ASTM C125-03
(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:C125–03
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.
that which does not include water adhering to the outside surface, the
1. Scope
increase in mass is expressed as a percentage of the dry mass of the
1.1 The following definitions apply to hydraulic cement
body and the body is considered to be “dry” when it has been treated
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concrete, although some of them may have wider application.
by an appropriate process to remove uncombined water, such as drying
to constant mass at a temperature between 100 and 110°C.
2. Referenced Documents
admixture, n—a material other than water, aggregates, hy-
2.1 ASTM Standards:
draulic cementitious material, and fiber reinforcement that is
C 109/C 109M Test Method for Compressive Strength of
used as an ingredient of a cementitious mixture to modify its
Hydraulic Cement Mortars (Using 2-in. or [50-mm] Cube
freshly mixed, setting, or hardened properties and that is
3
Specimens)
added to the batch before or during its mixing.
C 143/C 143M Test Method for Slump of Hydraulic Ce-
accelerating admixture, n—admixture that accelerates the
4
ment Concrete
setting and early strength development of concrete. (C 494/
C 403/C 403M TestMethodforTimeofSettingofConcrete
4 C 494M)
Mixtures by Penetration Resistance
air-entraining admixture, n—admixture that causes the de-
C 494/C 494M Specification for Chemical Admixtures for
4 velopment of a system of microscopic air bubbles in
Concrete
concrete or mortar during mixing.
C 939 Test Method for Flow of Grout for Preplaced-
4 chemical admixture, n—a nonpozzolanic admixture in the
Aggregate Concrete (Flow Cone Method)
form of a liquid, suspension, or water-soluble solid.
C 1074 Practice for Estimating Concrete Strength by the
4 mineral admixture, n—deprecated term.
Maturity Method
5
2.2 American Concrete Institute Publications:
DISCUSSION—This term has been used to refer to different types of
water insoluble, finely divided materials such as pozzolanic materials,
308 Practice for Curing Concrete
cementitious materials, and aggregate. These materials are not similar,
3. Terms and Their Definitions 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
absorption, n—theprocessbywhichaliquidisdrawnintoand
granulated blast-furnace slag,” or “finely divided aggregate,” as is
tends to fill permeable pores in a porous solid body; also, the
appropriate.
increase in mass of a porous solid body resulting from the
retarding admixture, n—admixture that retards the setting of
penetration of a liquid into its permeable pores.
concrete. (C 494/C 494M)
DISCUSSION—In the case of concrete and concrete aggregates, unless
water-reducing admixture, n—admixture that either in-
otherwise stated, the liquid involved is water, the increase in mass is
creases the slump of freshly mixed mortar or concrete
without increasing the water content or that maintains the
slump with a reduced amount of water due to factors other
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This terminology is under the jurisdiction of ASTM Committee C09 on
than air entrainment.
Concrete and ConcreteAggregates and is the direct responsibility of Subcommittee
C09.91 on Terminology. water-reducing admixture, high-range, n—a water-reducing
Current edition approved June 10, 2003. Published July 2003. Originally
admixture capable of producing at least 12 % reduction of
approved in 1936. Last previous edition approved in 2002 as C 125 – 02.
water content when tested in accordance with Specification
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C 219, Terminology Relating to Hydraulic Cement contains definitions of a
C 494/C 494M and meeting the other relevant requirements
number of items in use in standards under the jurisdiction of Committee C09.
Definitions of additional terms may be found in Cement and Concrete Terminology,
of Specification C 494/C 494M.
116R American Concrete Institute, P.O. Box 19150, Detroit, MI 48219.
aggregate, n—granular material, such as sand, gravel, crushed
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Annual Book of ASTM Standards, Vol 04.01.
stone, or iron blast-furnace slag, used with a cementing
4
Annual Book of ASTM Standards, Vol 04.02.
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medium to form hydraulic-cement concrete or mortar.
Available from the American Concrete Institute, P.O. Box 9094, Farmington
Hills, MI 48333-9094.
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