ASTM C479-04
(Specification)Standard Specification for Vitrified Clay Liner Plates
Standard Specification for Vitrified Clay Liner Plates
ABSTRACT
This specification establishes the criteria for the acceptance of vitrified clay liner plates used to protectively line or face pipe, culverts, abutments, structures, or appurtenances. Linear plates manufactured shall be known as curved linear plates or flat liner plates. These plates shall be manufactured from fire clay, shale, surface clay, or a combination of these materials that, when formed into liner plates and fired to suitable temperatures, yield a product that is strong, durable, serviceable, and free of objectionable defects. The absorption of liner plates shall not exceed 6%. The liner plates shall be subjected to acid resistance test. These liner plates shall be uniformly vitrified throughout their thickness and have a homogeneous structural texture.
SCOPE
1.1 This specification establishes the criteria for the acceptance of vitrified clay liner plates used to protectively line or face pipe, culverts, abutments, structures, or appurtenances.
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.
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Standards Content (Sample)
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Designation: C 479 – 04
Standard Specification for
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Vitrified Clay Liner Plates
This standard is issued under the fixed designation C479; 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.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope 6.2.1 This test is used to determine the resistance of liner
plates to the action of acids. The test shall be performed only
1.1 This specification establishes the criteria for the accep-
when specified.
tance of vitrified clay liner plates used to protectively line or
6.2.2 Liner plates shall be acceptable if the acid-soluble
face pipe, culverts, abutments, structures, or appurtenances.
matter does not exceed 0.25%.
1.2 The values stated in inch-pound units are to be regarded
as the standard. The values given in parentheses are for
7. Dimensions and Permissible Variations
information only.
7.1 Tenon Ribs:
2. Referenced Documents 7.1.1 Linerplatesshallhaveeitherthreeorfivelongitudinal,
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monolithic, dovetail tenon ribs uniformly and symmetrically
2.1 ASTM Standards:
spaced on the back of the plate (see Note 1). When five tenon
C43 Terminology of Structural Clay Products
ribs are used, the outer fin of the exterior tenons shall be
C301 Test Methods for Vitrified Clay Pipe
eliminated so that parallel jointing faces between abutting
3. Terminology
plates may be achieved.
3.1 Definitions:—Clay, fire clay, shale, and surface clay are
NOTE 1—Special liner plates are available for linings where tenon ribs
defined in Terminology C 43.
are not desired. They are furnished in the same thickness, length, and
width as standard liner plates.
4. Classification
7.1.2 Tenon ribs shall be of trapezoidal cross section to
4.1 Linerplatesmanufacturedinaccordancewiththisspeci-
firmly key or attach the plate into the backup material with a
fication shall be known as curved liner plates or flat liner
mortising type of fastening. The ratio of the dimension of the
plates.
larger base to the smaller base shall be about 8 to 5, with the
5 1
smaller base dimension to be ⁄8 6 ⁄8 in. (16 6 3.2 mm). The
5. Materials and Manufacture
smallerbaseofthetrapezoidshallbeadjacenttothelinerplate.
5.1 Liner plates shall be manufactured from fire clay, shale,
7.2 Length:
surface clay, or a combination of these materials that, when
7.2.1 Lengthistheoveralldimensionofthelinerplatewhen
formedintolinerplatesandfiredtosuitabletemperatures,yield
measured in the same direction as the tenon ribs.
a product that is strong, durable, serviceable, free of objection-
7.2.2 Liner plates shall be available in standard lengths of 6
able defects, and conform to this specification.
in. (150 mm), 9 in. (230 mm), 12 in. (305 mm), 18 in. (460
1
mm), or 24 in. (610 mm), with a tolerance of+0,− ⁄4 in./ft of
6. Physical and Chemical Requirements
length (+0,−21 mm/m of length).
6.1 Absorption—The absorption of liner plates shall not
7.3 Width:
exceed 6%.
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7.3.1 The width of curved liner plates shall be 9 ⁄4 6 ⁄8 in.
6.2 Acid Resistance:
(2356 3.2 mm) measured along the radial arc.
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7.3.2 The width of flat liner plates shall be 9 6 ⁄8 in. (230
6 3.2 mm).
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This specification is under the jurisdiction of ASTM Committee C04 on
7.4 Thickness—Liner plates, both flat and curved, shall be
Vitrified Clay Pipe and is the direct responsibility of Subcommittee C04.20 on
3 1 1
⁄4 6 ⁄16 in. (19 6 1.6 mm) thick. Tenon ribs shall be ⁄2 in. 6
Methods of Test and Specifications.
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⁄16 in. (13 6 1.6 mm) thick, which provides an overall
Current edition approved April 1, 2004. Published May 2004. Originally
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approved in 1961. Last previous edition approved in 2001 as C479–95(2001).
thickness, at the tenon rib, of 1 ⁄4 6 ⁄8 in. (32 6 3.2 mm).
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
7.5 Design—Liner plates are designed to be used in the
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
numbers and with radii corresponding to inside diameters as
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. designated in Table 1.
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C479–04
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TABLE 1 Vitrified Clay Liner Plate Dimensions
shall have no blister with a dimension exceeding ⁄2 in. (13
1
mm) and no blister shall project more than ⁄8 in. (3.2 mm)
Inside Diameter of Structure Number of Liner Face Radius
above the surface of the liner plate.The edges shall be straight
in. (mm) Plates to the Circle in. (mm)
and the corners square to a degree that will permit smooth and
adequate peripheral joints.
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