Standard Specification for Chemical Admixtures for Use in Producing Flowing Concrete

ABSTRACT
This specification covers chemical admixtures to be added to hydraulic cement concrete mixtures for use in producing flowing concrete. The two types of chemical admixtures are: Type I—plasticizing; and Type II—plasticizing and retarding. Tests of the chemical admixtures with reference concreting materials or with concrete-making materials proposed for specific work are specified. Three levels of testing are discussed: Level 1, Level 2, and Level 3. Type of admixtures shall conform to the physical requirements: time of setting, increase in slump, compressive strength, flexural strength, length of change after days of drying, and relative durability factor. Uniformity and equivalence shall be established by the following requirements: infrared analysis, residue by oven drying (liquid and nonliquid admixtures), and specific gravity (liquid admixtures). Tests for quality, uniformity, and equivalence shall be made. Samples of freshly mixed concrete shall be tested according to slump, air content, time of setting, and water content and unit weight. Hardened concrete shall be tested according to the following: compressive strength, flexural strength, resistance to freezing and thawing, and length change.
SCOPE
1.1 This specification covers two types of chemical admixtures to be added to hydraulic cement concrete mixtures for the purpose of producing flowing concrete. The types are as follows:
1.1.1 Type I - Plasticizing, and
1.1.2 Type II - Plasticizing and retarding.
1.2 This specification stipulates tests of a chemical admixture with reference concreting materials or with concrete-making materials proposed for specific work. Unless otherwise specified by the purchaser, the tests shall be made using reference concreting materials.
1.3 If a chemical admixture has been tested and found to comply with the provisions of this specification using reference materials, and is being considered for use with other materials for specific work, additional tests for such use are allowed if agreed upon between the purchaser and the supplier and are allowed to consist of a portion of the tests described herein.
1.4 This specification provides for three levels of testing.
1.4.1 Level 1 - During the initial approval stage, proof of compliance with the performance requirements defined in demonstrates that the admixture meets the requirements of this specification. Uniformity and equivalence tests of the section on Lot Uniformity and Equivalence shall be carried out to provide results against which later comparisons can be made.
1.4.2 Level 2 - Limited retesting described in the section relating to general requirements may be requested at intervals by the purchaser. Proof of compliance with the requirements of demonstrates continued conformity of the admixture with the requirements of the specification.
1.4.3 Level 3 - For acceptance of a lot or for measuring uniformity within or between lots, when specified by the purchaser, the uniformity and equivalence tests of the section on Lot Uniformity and Equivalence shall be used.
1.5 The values stated in SI units are to be regarded as standard. The values in inch-pound units shown in parentheses are provided for information purposes only.
Note 1 - It is recommended that, whenever practicable, tests be made using the concrete-making materials (cement, pozzolan, slag, aggregates, air-entraining admixture), the mixture proportions, and the batching sequence and other physical conditions proposed for the specific work. The specific effects produced by chemical admixtures may vary with the properties and proportions of the other ingredients of the concrete.
Note 2 - Temperature has a pronounced effect on time of setting of concrete. This may be exaggerated by the use of admixture Types I and II. If concrete temperatures to be expected on a particular job differ significantly from the conditions set forth in this specification, further testing may be desirable.
Note 3 - An unu...

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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:C1017/C1017M −07
StandardSpecification for
Chemical Admixtures for Use in Producing Flowing
1
Concrete
This standard is issued under the fixed designation C1017/C1017M; 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 (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* purchaser, the uniformity and equivalence tests of the section
on Lot Uniformity and Equivalence shall be used.
1.1 This specification covers two types of chemical admix-
turestobeaddedtohydrauliccementconcretemixturesforthe
1.5 The values stated in SI units are to be regarded as
purpose of producing flowing concrete. The types are as
standard.The values in inch-pound units shown in parentheses
follows:
are provided for information purposes only.
1.1.1 Type I—Plasticizing, and
NOTE 1—It is recommended that, whenever practicable, tests be made
1.1.2 Type II—Plasticizing and retarding.
using the concrete-making materials (cement, pozzolan, slag, aggregates,
1.2 This specification stipulates tests of a chemical admix-
air-entraining admixture), the mixture proportions, and the batching
ture with reference concreting materials or with concrete-
sequence and other physical conditions proposed for the specific work.
makingmaterialsproposedforspecificwork.Unlessotherwise
The specific effects produced by chemical admixtures may vary with the
properties and proportions of the other ingredients of the concrete.
specified by the purchaser, the tests shall be made using
reference concreting materials. NOTE 2—Temperature has a pronounced effect on time of setting of
concrete.ThismaybeexaggeratedbytheuseofadmixtureTypesIandII.
1.3 If a chemical admixture has been tested and found to
If concrete temperatures to be expected on a particular job differ
complywiththeprovisionsofthisspecificationusingreference
significantly from the conditions set forth in this specification, further
materials, and is being considered for use with other materials testing may be desirable.
for specific work, additional tests for such use are allowed if
NOTE 3—An unusually rapid loss of workability with time, sometimes
termed “slump loss”, can be experienced with these admixtures. The rate
agreed upon between the purchaser and the supplier and are
of slump loss will vary with the particular concreting materials and
allowed to consist of a portion of the tests described herein.
proportions, mixing equipment and procedures, and temperatures experi-
1.4 This specification provides for three levels of testing.
enced on any particular job. At elevated temperatures, the slump may be
1.4.1 Level 1—During the initial approval stage, proof of retained for a longer period if a Type II admixture is used.
compliance with the performance requirements defined in
NOTE 4—Admixtures that contain relatively large amounts of chloride
may accelerate corrosion of prestressing steel. Compliance with the
Table 1 demonstrates that the admixture meets the require-
requirements of this specification does not constitute assurance of accept-
mentsofthisspecification.Uniformityandequivalencetestsof
ability of the admixture for use in prestressed concrete (see ACI 318).
thesectiononLotUniformityandEquivalenceshallbecarried
NOTE 5—Admixtures that contain relatively large amounts of alkali
out to provide results against which later comparisons can be
(Na O+0.658 K O) may contribute to reaction with some aggregates.
2 2
made.
Compliance with the requirements of this specification does not assure
1.4.2 Level 2—Limited retesting described in the section
acceptability when used with alkali-reactive aggregates and some ce-
relating to general requirements may be requested at intervals
ments.
bythepurchaser.Proofofcompliancewiththerequirementsof
1.6 The text of this standard references notes and footnotes
Table 1 demonstrates continued conformity of the admixture
whichprovideexplanatorymaterial.Thesenotesandfootnotes
with the requirements of the specification.
(excluding those in tables and figures) shall not be considered
1.4.3 Level 3—For acceptance of a lot or for measuring
as requirements of the standard.
uniformity within or between lots, when specified by the
1.7 The following precautionary caveat pertains only to the
test method sections of this specification:This standard does
1 not purport to address all of the safety concerns, if any,
This specification is under the jurisdiction of ASTM Committee C09 on
Concrete and ConcreteAggregatesand is the direct responsibility of Subcommittee
associated with its use. It is the responsibility of the user of this
C09.23 on Chemi
...

