ASTM C1713-23
(Specification)Standard Specification for Mortars for the Repair of Historic Masonry
Standard Specification for Mortars for the Repair of Historic Masonry
SCOPE
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.
1.4 Mortars tested using this specification are laboratory-prepared mortars and do not represent in-place, site mortars.
1.5 This specification provides a basis for the design of an appropriate mortar formulation based upon performance, material and aesthetic requirements. Use of this specification requires a thorough understanding of the function, maintenance, and repair requirements for the preservation and continued performance of the masonry assembly in the context of the assembly’s structure, water management, and long-term performance.
1.6 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.
1.7 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.
1.8 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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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.
Designation: C1713 − 23
Standard Specification for
1
Mortars for the Repair of Historic Masonry
This standard is issued under the fixed designation C1713; 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 specification covers mortar for the repair of ma-
Barriers to Trade (TBT) Committee.
sonry constructed with methods and materials that pre-date the
origination of current standards of construction. The mortar
2. Referenced Documents
may be used for non-structural purposes such as repointing of
2
2.1 ASTM Standards:
the masonry, or for structural purposes such as, but not
C5 Specification for Quicklime for Structural Purposes
restricted to, re-construction or repair of mortar joints that
C10/C10M Specification for Natural Cement
contribute to the structural integrity of the masonry.
C61/C61M Specification for Gypsum Keene’s Cement
1.2 Masonry includes the following units laid in mortar: (1)
C91/C91M Specification for Masonry Cement
cast stone, (2) clay brick and tile, (3) concrete masonry, (4)
C109/C109M Test Method for Compressive Strength of
natural stone, (5) terra cotta, and (6) calcium silicate.
Hydraulic Cement Mortars (Using 2-in. or [50 mm] Cube
Specimens)
1.3 This specification may be used to pre-qualify mortar for
C110 Test Methods for Physical Testing of Quicklime,
a project.
Hydrated Lime, and Limestone
1.4 Mortars tested using this specification are laboratory-
C136/C136M Test Method for Sieve Analysis of Fine and
prepared mortars and do not represent in-place, site mortars.
Coarse Aggregates
1.5 This specification provides a basis for the design of an
C141/C141M Specification for Hydrated Hydraulic Lime for
appropriate mortar formulation based upon performance, ma-
Structural Purposes
terial and aesthetic requirements. Use of this specification
C144 Specification for Aggregate for Masonry Mortar
requires a thorough understanding of the function,
C150/C150M Specification for Portland Cement
maintenance, and repair requirements for the preservation and
C207 Specification for Hydrated Lime for Masonry Pur-
continued performance of the masonry assembly in the context
poses
of the assembly’s structure, water management, and long-term
C216 Specification for Facing Brick (Solid Masonry Units
performance.
Made from Clay or Shale)
C270 Specification for Mortar for Unit Masonry
1.6 The values stated in inch-pound units are to be regarded
C305 Practice for Mechanical Mixing of Hydraulic Cement
as standard. The values given in parentheses are mathematical
Pastes and Mortars of Plastic Consistency
conversions to SI units that are provided for information only
C511 Specification for Mixing Rooms, Moist Cabinets,
and are not considered standard.
Moist Rooms, and Water Storage Tanks Used in the
1.7 This standard does not purport to address all of the
Testing of Hydraulic Cements and Concretes
safety concerns, if any, associated with its use. It is the
C595/C595M Specification for Blended Hydraulic Cements
responsibility of the user of this standard to establish appro-
C780 Test Method for Preconstruction and Construction
priate safety, health, and environmental practices and deter-
Evaluation of Mortars for Plain and Reinforced Unit
mine the applicability of regulatory limitations prior to use.
Masonry
1.8 This international standard was developed in accor-
C948 Test Method for Dry and Wet Bulk Density, Water
dance with internationally recognized principles on standard-
Absorption, and Apparent Porosity of Thin Sections of
ization established in the Decision on Principles for the
Glass-Fiber Reinforced Concrete
C979/C979M Specification for Pigments for Integrally Col-
ored Concrete
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-
2
mittee C12.03 on Specifications for Mortars. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved April 1, 2023. Published April 2023. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 2010. Last previous edition approved in 2017 as C1713 – 17. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/C1713–23. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive,
...
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: C1713 − 17 C1713 − 23
Standard Specification for
1
Mortars for the Repair of Historic Masonry
This standard is issued under the fixed designation C1713; 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 specification covers mortar for the repair of masonry that was constructed with methods and materials that pre-date the
origination of current standards of construction that are compatible with it. 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 masonry unitsbrick and clay brick and tile, (3)
concrete masonry units, masonry, (4) natural stone, and (5) terra cotta.cotta, and (6) calcium silicate.
1.3 This specification may be used to pre-qualify mortar for a project.
1.4 Mortars tested using this specification are laboratory-prepared mortars and do not represent in-place, site mortars.
1.5 This specification provides a basis for the design of an appropriate mortar formulation based upon performance, material and
aesthetic requirements. Use of this specification should be based on requires a thorough understanding of the function,
maintenance, and repair requirements for the preservation and continued performance of the masonry assembly in the context of
the building structure assembly’s structure, water management, and long-term performance. The user of this specification is
responsible for examining all criteria and selecting the appropriate mortar formulation and properties required.
1.6 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.
1.7 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 and health practices and determine the applicability of regulatory
limitations prior to use.
1.7 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.
1.8 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.
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 C12.03
on Specifications for Mortars.
Current edition approved June 1, 2017April 1, 2023. Published July 2017April 2023. Originally approved in 2010. Last previous edition approved in 20152017 as
C1713 – 15.C1713 – 17. DOI: 10.1520/C1713–17.10.1520/C1713–23.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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C1713 − 23
2. Referenced Documents
2
2.1 ASTM Standards:
C5 Specification for Quicklime for Structural Purposes
C10C10/C10M Specification for Natural Cement
C61C61/C61M Specification for Gypsum Keene’s Cement
C91C91/C91M Specification for Masonry Cement
C109/C109M Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or [50 mm] Cube Specimens)
C110 Test Methods for Physical Testing of Quicklime, Hydrated Lime, and Limestone
C136C136/C136M Test Method for Sieve Analysis of Fine and Coarse Aggregates
C141C141/C141M Specification for Hydrated Hydraulic Lime for Structural Purposes
C144 Specification for Aggregate for Masonry Mortar
C150C150/C150M Specification for Portland Cement
C207 Specification for Hydrated Lime for Masonry Purposes
C216 Specification for Facing Brick (Solid Masonry Units Made from Clay or Shale)
C270 Specification
...
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