ASTM C1384-03

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Designation: C 1384 – 03
Standard Specification for
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Admixtures for Masonry Mortars
This standard is issued under the fixed designation C 1384; 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.
1. Scope* C 403 Test Method for Time of Setting of Concrete Mix-
4
tures by Penetration Resistance
1.1 This specification pertains to admixtures for masonry
2
C 595 Specification for Blended Hydraulic Cements
mortars. Admixtures are substances other than Specification
C 723 Practice for Chemical-Resistant Resin Grouts for
C 270 prescribed materials of water, aggregate, and cementi-
3
Brick or Tile
tious materials that are used to improve one or more of the
2
C 778 Specification for Standard Sand
recognized desirable properties of conventional masonry mor-
C 780 Test Method for Preconstruction and Construction
tar.
Evaluation of Mortars for Plain and Reinforced Unit
1.2 This specification does not cover coloring pigments.
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Masonry
NOTE 1—Information on coloring pigments can be found in Specifica-
C 979 Specification for Pigments for Integrally Colored
tion C 979.
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Concrete
1.3 This specification does not cover additives that are
C 1093 Practice for Accreditation of Testing Agencies for
3
added to the cementitious materials during the manufacture of
Unit Masonry
the cementitious materials.
C 1152 Test Method for Acid-Soluble Chloride in Mortar
4
1.4 Acceptance of an admixture is based on its performance
and Concrete
2
in an admixed mortar. Acceptance of the admixed masonry
C 1157 Performance Specification for Hydraulic Cement
mortar is based on attainment of performance either equivalent
C 1218 Test Method for Water-Soluble Chloride in Mortar
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to that required for conventional mortar or improved perfor-
and Concrete
2
mance of one or more indicated properties, while maintaining
C 1329 Specification for Mortar Cement
required performance levels for other properties.
C 1357 Test Method for Evaluating Masonry Bond
3
1.5 The values stated in SI units are to be regarded as the
Strength
standard. The values given in parentheses are for information
C 1403 Test Method for Rate of Water Absorption of
3
only.
Masonry Mortars
2
C 1437 Test Method for Flow of Hydraulic Cement Mortar
NOTE 2—Thetestinglaboratoryperformingthetestmethodsreferenced
in this specification should be evaluated in accordance with Practice
3. Terminology
C 1093.
3.1 Definitions of Terms Specific to This Standard:
2. Referenced Documents
3.1.1 admixed mortar, n—masonry mortar that deviates
2.1 ASTM Standards: from those combinations of materials recognized by Specifi-
2
C 91 Specification for Masonry Cement cation C 270 in that it also contains an admixture.
3
C 144 Specification for Aggregate for Masonry Mortar 3.1.2 admixture, n—substance other than the Specification
2
C 150 Specification for Portland Cement C 270 prescribed materials of water, aggregate, and cementi-
C 207 Specification for Hydrated Lime for Masonry Pur- tious materials that is added to a masonry mortar to modify one
2
poses or more properties of the conventional masonry mortar.
3
C 270 Specification for Mortar for Unit Masonry 3.1.3 bond enhancer, n—admixture used to increase the
C 305 PracticeforMechanicalMixingofHydraulicCement bond strength between the masonry mortar and the masonry
2
Pastes and Mortars of Plastic Consistency unit.
3.1.4 reference mortar, n—mortar of the same composition
as an admixed mortar except that the reference mortar does not
1 include the admixture and may contain a different amount of
This specification is under the jurisdiction of ASTM Committee C12 on
Mortars and Grouts for Unit Masonry and is the direct responsibility of Subcom- water to obtain an equivalent flow or penetration as the
mittee C12.09 on Modified Mortars.
admixed mortar.
Current edition approved January 10, 2003. Published May 2003. Originally
approved in 1998. Last previous approved in 2002 as edition C 1384 – 02a.
2
Annual Book of ASTM Standards, Vol 04.01.
3 4
Annual Book of ASTM Standards, Vol 04.05. Annual Book of ASTM Standards,Vol 04.02.
*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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C1384–03
3.1.5 set accelerator, n—admixture used to shorten the time 6. Chemical Composition
of setting of a masonry mortar.
6.1 The admixture shall not react adversely with embedded
3.1.6 set retarder, n—admixture used to lengthen the time
or attached materials common to masonry.
of setting of a masonry mortar.
NOTE 3—Current
...