ASTM C56-22

Standard Specification for Structural Clay Nonloadbearing Tile

ABSTRACT
This specification covers structural clay nonloadbearing tile (partition, fireproofing, and furring). One grade of tile is covered, Grade NB. Structural clay non-load-bearing tile shall conform to the specified requirements for absorption. Tile intended for use in fireproofing structural members shall be of such sizes and shapes that they can be erected to cover completely the exposed surfaces of the members. All tile shall be reasonably free of laminations and of cracks, blisters, surface roughness, and other defects that would interfere with the proper setting of the tile or impair the strength or permanence of the construction.
SCOPE
1.1 This specification covers structural clay nonloadbearing tile (partition, fireproofing, and furring). Tile intended for use in fireproofing structural members shall be of such sizes and shapes that they can be erected to completely cover the exposed surfaces of the members. Fireproofing tile intended for use in load-bearing masonry shall conform to Specification C34.  
1.2 The property requirements of this specification apply at the time of purchase. The use of results from testing of tile extracted from masonry structures for determining conformance or non-conformance to the property requirements (Section 5) of this standard is beyond the scope of this specification.  
1.3 Tile covered by this specification are manufactured from clay, shale, or similar naturally occurring substances and subjected to a heat treatment at elevated temperatures (firing). The heat treatment must develop sufficient fired bond between the particulate constituents to provide the strength and durability requirements of this specification. (See firing and fired bond in Terminology C1232.)  
1.4 The text of this specification 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 this specification.  
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 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: Published
• Publication Date: 30-Nov-2022
• ICS: 81.080 - Refractories
• Technical Committee: C15 - Manufactured Masonry Units
• Drafting Committee: C15.02 - Brick and Structural Clay Tile

Standards Content (Sample)

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:C56 −22
Standard Specification for
1
Structural Clay Nonloadbearing Tile
This standard is issued under the fixed designation C56; the number immediately following the designation indicates the year of original
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* 2. Referenced Documents
2
1.1 This specification covers structural clay nonloadbearing 2.1 ASTM Standards:
tile (partition, fireproofing, and furring). Tile intended for use C34 Specification for Structural Clay Loadbearing Wall Tile
in fireproofing structural members shall be of such sizes and C67/C67M Test Methods for Sampling and Testing Brick
shapes that they can be erected to completely cover the and Structural Clay Tile
exposedsurfacesofthemembers.Fireproofingtileintendedfor C1232 Terminology for Masonry
use in load-bearing masonry shall conform to Specification
3. Terminology
C34.
3.1 Definitions—For definitions relating to structural clay
1.2 The property requirements of this specification apply at
nonload-bearing wall tile, refer to Terminology C1232.
the time of purchase. The use of results from testing of tile
extracted from masonry structures for determining confor-
4. Classification
mance or non-conformance to the property requirements (Sec-
4.1 One grade of tile is covered, designated Grade NB.
tion5)ofthisstandardisbeyondthescopeofthisspecification.
1.3 Tilecoveredbythisspecificationaremanufacturedfrom
5. Physical Properties
clay, shale, or similar naturally occurring substances and
5.1 Structural clay nonloadbearing tile, when tested in
subjected to a heat treatment at elevated temperatures (firing).
accordancewithTestMethodsC67/C67M,shallconformtothe
The heat treatment must develop sufficient fired bond between
following requirements for absorption:
the particulate constituents to provide the strength and dura-
A
Absorption by 1-h Boiling, %
bility requirements of this specification. (See firing and fired
Grade Individual Maximum
bond in Terminology C1232.)
NB 28
1.4 The text of this specification references notes and
footnotes that provide explanatory material. These notes and
A
The range in percentage absorption for tile delivered to any one job shall be not
footnotes (excluding those in tables and figures) shall not be
more than 12.
considered as requirements of this specification.
6. Dimensions and Permissible Variations
1.5 The values stated in inch-pound units are to be regarded
6.1 No overall dimension shall vary more than 3 % over or
as standard. The values given in parentheses are mathematical
under the specified dimension for any form or size of tile. See
conversions to SI units that are provided for information only
Note 1.
and are not considered standard.
NOTE 1—Purchasers and designers should ascertain the type and size of
1.6 This international standard was developed in accor-
tile, modular or non-modular, available in the locality under consideration
dance with internationally recognized principles on standard-
and should specify accordingly, stating the size and type represented by
ization established in the Decision on Principles for the
the available tile.
Development of International Standards, Guides and Recom-
Modular sizes are designated by the specified nominal dimensions
mendations issued by the World Trade Organization Technical which are equal to the actual manufactured dimensions plus the thickness
1
of one mortar joint, not to exceed ⁄2 in. (12.7 mm). For example, if the
Barriers to Trade (TBT) Committee.
modular, specified, or nominal dimensions of a unit are 4 by 8 by 12 in.
1
(102 by 203 by 305 mm) the actual manufactured dimensions may be 3 ⁄2
1 1
by 7 ⁄2 by 11 ⁄2 in. (114.7 by 215.7 by 317.7 mm).
1
This specification is under the jurisdiction of ASTM Committee C15 on
Manufactured Masonry Units and is the direct responsibility of Subcommittee
2
C15.02 on Brick and Structural Clay Tile. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Dec. 1, 2022. Published December 2022. Originally contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
approved in 1924. Last previous edition approved in 2017 as C56 – 13(2017). DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/C0056-22. 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,
...

