ASTM-E2260 Standard Guide for Repointing (Tuckpointing) Historic Masonry

ASTM-E2260 - 2003 R12(E1) EDITION - CURRENT
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Standard Guide for Repointing (Tuckpointing) Historic Masonry
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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 and health practices and determine the applicability of regulatory requirements prior to use.

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.

Keywords

historic masonry; mortar; pointing; repointing; tuckpointing; ICS Number Code 91.080.30 (Masonry)

To find similar documents by ASTM Volume:

04.12 (Building Constructions (II): E2112 - latest; Sustainability; Property Management Systems; Technology and Underground Utilities)

To find similar documents by classification:

91.080.30 (Masonry)

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Document Number

ASTM-E2260-03(2012)e1

Revision Level

2003 R12(E1) EDITION

Status

Current

Modification Type

Editorially changed

Publication Date

Nov. 15, 2013

Document Type

Guide

Page Count

5 pages

Committee Number

E06.24