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ASTM C144-11

(Specification)

Standard Specification for Aggregate for Masonry Mortar

Standard Specification for Aggregate for Masonry Mortar

ABSTRACT
This specification covers aggregate for use in masonry mortar. Aggregate for use in masonry mortar shall consist of natural sand or manufactured sand. Manufactured sand is the product obtained by crushing stone, gravel, or air-cooled iron blast-furnace slag specially processed to ensure suitable gradation. Aggregate for use in masonry mortar shall be graded within the limits prescribed. The amount of deleterious substances in aggregate for masonry mortar, each determined on independent samples complying with the grading requirements. Except as herein provided, aggregate subjected to five cycles of the soundness test shall show a loss, weighted in accordance with the grading of a sample complying with the limitations set forth. A density test shall be performed. The air content of mortars shall be calculated.
SCOPE
1.1 This specification covers aggregate for use in masonry mortar.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 The following precautionary caveat pertains only to the test methods portion, Section 7, of this standard. This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

Status
Historical
Publication Date
30-Jun-2011
ICS
91.100.10 - Cement. Gypsum. Lime. Mortar
Technical Committee
C12 - Mortars and Grouts for Unit Masonry
Drafting Committee
C12.04 - Specifications for Aggregates for Mortars
Current Stage
Ref Project

Relations

Replaces
ASTM C144-04 - Standard Specification for Aggregate for Masonry Mortar
Effective Date
01-Jul-2011
Replaced By
ASTM C144-17 - Standard Specification for Aggregate for Masonry Mortar
Effective Date
15-Dec-2017
Referred By
ASTM C1693-11(2017) - Standard Specification for Autoclaved Aerated Concrete (AAC)
Effective Date
01-Jul-2011
Referred By
ASTM C1713-23 - Standard Specification for Mortars for the Repair of Historic Masonry
Effective Date
01-Jul-2011
Referred By
ASTM C387/C387M-23 - Standard Specification for Packaged, Dry, Combined Materials for Concrete and High Strength Mortar
Effective Date
01-Jul-2011
Referred By
ASTM C1714/C1714M-23 - Standard Specification for Preblended Dry Mortar Mix for Unit Masonry
Effective Date
01-Jul-2011
Referred By
ASTM C1586-20 - Standard Guide for Quality Assurance of Mortars
Effective Date
01-Jul-2011
Referred By
ASTM C1660-10(2018) - Standard Specification for Thin-bed Mortar for Autoclaved Aerated Concrete (AAC) Masonry
Effective Date
01-Jul-2011
Referred By
ASTM E2992/E2992M-17 - Standard Test Method for Evaluating Response Robot Mobility: Traverse Sand Terrain
Effective Date
01-Jul-2011
Referred By
ASTM C1180-22 - Standard Terminology of Mortar and Grout for Unit Masonry
Effective Date
01-Jul-2011
Referred By
ASTM C404-18 - Standard Specification for Aggregates for Masonry Grout
Effective Date
01-Jul-2011
Referred By
ASTM E754-80(2022) - Standard Test Method for Pullout Resistance of Ties and Anchors Embedded in Masonry Mortar Joints
Effective Date
01-Jul-2011
Referred By
ASTM C270-19ae1 - Standard Specification for Mortar for Unit Masonry
Effective Date
01-Jul-2011
Referred By
ASTM C627-18e1 - Standard Test Method for Evaluating Ceramic Floor Tile Installation Systems Using the Robinson-Type Floor Tester
Effective Date
01-Jul-2011
Referred By
ASTM C1314-23a - Standard Test Method for Compressive Strength of Masonry Prisms
Effective Date
01-Jul-2011

