SS-A-281B, FEDERAL SPECIFICATION: AGGREGATE, (FOR) PORTLAND-CEMENT-CONCRETE (08-JUL-1954) [S/S BY ASTM-C33]

SS-A-281B, FEDERAL SPECIFICATION: AGGREGATE, (FOR) PORTLAND-CEMENT-CONCRETE (08-JUL-1954) [S/S BY ASTM-C33]., This specification covers aggregate for use in concrete (other than light-weight concrete).