ASTM C56-12
(Specification)Standard Specification for Structural Clay Nonloadbearing Tile
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).
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 4) 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.
1.6 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.
1.7 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.
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Designation:C56 −12
StandardSpecification 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 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). C34 Specification for Structural Clay Load-Bearing Wall
Tile
1.2 The property requirements of this specification apply at
C67 Test Methods for Sampling and Testing Brick and
the time of purchase. The use of results from testing of tile
Structural Clay Tile
extracted from masonry structures for determining confor-
C1232 Terminology of Masonry
mance or non-conformance to the property requirements (Sec-
tion4)ofthisstandardisbeyondthescopeofthisspecification.
3. Classification
1.3 Tilecoveredbythisspecificationaremanufacturedfrom
3.1 One grade of tile is covered, designated Grade NB.
clay, shale, or similar naturally occurring substances and
3.2 If tile having a particular color (Note 1), texture, or
subjected to a heat treatment at elevated temperatures (firing).
finish are desired, these features shall be specified separately
The heat treatment must develop sufficient fired bond between
by the purchaser.
the particulate constituents to provide the strength and dura-
bility requirements of this specification. (See firing and fired
NOTE 1—Color of tile varies with the type of clay used and degree of
bond in Terminology C1232.) firing; hence, it cannot be taken as indicative of classification until after it
has been related to absorption by actual tests.
1.4 Fireproofing tile intended for use in load-bearing ma-
sonry shall conform to Specification C34.
4. Physical Properties
1.5 Tile intended for use in fireproofing structural members
4.1 Structural clay nonloadbearing tile shall conform to the
shall be of such sizes and shapes that they can be erected to
following requirements for absorption:
cover completely the exposed surfaces of the members.
A
Absorption by 1-h Boiling, %
Grade Individual Maximum
1.6 The text of this specification references notes and
NB 28
footnotes that provide explanatory material. These notes and
footnotes (excluding those in tables and figures) shall not be
A
The range in percentage absorption for tile delivered to any one job shall be not
considered as requirements of this specification.
more than 12.
1.7 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical 5. Dimensions and Permissible Variations
conversions to SI units that are provided for information only
5.1 No overall dimension shall vary more than 3 % over or
and are not considered standard.
under the specified dimension for any form or size of tile. See
Note 2.
NOTE 2—Purchasers and designers should ascertain the type and size of
tile, modular or non-modular, available in the locality under consideration
and should specify accordingly, stating the size and type represented by
the available tile.
Modular sizes are designated by the specified nominal dimensions
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
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, 2012. Published January 2013. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1924. Last previous edition approved in 2010 as C56 – 10. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/C0056-12. 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
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C56−12
modular, specified, or nominal dimensions of a unit are 4 by 8 by 12 in.
number of cells in the direction of wall thickness, and weight
1
(102 by 203 by 305 mm) the actual manufactured dimensions may be 3 ⁄2
per unit area.
1 1
by 7 ⁄2 by 11 ⁄2 in. (114.7 by 215.7 by 317.7 mm).
7.2 The requirements for minimum weight per unit area of
6. Finish and Appearance structural clay nonloadbearing tile shall be waived if the
overall
...
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 − 10 C56 − 12
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 Department of Defense.
1. Scope*
1.1 This specification covers structural clay nonloadbearing tile (partition, fireproofing, and furring). One grade of tile is
covered, designated Grade NB.
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 34) 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 If tile having a particular color (Tile intended for use in fireproofing structuralNote 1), texture, or finish are desired, these
features shall be specified separately by the purchaser. members shall be of such sizes and shapes that they can be erected to cover
completely the exposed
NOTE 1—Color of tile varies with the type of clay used and degree of burning; hence, it cannot be taken as indicative of classification until after it
has been related to absorption by actual tests. surfaces of the members.
1.6 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.
1.7 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
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 June 1, 2010Dec. 1, 2012. Published June 2010January 2013. Originally approved in 1924. Last previous edition approved in 20092010 as
C56 – 09.C56 – 10. DOI: 10.1520/C0056-10.10.1520/C0056-12.
*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 ----------------------
C56 − 12
2. Referenced Documents
2
2.1 ASTM Standards:
C34 Specification for Structural Clay Load-Bearing Wall Tile
C67 Test Methods for Sampling and Testing Brick and Structural Clay Tile
C1232 Terminology of Masonry
3. Classification
3.1 One grade of tile is covered, designated Grade NB.
3.2 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.
4. Absorption Physical Properties
4.1 Structural clay non-load-bearingnonloadbearing tile 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.
4. Number of Cells and Weights
4.1 Partition and split furring tile shall conform to the requirements prescribed in Table 1 for total number of cells, number of
cells in the direction of wall thickness, and weight per unit area.
4.2 The requirements for minimum weight per unit area of structural clay nonloadbearing tile shall be waived if the overall
5
thickness of the shells, measured between the inner and extreme outer surfaces of scored tile, is not less than ⁄8 in. (15.9 mm) and
1 1
the mean shell thickness of un
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