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ASTM C1384-06a

(Specification)

Standard Specification for Admixtures for Masonry Mortars

Standard Specification for Admixtures for Masonry Mortars

ABSTRACT
This specification pertains to admixtures for masonry mortars. Admixtures are substances other than the prescribed materials of water, aggregate, and cementitious materials that are used to improve one or more of the recognized desirable properties of conventional masonry mortar. Admixtures are classified by their effect on the performance characteristics of conventional masonry mortars. Admixed mortars are classified by their modified properties, as compared to a reference mortar. The following classifications are recognized: bond enhancer, workability enhancer, set accelerator, set retarder, and water repellent. The materials to be used include Portland cement, hydraulic cement, blended hydraulic cement, masonry cement, mortar cement, lime, and sand. Different test methods shall be implemented in order to determine the following properties: soluble chloride content, compressive strength, water retention, air content of plastic mortar, board life, time of setting, flexural bond strength, and rate of water absorption.
SCOPE
1.1 This specification pertains to admixtures for masonry mortars. Admixtures are substances other than Specification C 270 prescribed materials of water, aggregate, and cementitious materials that are used to improve one or more of the recognized desirable properties of conventional masonry mortar.
1.2 This specification does not cover coloring pigments.
Information on coloring pigments can be found in Specification C 979.
1.3 This specification does not cover additives that are added to the cementitious materials during the manufacture of the cementitious materials.
1.4 Acceptance of an admixture is based on its performance in an admixed mortar. Acceptance of the admixed masonry mortar is based on attainment of performance either equivalent to that required for conventional mortar or improved performance of one or more indicated properties, while maintaining required performance levels for other properties.
1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. Note 1—The testing laboratory performing the test methods referenced in this specification should be evaluated in accordance with Practice C 1093.

General Information

Status
Historical
Publication Date
30-Apr-2006
ICS
91.100.10 - Cement. Gypsum. Lime. Mortar
Technical Committee
C12 - Mortars and Grouts for Unit Masonry
Drafting Committee
C12.03 - Specifications for Mortars
Current Stage
Ref Project

Relations

Replaces
ASTM C1384-06 - Standard Specification for Admixtures for Masonry Mortars
Effective Date
01-May-2006
Replaced By
ASTM C1384-12 - Standard Specification for Admixtures for Masonry Mortars
Effective Date
01-Jun-2012
Referred By
ASTM C1780-23a - Standard Practice for Installation Methods for Cement-based Adhered Masonry Veneer
Effective Date
01-May-2006
Referred By
ASTM C1180-22 - Standard Terminology of Mortar and Grout for Unit Masonry
Effective Date
01-May-2006
Referred By
ASTM C1714/C1714M-23 - Standard Specification for Preblended Dry Mortar Mix for Unit Masonry
Effective Date
01-May-2006
Referred By
ASTM C1713-23 - Standard Specification for Mortars for the Repair of Historic Masonry
Effective Date
01-May-2006
Referred By
ASTM C1403-22a - Standard Test Method for Rate of Water Absorption of Masonry Mortars
Effective Date
01-May-2006
Referred By
ASTM C1660-10(2018) - Standard Specification for Thin-bed Mortar for Autoclaved Aerated Concrete (AAC) Masonry
Effective Date
01-May-2006
Referred By
ASTM C270-19ae1 - Standard Specification for Mortar for Unit Masonry
Effective Date
01-May-2006
Referred By
ASTM C1732-19 - Standard Practice for Installation of Concrete Floor Tiles
Effective Date
01-May-2006