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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: C144 −11 American Association State Highway and Transportation Officials Standard
AASHTO No.: M45-70 (1974)
Standard Specification for
1
Aggregate for Masonry Mortar
This standard is issued under the fixed designation C144; 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 C404 Specification for Aggregates for Masonry Grout
D75 Practice for Sampling Aggregates
1.1 This specification covers aggregate for use in masonry
mortar.
3. Materials and Manufacture
1.2 The values stated in SI units are to be regarded as the
3.1 Aggregate for use in masonry mortar shall consist of
standard. The values given in parentheses are for information
only. natural sand or manufactured sand. Manufactured sand is the
product obtained by crushing stone, gravel, or air-cooled iron
1.3 The following precautionary caveat pertains only to the
blast-furnace slag specially processed to ensure suitable gra-
test methods portion, Section 7, of this standard. This standard
dation.
does not purport to address all of the safety problems, if any,
associatedwithitsuse.Itistheresponsibilityoftheuserofthis
NOTE 1—Care should be taken to ensure a suitable particle shape, since
standard to establish appropriate safety and health practices
excessivequantitiesofflatandelongatedparticleshavehistoricallycaused
and determine the applicability of regulatory limitations prior
problems with workability.
to use.
4. Grading
2. Referenced Documents
2 4.1 Aggregate for use in masonry mortar shall be graded
2.1 ASTM Standards:
within the following limits, depending upon whether natural
C40 Test Method for Organic Impurities in Fine Aggregates
sand or manufactured sand is to be used:
for Concrete
Percent Passing
C87 Test Method for Effect of Organic Impurities in Fine
Sieve Designation Natural Sand Manufactured
Aggregate on Strength of Mortar
Sand
C88 Test Method for Soundness of Aggregates by Use of
4.75-mm (No. 4) 100 100
2.36-mm (No. 8) 95 to 100 95 to 100
Sodium Sulfate or Magnesium Sulfate
1.18-mm (No. 16) 70 to 100 70 to 100
C117 Test Method for Materials Finer than 75-µm (No. 200)
600-µm (No. 30) 40 to 75 40 to 75
Sieve in Mineral Aggregates by Washing
300-µm (No. 50) 10 to 35 20 to 40
150-µm (No. 100) 2 to 15 10 to 25
C123 Test Method for Lightweight Particles in Aggregate
75-µm (No. 200) 0 to 5 0 to 10
C128 Test Method for Density, Relative Density (Specific
4.2 The aggregate shall not have more than 50 % retained
Gravity), and Absorption of Fine Aggregate
C136 Test Method for Sieve Analysis of Fine and Coarse between any two consecutive sieves of those listed in 4.1 nor
Aggregates more than 25 % between 300-µm (No. 50) and the 150-µm
C142 Test Method for Clay Lumps and Friable Particles in (No. 100) sieve.
Aggregates
4.3 If the fineness modulus varies by more than 0.20 from
C270 Specification for Mortar for Unit Masonry
the value assumed in selecting proportions for the mortar, the
aggregate shall be rejected unless suitable adjustments are
1
This specification is under the jurisdiction of ASTM Committee C12 on
made in proportions to compensate for the change in grading.
Mortars and Grouts for Unit Masonry and is the direct responsibility of Subcom-
mittee C12.04 on Specifications for Aggregates for Mortars.
NOTE 2—For heavy construction employing joints thicker than 12.5
Current edition approved July 1, 2011. Published July 2011. Originally approved
1
mm ( ⁄2 in.), a coarser aggregate may be desirable; for such work a fine
in 1939. Last previous edition approved in 2004 as C144 – 04. DOI: 10.1520/
aggregate conforming to Specification C404 is satisfactory.
C0144-11.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.4 When an aggregate fails the gradation limits specified in
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
4.1 and 4.2, its use is permitted provided the mortar can be
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. prepared to comply with the aggregate ratio, water retention,
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C144 − 11
air content, and compressive strength requirements of the limitations set forth in Section 4, not greater than 10 % when
property specifications of Specification C270. sodium sulfate is used or 15 % when magnesium sulfate is
used.
5. Composition
6.2 Aggregate failing to meet the requireme
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM 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.
American Association State Highway and Transportation Officials Standard
Designation:C144–04 Designation: C144 – 11 AASHTO No.: M45-70 (1974)
Standard Specification for
1
Aggregate for Masonry Mortar
This standard is issued under the fixed designation C144; 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 aggregate for use in masonry mortar.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 The following precautionary caveat pertains only to the test methods portion, Section 7, of this standard. This standard does
not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard
to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
C40 Test Method for Organic Impurities in Fine Aggregates for Concrete
C87 Test Method for Effect of Organic Impurities in Fine Aggregate on Strength of Mortar
C88 Test Method for Soundness of Aggregates by Use of Sodium Sulfate or Magnesium Sulfate
C117 Test Method for Materials Finer than 75-m (No. 200) Sieve in Mineral Aggregates by Washing
C123 Test Method for Lightweight Particles in Aggregate
C128 Test Method for Density, Relative Density (Specific Gravity), and Absorption of Fine Aggregate
C136 Test Method for Sieve Analysis of Fine and Coarse Aggregates
C142 Test Method for Clay Lumps and Friable Particles in Aggregates
C270 Specification for Mortar for Unit Masonry
C404 Specification for Aggregates for Masonry Grout
