Title:
ASTM C618-19, "Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete."
Author(s):
ASTM Subcommittee C09.24 on Supplementary Cementitious Materials
Publication:
Commentary Reference
Volume:
Issue:
Appears on pages(s):
Keywords:
DOI:
10.1520/C0618-19
Date:
1/1/2019
Abstract:
This specification covers coal fly ash and raw or calcined natural pozzolan for use in concrete where cementitious or pozzolanic action, or both, is desired, or where other properties normally attributed to fly ash or pozzolans may be desired, or where both objectives are to be achieved. Fly ash and natural pozzolans shall conform to the prescribed chemical composition requirements and physical requirements. The materials shall be tested for fineness, strength activity index, water requirement, soundness, and autoclave expansion or contraction.