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ASTM C1384-06a - Standard Specification for Admixtures for Masonry MortarsASTM C1384-06a - Standard Specification for Admixtures for Masonry Mortars
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ASTM C1384-06a - Standard Specification for Admixtures for Masonry Mortars
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Please contact ASTM International (www.astm.org) for the latest information.
Designation:C1384 −06a
Standard Specification for
1
Admixtures for Masonry Mortars
This standard is issued under the fixed designation C1384; 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.
1. Scope* C207 Specification for Hydrated Lime for Masonry Pur-
poses
1.1 This specification pertains to admixtures for masonry
C270 Specification for Mortar for Unit Masonry
mortars. Admixtures are substances other than Specification
C305 Practice for Mechanical Mixing of Hydraulic Cement
C270 prescribed materials of water, aggregate, and cementi-
Pastes and Mortars of Plastic Consistency
tious materials that are used to improve one or more of the
C403/C403M Test Method for Time of Setting of Concrete
recognized desirable properties of conventional masonry mor-
Mixtures by Penetration Resistance
tar.
C595 Specification for Blended Hydraulic Cements
1.2 This specification does not cover coloring pigments.
C723 Practice for Chemical-Resistant Resin Grouts for
Brick or Tile
NOTE 1—Information on coloring pigments can be found in Specifica-
tion C979.
C778 Specification for Sand
C780 Test Method for Preconstruction and Construction
1.3 This specification does not cover additives that are
Evaluation of Mortars for Plain and Reinforced Unit
added to the cementitious materials during the manufacture of
Masonry
the cementitious materials.
C979 Specification for Pigments for Integrally Colored Con-
1.4 Acceptance of an admixture is based on its performance
crete
in an admixed mortar. Acceptance of the admixed masonry
C1093 Practice for Accreditation of Testing Agencies for
mortar is based on attainment of performance either equivalent
Masonry
to that required for conventional mortar or improved perfor-
C1152/C1152M Test Method for Acid-Soluble Chloride in
mance of one or more indicated properties, while maintaining
Mortar and Concrete
required performance levels for other properties.
C1157 Performance Specification for Hydraulic Cement
1.5 The values stated in SI units are to be regarded as the
C1218/C1218M Test Method for Water-Soluble Chloride in
standard. The values given in parentheses are for information
Mortar and Concrete
only.
C1329 Specification for Mortar Cement
NOTE 2—The testing laboratory performing the test methods referenced
C1357 Test Methods for Evaluating Masonry Bond Strength
in this specification should be evaluated in accordance with Practice
C1403 Test Method for Rate of Water Absorption of Ma-
C1093.
sonry Mortars
C1437 Test Method for Flow of Hydraulic Cement Mortar
2. Referenced Documents
2
2.1 ASTM Standards:
3. Terminology
C91 Specification for Masonry Cement
3.1 Definitions of Terms Specific to This Standard:
C144 Specification for Aggregate for Masonry Mortar
3.1.1 admixed mortar, n—masonry mortar that deviates
C150 Specification for Portland Cement
from those combinations of materials recognized by Specifi-
cation C270 in that it also contains an admixture.
1
This specification is under the jurisdiction of ASTM Committee C12 on
Mortars and Grouts for Unit Masonry and is the direct responsibility of Subcom- 3.1.2 admixture, n—substance other than the Specification
mittee C12.03 on Specifications for Mortars.
C270 prescribed materials of water, aggregate, and cementi-
Current edition approved May 1, 2006. Published May 2006. Originally
tious materials that is added to a masonry mortar to modify one
approved in 1998. Last previous approved in 2006 as edition C1384 – 06. DOI:
or more properties of the conventional masonry mortar.
10.1520/C1384-06A.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3.1.3 bond enhancer, n—admixture used to increase the
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
bond strength between the masonry mortar and the masonry
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. unit.
*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
1

---------------------- Page: 1 ----------------------
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Please contact ASTM International (www.astm.org) for the latest information.
C1384−06a
3.1.4 reference mortar, n—mortar of the same composition 5.1.5 Cement, Mortar—When the admixture is evaluated in
as an admixed mortar except that the reference mortar does not a mortar containing a mortar cement, the mortar cement shall
include the admixture and may contain a different amount of
...

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ABSTRACT
This specification covers unit masonry mortars whose material and design requirements are governed by a referenced ASTM document stated herein, but are preblended dry in a factory instead of produced from individual raw materials delivered to the job-site. Because field sampling, testing, directly comparable test results, packaging, and traceability of ingredients of preblended dry mortar mix differ from job site mixed mortars, this specification particularly addresses these issues, along with the tight control of ingredient ratios possible with preblended dry mortars.
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1.1 This specification covers masonry mortars whose materials and design requirements are governed by Specification C270 but are preblended dry in a factory instead of produced from individual raw materials delivered to the job-site.  
1.2 The field-sampling, testing, directly comparable test results, packaging, and the traceability of ingredients of preblended dry mortar mix differ from job site mixed mortars and this standard specifically addresses these issues. The tight control of ingredient ratios possible with preblended dry mortar is also covered.  
1.3 The text of this specification refers to notes and footnotes, which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered the requirements of the standard.  
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.  
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. (Warning—Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure.)  
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ASTM C780-23(Test Method)
Standard Test Methods for Preconstruction and Construction Evaluation of Mortars for Plain and Reinforced Unit Masonry

