ASTM E2260-21

Standard Guide for Repointing (Tuckpointing) Historic Masonry

SIGNIFICANCE AND USE
4.1 Repointing masonry improves weather resistance, reduces water penetration, maintains structural and visual integrity, and prolongs the life of the building by allowing a mortar joint to shed water and avoid the accumulation and penetration of rainwater between mortar and masonry units.  
4.2 This guide provides for the selection of the most effective methods appropriate for repointing masonry based upon the following parameters:  
4.2.1 Determination of joints to be repointed.  
4.2.2 Evaluation of in-situ masonry.  
4.2.3 Evaluation of techniques for removal of mortar.  
4.2.4 Determination of appropriate repointing mortar.  
4.2.5 Selection of repointing mortar.  
4.2.6 Establishing the method of execution of the work.  
4.2.7 Visual inspection of the work.
SCOPE
1.1 This guide applies only to existing historic masonry construction. For purposes of this guide historic masonry is intended to refer to buildings that have significant historic, architectural, cultural or social meaning and are constructed of masonry materials. Similar techniques and evaluation should be employed for non-historic masonry, but are not addressed in this guide.  
1.2 This guide outlines procedures for repointing historic masonry and is intended to provide guidelines for the user to establish project-specific requirements for repointing of historic masonry.  
1.3 This guide only pertains to masonry units: brick, terra cotta, stone, cast stone, and concrete brick laid in mortar, and may or may not be appropriate for other masonry units.  
1.4 This guide addresses repointing (tuckpointing) as defined in 3.1.3.  
1.5 When considering repointing, especially on masonry of artistic, architectural, cultural, or historical significance, guidance from a specialist experienced in historic masonry and repointing should be sought.  
1.6 This guide does not address pointing styles or profiles used on masonry or the methods of producing them.  
1.7 Additional repairs that may impact the structural integrity of the masonry may necessitate that a structural stability analysis be completed prior to the execution of any work.  
1.8 Following this guide may involve hazardous materials, operations, and equipment. 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 requirements prior to use.  
1.9 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: 14-Apr-2021
• ICS: 91.080.30 - Masonry
• Technical Committee: E06 - Performance of Buildings
• Drafting Committee: E06.24 - Building Preservation and Rehabilitation Technology

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: E2260 − 21
Standard Guide for
1
Repointing (Tuckpointing) Historic Masonry
This standard is issued under the fixed designation E2260; 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 1.9 This international standard was developed in accor-
dance with internationally recognized principles on standard-
1.1 This guide applies only to existing historic masonry
ization established in the Decision on Principles for the
construction. For purposes of this guide historic masonry is
Development of International Standards, Guides and Recom-
intended to refer to buildings that have significant historic,
mendations issued by the World Trade Organization Technical
architectural, cultural or social meaning and are constructed of
Barriers to Trade (TBT) Committee.
masonry materials. Similar techniques and evaluation should
be employed for non-historic masonry, but are not addressed in
2. Referenced Documents
this guide.
2
2.1 ASTM Standards:
1.2 This guide outlines procedures for repointing historic
C67/C67M Test Methods for Sampling and Testing Brick
masonry and is intended to provide guidelines for the user to
and Structural Clay Tile
establish project-specific requirements for repointing of his-
C140/C140M Test Methods for Sampling and Testing Con-
toric masonry.
crete Masonry Units and Related Units
C170/C170M Test Method for Compressive Strength of
1.3 This guide only pertains to masonry units: brick, terra
Dimension Stone
cotta, stone, cast stone, and concrete brick laid in mortar, and
C780 Test Method for Preconstruction and Construction
may or may not be appropriate for other masonry units.
Evaluation of Mortars for Plain and Reinforced Unit
1.4 This guide addresses repointing (tuckpointing) as de-
Masonry
fined in 3.1.3.
C1324 Test Method for Examination and Analysis of Hard-
1.5 When considering repointing, especially on masonry of
ened Masonry Mortar
artistic, architectural, cultural, or historical significance, guid-
C1713 Specification for Mortars for the Repair of Historic
ance from a specialist experienced in historic masonry and
Masonry
repointing should be sought.
E631 Terminology of Building Constructions
E1857 Guide for Selection of Cleaning Techniques for
1.6 This guide does not address pointing styles or profiles
Masonry, Concrete, and Stucco Surfaces
used on masonry or the methods of producing them.
2.2 Other Documents:
1.7 Additional repairs that may impact the structural integ-
BIA Technical Note 1 Hot and Cold Weather Construction,
rity of the masonry may necessitate that a structural stability
3
June 2018
analysis be completed prior to the execution of any work.
BIA Technical Note 46 Maintenance of Brick Masonry,
3
1.8 Following this guide may involve hazardous materials,
December 2017
operations, and equipment. This standard does not purport to
The Secretary of the Interior’s Standards for the Treatment
4
address all of the safety concerns, if any, associated with its
of Historic Properties, 2017
5
use. It is the responsibility of the user of this standard to
TMS 602 Specifications for Masonry Structures
establish appropriate safety, health, and environmental prac-
tices and determine the applicability of regulatory require-
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
ments prior to use.
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.
1 3
This guide is under the jurisdiction of ASTM Committee E06 on Performance Available from The Brick Industry Association (BIA), 12007 Sunrise Valley
of Buildings and is the direct responsibility of Subcommittee E06.24 on Building Dr., Suite 430, Reston, VA 20191, https://www.gobrick.org.
4
Preservation and Rehabilitation Technology. Available from U.S. Department of the Interior, National Park Service,
Current edition approved April 15, 2021. Published May 2021. Originally Technical Preservation Services, https://www.nps.gov/tps/standards.htm.
ɛ1 5
approved in 2003. Last previous edition approved in 2012 as E2260 – 03 (2012) . Available fromThe Masonry Society (TMS), 105 South Sunset Street, Suite Q,
DOI: 10.1520/E2260-21. Longmont, CO 80501-6172, https://www.masonrysociety.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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E2260 − 21
3. Terminology 4.2.7 Visual inspection of the work.
3.1 Definitions of Terms Specific to This Standard:
5. Determination of Joints t
...

