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Homepage>ASTM Standards>91>91.100>91.100.30>ASTM C0618-23E01 - Standard Specification for Coal Ash and Raw or Calcined Natural Pozzolan for Use in Concrete
Released: 01.03.2023

ASTM C0618-23E01 - Standard Specification for Coal Ash and Raw or Calcined Natural Pozzolan for Use in Concrete

Standard Specification for Coal Ash and Raw or Calcined Natural Pozzolan for Use in Concrete

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Standard number:C0618-23E01
Released:01.03.2023
Status:Active
Pages:5
Section:04.02
Keywords:bottom ash; coal ash; fly ash; harvested coal ash; natural pozzolan;
DESCRIPTION

1.1 This specification covers coal 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 coal ash or natural pozzolans may be desired, or where both objectives are to be achieved.

Note 1: Finely divided materials may tend to reduce the entrained air content of concrete. Hence, if a coal ash or natural pozzolan is added to any concrete for which entrainment of air is specified, provision should be made to ensure that the specified air content is maintained by air content tests and by use of additional air-entraining admixture or use of an air-entraining admixture in combination with air-entraining hydraulic cement.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 The text of this standard references notes and footnotes, which provide explanatory information. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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