: If you only need to reference the standard and are not under contract requiring the latest revision, the DLA ASSIST database is a legitimate free source (for US government affiliates and contractors). For commercial use, always buy the latest revision from SAE.
While the fresh properties distinguish SCC from normal concrete, MS 812021 ensures that hardened properties are not compromised. The standard mandates: ms812021 standard pdf
The official is a copyrighted document available for purchase through the official MSS Store or authorized global distributors like Accuris and Intertek. It is important to obtain the official version to ensure compliance with the most recent technical errata and amendments. MSS SP-81 - Manufacturers Standardization Society : If you only need to reference the