D75 Practice for Sampling Aggregates
3. Materials and Manufacture
3.1 Aggregate for use in masonry mortar shall consist of natural sand or manufactured sand. Manufactured sand is the product
obtained by crushing stone, gravel, or air-cooled iron blast-furnace slag specially processed to ensure suitable gradation.
NOTE 1—Care should be taken to ensure a suitable particle shape, since excessive quantities of flat and elongated particles have historically caused
problems with workability.
4. Grading
4.1 Aggregate for use in masonry mortar shall be graded within the following limits, depending upon whether natural sand or
manufactured sand is to be used:
Percent Passing
Sieve Size Natural Sand Manufactured
Sand
Sieve Designation Natural Sand Manufactured
Sand
4.75-mm (No. 4) 100 100
2.36-mm (No. 8) 95 to 100 95 to 100
1.18-mm (No. 16) 70 to 100 70 to 100
600-µm (No. 30) 40 to 75 40 to 75
300-µm (No. 50) 10 to 35 20 to 40
1
This specification is under the jurisdiction of ASTM Committee C12 on Mortars and Grouts for Unit Masonry and is the direct responsibility of Subcommittee C12.04
on Specifications for Aggregates for Mortars.
Current edition approved Dec.July 1, 2004.2011. Published January 2005.July 2011. Originally approved in 1939. Last previous edition approved in 20032004 as
C144 – 034. DOI: 10.1520/C0144-04.10.1520/C0144-11.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
C144 – 11
150-µm (No. 100) 2 to 15 10 to 25
75-µm (No. 200) 0 to 5 0 to 10
4.2 The aggregate shall not have more than 50 % retained between any two consecutive sieves of those listed in 4.1 nor more
than 25 % between 300-µm (No. 50) and the 150-µm (No. 100) sieve.
4.3 If the fineness modulus varies by more than 0.20 from the value assumed in selecting proportions for the mortar, the
aggregate shall be rejected unless suitable adjustments are made in proportions to compensate for the change in grading.
1
NOTE 2—For heavy construction employing joints thicker than 12.5 mm ( ⁄2 in.), a coarser aggregate may be desirable; for such work a fine aggregate
conforming to Specification C404 is satisfactory.
4.4 Whenanaggregatefailsthegradationlimitsspecifiedin4.1and4.2,itsuseispe
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM 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.
American Association State Highway and Transportation Officials Standard
Designation:C144–04 Designation: C144 – 11 AASHTO No.: M45-70 (1974)
Standard Specification for
1
Aggregate for Masonry Mortar
This standard is issued under the fixed designation C144; 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 aggregate for use in masonry mortar.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 The following precautionary caveat pertains only to the test methods portion, Section 7, of this standard. This standard does
not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard
to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
C40 Test Method for Organic Impurities in Fine Aggregates for Concrete
C87 Test Method for Effect of Organic Impurities in Fine Aggregate on Strength of Mortar
C88 Test Method for Soundness of Aggregates by Use of Sodium Sulfate or Magnesium Sulfate
C117 Test Method for Materials Finer than 75-m (No. 200) Sieve in Mineral Aggregates by Washing
C123 Test Method for Lightweight Particles in Aggregate
C128 Test Method for Density, Relative Density (Specific Gravity), and Absorption of Fine Aggregate
C136 Test Method for Sieve Analysis of Fine and Coarse Aggregates
C142 Test Method for Clay Lumps and Friable Particles in Aggregates
C270 Specification for Mortar for Unit Masonry
C404 Specification for Aggregates for Masonry Grout
D75 Practice for Sampling Aggregates
3. Materials and Manufacture
3.1 Aggregate for use in masonry mortar shall consist of natural sand or manufactured sand. Manufactured sand is the product
obtained by crushing stone, gravel, or air-cooled iron blast-furnace slag specially processed to ensure suitable gradation.
NOTE 1—Care should be taken to ensure a suitable particle shape, since excessive quantities of flat and elongated particles have historically caused
problems with workability.
4. Grading
4.1 Aggregate for use in masonry mortar shall be graded within the following limits, depending upon whether natural sand or
manufactured sand is to be used:
Percent Passing
Sieve Size Natural Sand Manufactured
Sand
Sieve Designation Natural Sand Manufactured
Sand
4.75-mm (No. 4) 100 100
2.36-mm (No. 8) 95 to 100 95 to 100
1.18-mm (No. 16) 70 to 100 70 to 100
600-µm (No. 30) 40 to 75 40 to 75
300-µm (No. 50) 10 to 35 20 to 40
1
This specification is under the jurisdiction of ASTM Committee C12 on Mortars and Grouts for Unit Masonry and is the direct responsibility of Subcommittee C12.04
on Specifications for Aggregates for Mortars.
Current edition approved Dec.July 1, 2004.2011. Published January 2005.July 2011. Originally approved in 1939. Last previous edition approved in 20032004 as
C144 – 034. DOI: 10.1520/C0144-04.10.1520/C0144-11.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
C144 – 11
150-µm (No. 100) 2 to 15 10 to 25
75-µm (No. 200) 0 to 5 0 to 10
4.2 The aggregate shall not have more than 50 % retained between any two consecutive sieves of those listed in 4.1 nor more
than 25 % between 300-µm (No. 50) and the 150-µm (No. 100) sieve.
4.3 If the fineness modulus varies by more than 0.20 from the value assumed in selecting proportions for the mortar, the
aggregate shall be rejected unless suitable adjustments are made in proportions to compensate for the change in grading.
1
NOTE 2—For heavy construction employing joints thicker than 12.5 mm ( ⁄2 in.), a coarser aggregate may be desirable; for such work a fine aggregate
conforming to Specification C404 is satisfactory.
4.4 Whenanaggregatefailsthegradationlimitsspecifiedin4.1and4.2,itsuseispe
...