SIGNIFICANCE AND USE
5.1 During preconstruction and construction evaluations, use of these test methods establishes specific and overall performance characteristics for the mortar system.  
5.2 Preconstruction testing of mortars prebatched by weight provides information for the selection of the individual mortar system best suited for the masonry to be constructed. The recommended tests and their significance are as follows:  
5.2.1 Consistency determinations by cone penetration (Annex A1) allow gaging the water additions for all mortars included in the preconstruction test series. Even if the mortar consistency as measured at the construction site is at a different penetration value than those measured during the preconstruction tests, the cone preparation test serves to standardize water additions for mortars being considered as alternatives before construction. Additional testing of mortar water content-consistency relationships (Annex A4) will allow relating these two factors to batch-to-batch variations at the construction site.  
5.2.2 Consistency retention by cone penetration (Annex A2) using disturbed or undisturbed mortar samples provides a means of establishing the early-age setting and stiffening characteristics of the mortars. Because laboratory testing is conducted under static climatic conditions, consistency retention test results reflect the relative performance of the mortar systems under test. The same general relationships are expected to hold during testing at the construction project, except as they are influenced by jobsite weather conditions.  
5.2.3 Mortar water-content determinations (Annex A4) allow measurement of the water content of the mortar mixture. Mortars prebatched using moist masonry sand may be mathematically analyzed for mortar water content; however, this test, when used for preconstruction evaluation, establishes the effectiveness of the test method and serves as the control or base for tests performed at the construction site.  
5.2.4 Mortar ...
SCOPE
1.1 These test methods cover procedures for the sampling and testing of mortars for composition and for their plastic and hardened properties, either before or during their actual use in construction.
Note 1: Guide C1586 provides guidance on evaluating mortar and clarifies the purpose of both these test methods and Specification C270.
Note 2: The testing agency performing these test methods should be evaluated in accordance with Practice C1093.  
1.2 Preconstruction Evaluation—These test methods permit comparisons of mortars made from different materials under simulated field conditions. They are also used to establish baseline values for comparative evaluation of field mortars.  
1.3 Construction Evaluation—Use of these methods in the field provide a means for quality assurance of field-mixed mortar. They include methods for verifying the mortar mix proportions, comparing test results for field mortars to preconstruction testing, and determining batch-to-batch uniformity of the mortar.  
1.4 The test results obtained under these test methods are not required to meet the minimum compressive values in accordance with the property specifications in Specification C270.  
1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.6 The text of this standard references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.  
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ASTM C1713-23(Specification)
Standard Specification for Mortars for the Repair of Historic Masonry

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1.1 This specification covers mortar for the repair of masonry constructed with methods and materials that pre-date the origination of current standards of construction. The mortar may be used for non-structural purposes such as repointing of the masonry, or for structural purposes such as, but not restricted to, re-construction or repair of mortar joints that contribute to the structural integrity of the masonry.  
1.2 Masonry includes the following units laid in mortar: (1) cast stone, (2) clay brick and tile, (3) concrete masonry, (4) natural stone, (5) terra cotta, and (6) calcium silicate.  
1.3 This specification may be used to pre-qualify mortar for a project.  
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ASTM C476-23(Specification)
Standard Specification for Grout for Masonry

ABSTRACT
This specification covers two types of grout, fine and coarse grout, for use in the construction of masonry structures. Grout is specified by proportions or strength requirements. Materials used as ingredients in grout shall conform to the requirements specified such as: cementitious materials; blended cements; quicklime; hydrated lime; coal fly ash or raw calcine natural pozzolan; granulated blast furnace slag; air-entraining admixtures; aggregates; water; pumping aids; antifreeze compounds; and storage of materials. Fine grout shall be manufactured with fine aggregates. Coarse grout shall be manufactured with a combination of coarse and fine aggregates. Proportions of ingredients shall be determined by grout proportion requirements and by the specified compressive strength. Materials for grout shall be measured in such a way that the required proportions of the grout materials are controlled and accurately measured. Grout shall be produced using one of the following procedures: grout materials mixed with water at the job site and ready-mixed grout transported to the job site.
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4.1 This test method provides a laboratory procedure for determining the relative water absorption properties over time of mortars used for masonry construction. Because the specimens are made under laboratory conditions and do not take into account the effect of the masonry substrate or field mixing procedures, this method is not intended for field use. Data generated from this test method may be useful for determining the relative effectiveness of water repellent admixtures or the effect of other admixtures or mortar components on the water repellency of a mortar. However, use caution in interpreting the results. While the resistance of masonry to water penetration may be related to the water absorption of the mortar, it also depends on other factors, such as the workmanship, extent of bond, and the properties of the masonry units and mortar.
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Standard Terminology of Mortar and Grout for Unit Masonry

