Assume: Required strength 4,000 psi, 1" Aggregate, 3" Slump, Non-air-entrained.
Standard Practice for Selecting Proportions for Normal, Heavyweight, and Mass Concrete (ACI 211.1-22). Farmington Hills, MI: ACI. aci 211.1-22
Once all other ingredients are known, the fine aggregate weight is determined by the "Mass Method" or "Volume Method." Assume: Required strength 4,000 psi, 1" Aggregate, 3"
If using SCMs (Fly Ash, Slag), this total mass is divided based on the specified replacement percentage (e.g., 25% Fly Ash). Assume: Required strength 4