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Standard Test Method for Rate of Water Absorption of Masonry Mortars

SIGNIFICANCE AND USE
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.
Note 1: This test method is specified in Specification C1384 for demonstrating compliance of mortar admixtures classified as Water Repellent. In this compliance testing, the admixed mortar is compared to a reference mortar made with the same mortar materials except that it does not include the admixture. For quality control testing of water repellent preblended dry mortar mixes, the reference mortar is not typically available since the water repellent additive is added during the manufacturing process prior to bagging the final product. In these cases, the procedure in Annex A1 can be used to determine the relative resistance of the mortar to absorption by capillary uptake.
SCOPE
1.1 This test method covers a standardized laboratory procedure for determining the relative water absorption by capillary uptake (wicking) characteristics of masonry mortars. This test method is not applicable for determining the effectiveness of water repellent coatings.  
1.2 The text of this standard refers to 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.  
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.3.1 Inch-pound units are given in parentheses for temperature specification and are for information only.  
1.4 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.  
1.5 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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ASTM
ASTM C1180-22(Terminology)
Standard Terminology of Mortar and Grout for Unit Masonry

SCOPE
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.  
1.3 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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ASTM
ASTM C1019-20(Test Method)
Standard Test Method for Sampling and Testing Grout for Masonry

SIGNIFICANCE AND USE
3.1 Grout used in masonry is a fluid mixture of cementitious materials and aggregate with a high water content for ease of placement.  
3.1.1 During construction, grout is placed within or between absorptive masonry units. Excess water must be removed from grout specimens in order to provide compressive strength test results more nearly indicative of the grout strength in the wall. In this test method, molds are made from masonry units having the same absorption and moisture content characteristics as those being used in the construction.  
3.2 This test method is used to either help select grout proportions by comparing test values or as a quality control test for uniformity of grout preparation during construction.  
3.3 The physical exposure condition and curing of the grout are not exactly reproduced, but this test method does subject the grout specimens to absorption conditions similar to those experienced by grout in the wall.
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.
Note 1: The testing agency performing this test method should be evaluated in accordance with Practice C1093.  
1.2 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.  
1.3 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.  
1.4 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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ASTM
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.  
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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ASTM
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.  
1.2 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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ASTM
ASTM C887-20(Specification)
Standard Specification for Packaged, Dry, Combined Materials for Surface Bonding Mortar

ABSTRACT
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. The materials used as ingredients shall consist of the following: cements which shall be a Portland cement, blended hydraulic cement, hydraulic cement, or masonry cement; Type S or SA hydrated lime; Class N, F, or S pozzolan; aggregates; glass fibers; and additives. Physical properties of the packaged materials shall conform to the flexural strength, compressive strength, time of setting, and water retention requirements. The net weight, amount of mixing water, unit weight, and yield of the surface bonding mortar shall be calculated and reported.
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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