ASTM C125-06
(Terminology)Standard Terminology Relating to Concrete and Concrete Aggregates
Standard Terminology Relating to Concrete and Concrete Aggregates
SCOPE
1.1 The following definitions apply to hydraulic cement concrete, although some of them may have wider application.
General Information
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Standards Content (Sample)
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Designation:C125–06
Standard Terminology Relating to
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Concrete and Concrete Aggregates
This standard is issued under the fixed designation C 125; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* increase in mass of a porous solid body resulting from the
penetration of a liquid into its permeable pores.
1.1 The following definitions apply to hydraulic cement
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concrete, although some of them may have wider application.
DISCUSSION—In the case of concrete and concrete aggregates, unless
otherwise stated, the liquid involved is water, the increase in mass is
2. Referenced Documents
that which does not include water adhering to the outside surface, the
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increase in mass is expressed as a percentage of the dry mass of the
2.1 ASTM Standards:
body and the body is considered to be “dry” when it has been treated
C 109/C 109M Test Method for Compressive Strength of
by an appropriate process to remove uncombined water, such as drying
Hydraulic Cement Mortars(Using 2-in. or [50-mm] Cube
to constant mass at a temperature between 100 and 110 °C.
Specimens)
admixture, n—a material other than water, aggregates, hy-
C 143/C 143M Test Method for Slump of Hydraulic-
draulic cementitious material, and fiber reinforcement that is
Cement Concrete
used as an ingredient of a cementitious mixture to modify its
C 219 Terminology Relating to Hydraulic Cement
freshly mixed, setting, or hardened properties and that is
C 403/C 403M TestMethodforTimeofSettingofConcrete
added to the batch before or during its mixing.
Mixtures by Penetration Resistance
accelerating admixture, n—admixture that accelerates the
C 494/C 494M Specification for Chemical Admixtures for
setting and early strength development of concrete. (C 494/
Concrete
C 494M)
C 939 Test Method for Flow of Grout for Preplaced-
air-entraining admixture, n—admixture that causes the de-
Aggregate Concrete (Flow Cone Method)
velopment of a system of microscopic air bubbles in
C 1074 Practice for Estimating Concrete Strength by the
Maturity Method concrete or mortar during mixing.
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chemical admixture, n—a nonpozzolanic admixture in the
2.2 American Concrete Institute Publications:
form of a liquid, suspension, or water-soluble solid.
308 Practice for Curing Concrete
mineral admixture, n—deprecated term.
3. Terms and Their Definitions
DISCUSSION—This term has been used to refer to different types of
absorption, n—theprocessbywhichaliquidisdrawnintoand water insoluble, finely divided materials such as pozzolanic materials,
cementitious materials, and aggregate. These materials are not similar,
tends to fill permeable pores in a porous solid body; also, the
and it is not useful to group them under a single term. The name of the
specific material should be used, for example, use “pozzolan,” “ground
1 granulated blast-furnace slag,” or “finely divided aggregate,” as is
This terminology is under the jurisdiction of ASTM Committee C09 on
appropriate.
Concrete and ConcreteAggregates and is the direct responsibility of Subcommittee
C09.91 on Terminology.
retarding admixture, n—admixture that retards the setting of
Current edition approved Feb. 15, 2006. Published March 2006. Originally
approved in 1936. Last previous edition approved in 2003 as C 125 – 03. concrete. (C 494/C 494M)
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Terminology C 219 contains definitions of a number of items in use in
water-reducing admixture, n—admixture that either in-
standards under the jurisdiction of Committee C09. Definitions of additional terms
creases the slump of freshly mixed mortar or concrete
may be found in Cement and Concrete Terminology, 116R American Concrete
without increasing the water content or that maintains the
Institute, P.O. Box 19150, Detroit, MI 48219.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
slump with a reduced amount of water due to factors other
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
than air entrainment.
Standards volume information, refer to the standard’s Document Summary page on
water-reducing admixture, high-range, n—a water-reducing
the ASTM website.
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admixture capable of producing at least 12 % reduction of
Available from the American Concrete Institute, P.O. Box 9094, Farmington
Hills, MI 48333-9094.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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