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.
´1
Designation: E2260 − 03 (Reapproved 2012) E2260 − 21
Standard Guide for
1
Repointing (Tuckpointing) Historic Masonry
This standard is issued under the fixed designation E2260; 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
ε NOTE—Section 2.2 was editorially corrected in November 2013.
1. Scope
1.1 This guide applies only to existing historic masonry construction. For purposes of this guide historic masonry is intended to
refer to buildings that have significant historic, architectural, cultural or social meaning and are constructed of masonry materials.
Similar techniques and evaluation should be employed for non-historic masonry, but are not addressed in this guide.
1.2 This guide outlines procedures for repointing historic masonry and is intended to provide guidelines for the user to establish
project-specific requirements for repointing of historic masonry.
1.3 This guide only pertains to masonry units: brick, terra cotta, stone, cast stone, and concrete brick laid in mortar, and may or
may not be appropriate for other masonry units.
1.4 This guide addresses repointing (tuckpointing) as defined in 3.1.3.
1.5 When considering repointing, especially on masonry of artistic, architectural, cultural, or historical significance, guidance from
a specialist experienced in historic masonry and repointing should be sought.
1.6 This guide does not address pointing styles or profiles used on masonry or the methods of producing them.
1.7 Additional repairs that may impact the structural integrity of the masonry may necessitate that a structural stability analysis
be completed prior to the execution of any work.
1.8 Following this guide may involve hazardous materials, operations, and equipment. 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 requirements
prior to use.
1.9 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 guide is under the jurisdiction of ASTM Committee E06 on Performance of Buildings and is the direct responsibility of Subcommittee E06.24 on Building
Preservation and Rehabilitation Technology.
Current edition approved Jan. 1, 2012April 15, 2021. Published January 2012May 2021. Originally publishedapproved in 2003. Last previous edition approved in
ɛ1
20032012 as E2260 – 03.E2260 – 03 (2012) . DOI: 10.1520/E2260-03R12E01.10.1520/E2260-21.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E2260 − 21
2. Referenced Documents
2
2.1 ASTM Standards:
C67C67/C67M Test Methods for Sampling and Testing Brick and Structural Clay Tile
C140C140/C140M Test Methods for Sampling and Testing Concrete Masonry Units and Related Units
C170C170/C170M Test Method for Compressive Strength of Dimension Stone
C780 Test Method for Preconstruction and Construction Evaluation of Mortars for Plain and Reinforced Unit Masonry
C1324 Test Method for Examination and Analysis of Hardened Masonry Mortar
C1713 Specification for Mortars for the Repair of Historic Masonry
E631 Terminology of Building Constructions
E1857 Guide for Selection of Cleaning Techniques for Masonry, Concrete, and Stucco Surfaces
C270 Specification for Mortar for Unit Masonry
C1072 Test Methods for Measurement of Masonry Flexural Bond Strength
E631 Terminology of Building Constructions
2.2 Other Referenced Documents:
3
ACI 530.1 ⁄ASCE 6 ⁄TMS 602 Specifications for Masonry Structures
BIA Technical Note 7F1 Moisture Resistance of Brick Masonry Maintenance, reissued October 1998Hot and Cold Weather
3
Construction, June 2018
3
BIA Technical Note 146 All-Weather Construction, revised March 1992Maintenance of Brick Masonry, December 2017
4
The Secretary of the Interior’s Standards for the Treatment of Historic Properties, revised 19952017
London, M., TMS 602Maso
...