ASTM C856-14
Standard Practice for Petrographic Examination of Hardened Concrete

Standard No.
ASTM C856-14
Release Date
2014
Published By
American Society for Testing and Materials (ASTM)
Status
Replace By
ASTM C856-17
Latest
ASTM C856/C856M-20
Scope

1.1 This practice outlines procedures for the petrographic examination of samples of hardened concrete. The samples examined may be taken from concrete constructions, they may be concrete products or portions thereof, or they may be concrete or mortar specimens that have been exposed in natural environments, or to simulated service conditions, or subjected to laboratory tests. The phrase “concrete constructions” is intended to include all sorts of objects, units, or structures that have been built of hydraulic cement concrete.

Note 1: A photographic chart of materials, phenomena, and reaction products discussed in Sections 8 – 13 and Tables 1-6 are available as Adjunct C856 (ADJCO856).

TABLE 1 Visual Examination of Concrete (1)5

Coarse Aggregate

+ Fine Aggregate

+ Matrix

+ Air

+ Embedded Items

Composition:

 

ASTM C856-14 history

  • 2020 ASTM C856/C856M-20 Standard Practice for Petrographic Examination of Hardened Concrete
  • 2018 ASTM C856-18a Standard Practice for Petrographic Examination of Hardened Concrete
  • 2018 ASTM C856-18 Standard Practice for Petrographic Examination of Hardened Concrete
  • 2017 ASTM C856-17 Standard Practice for Petrographic Examination of Hardened Concrete
  • 2014 ASTM C856-14 Standard Practice for Petrographic Examination of Hardened Concrete
  • 2013 ASTM C856-13 Standard Practice for Petrographic Examination of Hardened Concrete
  • 2011 ASTM C856-11 Standard Practice for Petrographic Examination of Hardened Concrete
  • 2004 ASTM C856-04 Standard Practice for Petrographic Examination of Hardened Concrete
  • 2002 ASTM C856-02 Standard Practice for Petrographic Examination of Hardened Concrete
  • 1995 ASTM C856-95e1 Standard Practice for Petrographic Examination of Hardened Concrete



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