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: C56 − 13 (Reapproved 2017) C56 − 22
Standard Specification for
1
Structural Clay Nonloadbearing Tile
This standard is issued under the fixed designation C56; 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 U.S. Department of Defense.
1. Scope Scope*
1.1 This specification covers structural clay nonloadbearing tile (partition, fireproofing, and furring). Tile intended for use in
fireproofing structural members shall be of such sizes and shapes that they can be erected to completely cover the exposed surfaces
of the members. Fireproofing tile intended for use in load-bearing masonry shall conform to Specification C34.
1.2 The property requirements of this specification apply at the time of purchase. The use of results from testing of tile extracted
from masonry structures for determining conformance or non-conformance to the property requirements (Section 5) of this
standard is beyond the scope of this specification.
1.3 Tile covered by this specification are manufactured from clay, shale, or similar naturally occurring substances and subjected
to a heat treatment at elevated temperatures (firing). The heat treatment must develop sufficient fired bond between the particulate
constituents to provide the strength and durability requirements of this specification. (See firing and fired bond in Terminology
C1232.)
1.4 Fireproofing tile intended for use in load-bearing masonry shall conform to Specification C34.
1.5 Tile intended for use in fireproofing structural members shall be of such sizes and shapes that they can be erected to cover
completely the exposed surfaces of the members.
1.4 The text of this specification 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 this specification.
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 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 C15 on Manufactured Masonry Units and is the direct responsibility of Subcommittee C15.02 on Brick
and Structural Clay Tile.
Current edition approved Dec. 1, 2017Dec. 1, 2022. Published January 2018December 2022. Originally approved in 1924. Last previous edition approved in 20132017
as C56 – 13.C56 – 13(2017). DOI: 10.1520/C0056-13R17.10.1520/C0056-22.
*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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C56 − 22
2. Referenced Documents
2
2.1 ASTM Standards:
C34 Specification for Structural Clay Loadbearing Wall Tile
C67C67/C67M Test Methods for Sampling and Testing Brick and Structural Clay Tile
C1232 Terminology for Masonry
3. Terminology
3.1 Definitions—For definitions relating to structural clay nonload-bearing wall tile, refer to Terminology C1232.
4. Classification
4.1 One grade of tile is covered, designated Grade NB.
4.2 If tile having a particular color (Note 1), texture, or finish are desired, these features shall be specified separately by the
purchaser.
NOTE 1—Color of tile varies with the type of clay used and degree of firing; hence, it cannot be taken as indicative of classification until after it has been
related to absorption by actual tests.
5. Physical Properties
5.1 Structural clay nonloadbearing tile tile, when tested in accordance with Test Methods C67/C67M, shall conform to the
following requirements for absorption:
A
Absorption by 1-h Boiling, %
Grade Individual Maximum
NB 28
A
The range in percentage absorption for tile delivered to any one job shall be not more than 12.
6. Dimensions and Permissible Variations
6.1 No overall dimension shall vary more than 3 % over or under the s
...