This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:C 1017/C 1017M–03 Designation: C1017/C1017M – 07
Standard Specification for
Chemical Admixtures for Use in Producing Flowing
1
Concrete
This standard is issued under the fixed designation C1017/C1017M; 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 (´) 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*
1.1 This specification covers two types of chemical admixtures to be added to hydraulic cement concrete mixtures for the
purpose of producing flowing concrete. The types are as follows:
1.1.1 Type I—Plasticizing, and
1.1.2 Type II—Plasticizing and retarding.
1.2 This specification stipulates tests of a chemical admixture with reference concreting materials or with concrete-making
materials proposed for specific work. Unless otherwise specified by the purchaser, the tests shall be made using reference
concreting materials.
1.3 If a chemical admixture has been tested and found to comply with the provisions of this specification using reference
materials,andisbeingconsideredforusewithothermaterialsforspecificwork,additionaltestsforsuchuseareallowedifagreed
upon between the purchaser and the supplier and are allowed to consist of a portion of the tests described herein.
1.4 This specification provides for three levels of testing.
1.4.1 Level 1—During the initial approval stage, proof of compliance with the performance requirements defined in Table 1
demonstrates that the admixture meets the requirements of this specification. Uniformity and equivalence tests of the section on
Lot Uniformity and Equivalence shall be carried out to provide results against which later comparisons can be made.
1.4.2 Level 2—Limited retesting described in the section relating to general requirements may be requested at intervals by the
purchaser. Proof of compliance with the requirements of Table 1 demonstrates continued conformity of the admixture with the
requirements of the specification.
1.4.3 Level 3—Foracceptanceofalotorformeasuringuniformitywithinorbetweenlots,whenspecifiedbythepurchaser,the
uniformity and equivalence tests of the section on Lot Uniformity and Equivalence shall be used.
1.5 The values stated in SI units are to be regarded as standard. The values in inch-pound units shown in parentheses are
provided for information purposes only.
NOTE 1—It is recommended that, whenever practicable, tests be made using the concrete-making materials (cement, pozzolan, slag, aggregates,
air-entraining admixture), the mixture proportions, and the batching sequence and other physical conditions proposed for the specific work. The specific
effects produced by chemical admixtures may vary with the properties and proportions of the other ingredients of the concrete.
NOTE 2—Temperature has a pronounced effect on time of setting of concrete. This may be exaggerated by the use of admixture Types I and II. If
concrete temperatures to be expected on a particular job differ significantly from the conditions set forth in this specification, further testing may be
desirable.
NOTE 3—An unusually rapid loss of workability with time, sometimes termed “slump loss”, can be experienced with these admixtures. The rate of
slump loss will vary with the particular concreting materials and proportions, mixing equipment and procedures, and temperatures experienced on any
particular job. At elevated temperatures, the slump may be retained for a longer period if a Type II admixture is used.
NOTE 4—Admixturesthatcontainrelativelylargeamountsofchloridemayacceleratecorrosionofprestressingsteel.Compliancewiththerequirements
of this specification does not constitute assurance of acceptability of the admixture for use in prestressed concrete (see ACI 318).
NOTE 5—Admixtures that contain relatively large amounts of alkali
(Na O+0.658 K O) may contribute to reaction with some aggregates. Compliance with the requirements of this specification does not assure
2 2
acceptability when used with alkali-reactive aggregates and some cements.
1.6 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes
(excluding those in tables and figures) shall not be considered as requirements of the standard.
1.7 The following precautionary caveat pertains only to the test method sections of this specification: This
...

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