ASTM C125-02
(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
Relations
Standards Content (Sample)
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Designation: C 125 – 02
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.
increase in mass is expressed as a percentage of the dry mass of the
1. Scope
body and the body is considered to be “dry” when it has been treated
1.1 The following definitions apply to hydraulic cement
by an appropriate process to remove uncombined water, such as drying
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concrete, although some of them may have wider application.
to constant mass at a temperature between 100 and 110°C.
2. Referenced Documents
admixture, n—a material other than water, aggregates, hy-
draulic cementitious material, and fiber reinforcement that is
2.1 ASTM Standards:
used as an ingredient of a cementitious mixture to modify its
C 109/C 109M Test Method for Compressive Strength of
freshly mixed, setting, or hardened properties and that is
Hydraulic Cement Mortars (Using 2–in. or [50–mm] Cube
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added to the batch before or during its mixing.
Specimens)
accelerating admixture, n—admixture that accelerates the
C 143/C 143M Test Method for Slump of Hydraulic Ce-
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setting and early strength development of concrete. (C 494/
ment Concrete
C 494M)
C 403/C 403M Test Method for Time of Setting of Concrete
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air-entraining admixture, n—admixture that causes the de-
Mixtures by Penetration Resistance
velopment of a system of microscopic air bubbles in
C 494/C 494M Specification for Chemical Admixtures for
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concrete or mortar during mixing.
Concrete
chemical admixture, n—a nonpozzolanic admixture in the
C 939 Test Method for Flow of Grout for Preplaced-
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form of a liquid, suspension, or water-soluble solid.
Aggregate Concrete (Flow Cone Method)
mineral admixture, n—deprecated term.
C 1074 Practice for Estimating Concrete Strength by the
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Maturity Method
DISCUSSION—This term has been used to refer to different types of
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2.2 American Concrete Institute Publications:
water insoluble, finely divided materials such as pozzolanic materials,
cementitious materials, and aggregate. These materials are not similar,
308 Practice for Curing Concrete
and it is not useful to group them under a single term. The name of the
3. Terminology specific material should be used, for example, use “pozzolan,” “ground
granulated blast-furnace slag,” or “finely divided aggregate,” as is
absorption, n—the process by which a liquid is drawn into and
appropriate.
tends to fill permeable pores in a porous solid body; also, the
retarding admixture, n—admixture that retards the setting of
increase in mass of a porous solid body resulting from the
concrete. (C 494/C 494M)
penetration of a liquid into its permeable pores.
water-reducing admixture, n—admixture that either in-
DISCUSSION—In the case of concrete and concrete aggregates, unless
creases the slump of freshly mixed mortar or concrete
otherwise stated, the liquid involved is water, the increase in mass is
without increasing the water content or that maintains the
that which does not include water adhering to the outside surface, the
slump with a reduced amount of water due to factors other
than air entrainment.
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water-reducing admixture, high-range, n—a water-reducing
This terminology is under the jurisdiction of ASTM Committee C09 on
Concrete and Concrete Aggregates and is the direct responsibility of Subcommittee
admixture capable of producing at least 12 % reduction of
C09.91 on Terminology.
water content when tested in accordance with Specification
Current edition approved Aug. 10, 2002. Published October 2002. Originally
e1 C 494/C 494M and meeting the other relevant requirements
published as C 125 – 36 T. Last previous edition C 125 – 00a .
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of Specification C 494/C 494M.
C 219, Terminology Relating to Hydraulic Cement contains definitions of a
number of items in use in standards under the jurisdiction of Committee C09.
aggregate, n—granular material, such as sand, gravel, crushed
Definitions of additional terms may be found in Cement and Concrete Terminology,
stone, or iron blast-furnace slag, used with a cementing
116R American Concrete Institute, P.O. Box 19150, Detroit, MI 48219.
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medium to form hydraulic-cement concrete or mortar.
Annual Book of ASTM Standards, Vol 04.01.
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Annual Book of ASTM Standards, Vol 04.02. coarse aggregate, n—(1) aggregate predominantly retained
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Available from the American Concrete Institute, P.O. Box 9094, Farmington
on the 4.75-mm (No. 4) sieve; or (2) that portion of an
Hills, MI 48333
...
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