Standard Specification for Clay Flue Linings

SCOPE
1.1 This specification establishes the criteria for acceptance, prior to installation, of clay flue liners used for conveying hot gases in masonry chimneys.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 For installation of clay flue liners, see Practice C 1283.

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Publication Date
09-Jan-2002
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ASTM C315-00 - Standard Specification for Clay Flue Linings
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NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: C 315 – 00
Standard Specification for
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Clay Flue Linings
This standard is issued under the fixed designation C 315; 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 (e) 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 side. All rough edges shall be ground off and loose particles
removed.
1.1 This specification establishes the criteria for acceptance,
6.1.3 If any of the test specimens fail to meet the require-
prior to installation, of clay flue linings used for conveying hot
ments, the manufacturer shall be allowed to retest on two
gases in masonry chimneys.
additional specimens for each one that failed. The flues will be
1.2 The values stated in inch-pound units are to be regarded
acceptable if all the subsequent specimens for retest meet the
as the standard. The values given in parentheses are for
requirements.
information only.
6.2 Acid Resistance:
2. Referenced Documents
6.2.1 This is a test used to determine the resistance of clay
flue liners to the action of acids encountered in chimneys. This
2.1 ASTM Standards:
test shall be performed only when specified.
C 67 Test Methods for Sampling and Testing Brick and
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6.2.2 The flue liner shall be acceptable if the acid soluble
Structural Clay Tile
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material does not exceed 0.25 % when tested in accordance
C 301 Test Methods for Vitrified Clay Pipe
2
with Test Methods C 301.
C 896 Terminology Relating to Clay Products
6.2.3 Test Specimens— Select one test specimen from each
3. Terminology
size of flue liner. The specimens shall measure about 2 in. (50
mm) by 2 in. (50 mm) per side and weigh not more than 200
3.1 Definitions—Clay, fire clay, shale, and surface clay are
g. They shall be sound pieces with all edges freshly broken,
as defined in Terminology C 896.
free of cracks or shattered edges, and shall be thoroughly
4. Classification
cleaned.
6.3 Freeze-Thaw Cycle Test:
4.1 Types—Flue linings acceptable under this specification
6.3.1 When flue liners are tested in accordance with Test
shall be designated as rectangular nonmodular, rectangular
Methods C 67, Section 8 on structural clay tile, there shall be
modular, round or oval.
no breakage and the percentage of weight loss shall not exceed
5. Materials and Manufacture
0.5 %.
6.3.2 Test Specimens— Five dry test specimens shall be
5.1 Flue linings shall be manufactured from fire clay, shale,
obtained from the five flue liners to be tested and shall measure
surface clay, or a combination of these materials that when
as closely as possible to 4 in. (100 mm) by 4 in. (100 mm) per
formed and fired to suitable temperatures, shall yield a product
side. All rough edges shall be ground off and loose particles
that is strong, durable, serviceable, and conforms to this
removed.
specification.
7. Sizes and Dimensions
6. Physical and Chemical Requirements
7.1 Flue linings shall be specified and furnished in the
6.1 Absorption:
dimensions prescribed in Tables 1-4.
6.1.1 The absorption of clay flue linings shall not exceed
7.2 Variations in dimensions in Tables 1-4 shall not exceed
8.0 % when tested in accordance with Test Methods C 301.
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6 ⁄2 in. (613 mm) for outside dimensions. Permissible wall
6.1.2 Test Specimens— Five dry test specimens shall be
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thickness variation is 6 ⁄8 in. (63 mm) for all flue liners,
obtained from the five flue liners to be tested and shall measure
except that there shall be no limit for plus variation in round
as closely as possible to 4 in. (100 mm) by 4 in. (100 mm) per
flue linings. Variations in dimensions of round flue lining shall
not exceed those shown in Table 3. The maximum difference in
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This specification is under the jurisdiction of ASTM Committee C-4 on
the diagonal dimensions of rectangular modular flue lining
Vitrified Clay Pipe and is the direct responsibility of Subcommittee C04.20 on
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Methods of Test and Specifications. shall not exceed ⁄2in. (13 mm) for sizes up to and including 12
Current edition approved Jan. 10, 2000. Published March 2000. Originally 3
in. (305 mm) by 12 in. (305 mm) and ⁄4 in. (19 mm) for larger
published as C 315–53. Last previous edition C 315–98b.
sizes.
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Annual Book of ASTM Standards, Vol 04.05.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
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C 315
TABLE 1 Rectangular Nonmodular Clay Flue Linings—Standard TABLE 3 Round Clay Flue Linings—Standard Dimensions
Dimensions
Permissible Variation Nominal Wall
Nominal Inside Diameter,
in Inside Diameter, Thickness,
Nominal Wall Outside Corner
in. (mm)
6 in. 6 (mm) in.
...

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