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1.1 This terminology covers terms, definitions of terms, descriptions of terms, nomenclature, and explanations of abbreviations, acronyms, and symbols specifically associated with standards under the jurisdiction of ASTM Committee C12 on Mortars and Grouts for Unit Masonry.  
1.2 The definitions and descriptions of terms in this terminology pertain to Test Methods C780, C1019, C1148, C1324, and C1403; Specifications C144, C270, C404, C476, C887, and C1384; Practice C946; and Guide C1586.  
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Note 2: Test results of grout specimens taken from a wall should not be compared to test results obtained with this test method.
SCOPE
1.1 This test method covers procedures for both field and laboratory sampling and compression testing of grout used in masonry construction. Grout for masonry is specified under Specification C476.
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ASTM C1324-20a(Test Method)
Standard Test Method for Examination and Analysis of Hardened Masonry Mortar

SIGNIFICANCE AND USE
4.1 This test method provides procedures for petrographic examination and chemical analysis of mortar for components of masonry mortar. These components may include portland cement, hydrated calcitic or dolomitic lime, masonry cement, aggregates, and air.  
4.2 The test method consists of procedures and sub-procedures, each requiring a substantial degree of petrographic and chemical skills and relatively elaborate instrumentation.  
4.3 The chemical data considered together with results of petrographic examination of a mortar provide for calculation of component proportions and thus allow a determination of mortar composition as represented by Types M, N, S, and O in Table 1 (Proportion Specification Requirements) of Specification C270.  
4.4 Failure of a mortar to have the composition of any type as defined in Table 1 of Specification C270 does not necessarily mean that the mortar does not meet the requirements of Specification C270. The mortar may meet the alternative requirements of Table 2 (Property Specification Requirements) of Specification C270.  
4.5 The maleic acid method of analysis is not applicable for the analysis of mortar because it is greatly influenced by carbonation and does not provide for the determination of calcium.
SCOPE
1.1 This test method covers procedures for petrographic examination and chemical analysis of samples of masonry mortars. Based upon such examination and analysis, proportions of components in masonry mortars can be determined.
Note 1: This method is also applicable to hydraulic cement-based stucco and plaster. Some historic mortars may contain non-resolvable constituents that may interfere. However, significant information may be obtained by petrographic examinations.  
1.2 Interpretations and calculations of chemical results are dependent upon results of the petrographic examination. The use of the chemical results alone is contrary to the requirements of this test method.  
1.3 Procedures for sampling, petrographic examination, chemical analysis, and calculations of component proportions are given in the following sections:    
Section  
Sampling  
7  
Petrographic examination  
8  
Chemical analysis  
9  
Mortar proportion calculations  
10  
Report  
11  
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.5 The text of this standard references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.  
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
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ASTM C1586-20(Guide)
Standard Guide for Quality Assurance of Mortars

SIGNIFICANCE AND USE
3.1 This document is intended to provide guidance and clarification to designers, specifiers, inspectors, testing agencies, producers, and users in specifying and evaluating masonry mortar.  
3.2 Users of documents Specification C270 and Test Method C780 often confuse and sometimes inadvertently misuse parts of the two documents when specifying or evaluating masonry mortar. This guide seeks to address specific items within Specification C270 and Test Method C780 to help promote their proper use and interpretation.
SCOPE
1.1 This document provides guidance regarding the proper use of Specification C270 and Test Method C780 for evaluating masonry mortar produced in the laboratory and at the construction site.  
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ASTM C887-20(Specification)
Standard Specification for Packaged, Dry, Combined Materials for Surface Bonding Mortar

ABSTRACT
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SCOPE
1.1 This specification covers the materials, properties, and packaging of dry, combined materials for use as surface bonding mortar with concrete masonry units that have not been prefaced, coated, or painted.  
1.2 This specification does not cover design or application. Consult the manufacturer for specific recommendations.  
1.3 Appendix X1 of this specification contains the recommended tests for evaluation of surface bonded masonry assemblages used to establish design loads for the composite wall.  
1.4 Appendix X2 through Appendix X5 of this specification contain additional tests that may be performed on surface bonding mortar.  
1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. This hazard statement applies only to Section 9 of this specification.  
1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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