ASTM C33/C33M-13 pdf free.Standard Specification for Concrete Aggregates. ASTM C33/C33M defines the requirements for grading and quality of fine and coarse aggregate (other than lightweight or heavyweight aggregate) for use in concrete. 8. Soundness 8.1 Except as provided in 8.2 and 8.3, tine aggregate subjected to five cycles of the soundness test shall have a weighted average loss not greater...