions of openings in sieves are listed in ASTM E 11 (AASHTO M 92). Size numbers (grading sizes) for coarse aggregates