ASTM C1324-20

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.

General Information

• Status: Historical
• Publication Date: 31-May-2020
• ICS: 71.040.40 - Chemical analysis
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• Technical Committee: C12 - Mortars and Grouts for Unit Masonry
• Drafting Committee: C12.02 - Research and Methods of Test

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: C1324 − 20
Standard Test Method for
1
Examination and Analysis of Hardened Masonry Mortar
This standard is issued under the fixed designation C1324; 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* Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
1.1 This test method covers procedures for petrographic
Barriers to Trade (TBT) Committee.
examination and chemical analysis of samples of masonry
mortars. Based upon such examination and analysis, propor-
2. Referenced Documents
tions of components in masonry mortars can be determined.
2
2.1 ASTM Standards:
NOTE 1—This method is also applicable to hydraulic cement-based
C114 Test Methods for Chemical Analysis of Hydraulic
stucco and plaster. Some historic mortars may contain non-resolvable
Cement
constituents that may interfere. However, significant information may be
C125 Terminology Relating to Concrete and Concrete Ag-
obtained by petrographic examinations.
gregates
1.2 Interpretations and calculations of chemical results are
C144 Specification for Aggregate for Masonry Mortar
dependent upon results of the petrographic examination. The
C270 Specification for Mortar for Unit Masonry
useofthechemicalresultsaloneiscontrarytotherequirements
C295/C295M Guide for Petrographic Examination of Ag-
of this test method.
gregates for Concrete
1.3 Procedures for sampling, petrographic examination, C457/C457M Test Method for Microscopical Determination
chemical analysis, and calculations of component proportions of Parameters of the Air-Void System in Hardened Con-
are given in the following sections: crete
C823/C823M Practice for Examination and Sampling of
Section
Sampling 7
Hardened Concrete in Constructions
Petrographic examination 8
C856/C856M Practice for Petrographic Examination of
Chemical analysis 9
Hardened Concrete
Mortar proportion calculations 10
Report 11
C1084 Test Method for Portland-Cement Content of Hard-
ened Hydraulic-Cement Concrete
1.4 The values stated in SI units are to be regarded as
C1180 Terminology of Mortar and Grout for Unit Masonry
standard. No other units of measurement are included in this
D1193 Specification for Reagent Water
standard.
1.5 The text of this standard references notes and footnotes
3. Terminology
that provide explanatory material. These notes and footnotes
3.1 Terms used in this test method are defined in Terminol-
(excluding those in tables and figures) shall not be considered
ogy standards C125, C1180, or the other referenced ASTM
as requirements of the standard.
standards.
1.6 This standard does not purport to address all of the
4. Significance and Use
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
4.1 This test method provides procedures for petrographic
priate safety, health, and environmental practices and deter- examination and chemical analysis of mortar for components
mine the applicability of regulatory limitations prior to use.
of masonry mortar. These components may include portland
1.7 This international standard was developed in accor- cement, hydrated calcitic or dolomitic lime, masonry cement,
dance with internationally recognized principles on standard-
aggregates, and air.
ization established in the Decision on Principles for the
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.
1
This test method is under the jurisdiction ofASTM Committee C12 on Mortars
and Grouts for Unit Masonry and is the direct responsibility of Subcommittee
2
C12.02 on Research and Methods of Test. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved June 1, 2020. Published June 2020. Originally contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
approved in 2002. Last previous edition approved in 2015 as C1324 – 15. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/C1324-20. the ASTM website.
*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

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C1324 − 20
4.3 The chemical data considered together with results of 6.2.6 Hot plate,
petrographicexaminationofamortarprovideforcalculationof 6.2.7 Buchner porcelain funnel,
component proportions and thus allow
...

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.
Designation: C1324 − 15 C1324 − 20
Standard Test Method for
1
Examination and Analysis of Hardened Masonry Mortar
This standard is issued under the fixed designation C1324; 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*
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
Sampling 7
Petrographic examination 8
Petrographic examination 8
Chemical analysis 9
Chemical analysis 9
Mortar proportion calculations 10
Mortar proportion calculations 10
Report 11
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 safety, health, and healthenvironmental 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.
2. Referenced Documents
2
2.1 ASTM Standards:
C114 Test Methods for Chemical Analysis of Hydraulic Cement
C125 Terminology Relating to Concrete and Concrete Aggregates
C144 Specification for Aggregate for Masonry Mortar
C270 Specification for Mortar for Unit Masonry
C295C295/C295M Guide for Petrographic Examination of Aggregates for Concrete
C457C457/C457M Test Method for Microscopical Determination of Parameters of the Air-Void System in Hardened Concrete
C823C823/C823M Practice for Examination and Sampling of Hardened Concrete in Constructions
1
This test method is under the jurisdiction of ASTM Committee C12 on Mortars and Grouts for Unit Masonry and is the direct responsibility of Subcommittee C12.02
on Research and Methods of Test.
Current edition approved Dec. 1, 2015June 1, 2020. Published January 2016June 2020. Originally approved in 2002. Last previous edition approved in 20102015 as
C1324 – 10.C1324 – 15. DOI: 10.1520/C1324-15.10.1520/C1324-20.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*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 ----------------------
C1324 − 20
C856C856/C856M Practice for Petrographic Examination of Hardened Concrete
C1084 Test Method for Portland-Cement Content of Hardened Hydraulic-Cement Concrete
C1180 Terminology of Mortar and Grout for Unit Masonry
D1193 Specification for Reagent Water
3. Terminology
3.1 Terms used in this test method are defined in Terminology standards C125, C1180, or the other referenced ASTM standards.
4. 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 por
...