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ASTM C618-25a Standard specification for coal ash and raw or calcined natural pozzolan for use in concrete

Publication Year

2025

Document Status

Current

Abstract

Specifies coal fly ash and raw or calcined natural pozzolan for use in concrete where cementitious or pozzolanic action, or both, is desired.

Document History

Supersedes ASTM C618-25.

Publisher Information

American Society for Testing and Materials

ASTM International offers global access to standards development for over 140 participating countries.