AASHTO - American Association of State Highway and Transportation Officials
Latest
M 295-2011
Scope
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 finely divided coal fly ash and raw or calcined 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 fly 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. The values stated in SI units are to be regarded as the standard.
M 295-2011 history
2011M 295-2011 Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete
2007M 295-2007 Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete
2006M 295-2006 Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete (ASTM Designation: C 618-03)
2005M 295-2005 Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete (ASTM Designation: C 618-03)
1999M 295-1999 Standardization mandate to CEN/CENELEC concerning the development of European standards relating to medical devices