ASTM C479-95
(Specification)Standard Specification for Vitrified Clay Liner Plates
Standard Specification for Vitrified Clay Liner Plates
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)
NOTICE: This standard has either been superseded and replaced by a new version or
withdrawn. Contact ASTM International (www.astm.org) for the latest information.
Designation: C 479 – 95
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Specification for
1
Vitrified Clay Liner Plates
This standard is issued under the fixed designation C 479; 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.
1. Scope 7.1.1 Liner plates shall have either three or five longitudinal,
monolithic, dovetail tenon ribs uniformly and symmetrically
1.1 This specification establishes the criteria for the accep-
spaced on the back of the plate (Note). When five tenon ribs are
tance of vitrified clay liner plates used to protectively line or
used, the outer fin of the exterior tenons shall be eliminated so
face pipe, culverts, abutments, structures, or appurtenances.
that parallel jointing faces between abutting plates may be
1.2 The values stated in inch-pound units are to be regarded
achieved.
as the standard. The values given in parentheses are for
information only.
NOTE 1—Special liner plates are available for linings where tenon ribs
are not desired. They are furnished in the same thickness, length, and
2. Referenced Documents
width as standard liner plates.
2.1 ASTM Standards:
7.1.2 Tenon ribs shall be of trapezoidal cross section to
2
C 43 Terminology Relating to Structrual Clay Products
firmly key or attach the plate into the backup material with a
2
C 301 Test Methods for Vitrified Clay Pipe
mortising type of fastening. The ratio of the dimension of the
larger base to the smaller base shall be about 8 to 5, with the
3. Terminology
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smaller base dimension to be ⁄8 6 ⁄8 in. (16 6 3 mm). The
3.1 Definitions:—Clay, fire clay, shale, and surface clay are
smaller base of the trapezoid shall be adjacent to the liner plate.
defined in Terminology C 43.
7.2 Length:
4. Classification
7.2.1 Length is the overall dimension of the liner plate when
measured in the same direction as the tenon ribs.
4.1 Liner plates manufactured in accordance with this speci-
7.2.2 Liner plates shall be available in standard lengths of 6
fication shall be known as curved liner plates or flat liner
in. (152 mm), 9 in. (229 mm), 12 in. (305 mm), 18 in. (457
plates.
1
mm), or 24 in. (610 mm), with a tolerance of + 0, − ⁄4 in./ft of
5. Materials and Manufacture
length ( + 0, − 21 mm/m of length).
5.1 Liner plates shall be manufactured from fire clay, shale, 7.3 Width:
1 1
surface clay, or a combination of these materials that, when 7.3.1 The width of curved liner plates shall be 9 ⁄4 6 ⁄8 in.
formed into liner plates and fired to suitable temperatures, yield (2356 3 mm) measured along the radial arc.
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a product that is strong, durable, serviceable, free of objection- 7.3.2 The width of flat liner plates shall be 9 6 ⁄8 in. (229
able defects, and conform to this specification. 6 3 mm).
7.4 Thickness—Liner plates, both flat and curved, shall be
6. Physical and Chemical Requirements
3 1 1
⁄4 6 ⁄16 in. (19 6 1 mm) thick. Tenon ribs shall be ⁄2 in. 6
6.1 Absorption—The absorption of liner plates shall not 1
⁄16 in. (13 6 1 mm) thick, which provides an overall thickness,
1 1
exceed 6 %.
at the tenon rib, of 1 ⁄4 6 ⁄8 in. (32 6 3 mm).
6.2 Acid Resistance:
7.5 Design—Liner plates are designed to be used in the
6.2.1 This test is used to determine the resistance of liner
numbers and with radii corresponding to inside diameters as
plates to the action of acids. The test shall be performed only
designated in Table 1.
when specified.
6.2.2 Liner plates shall be acceptable if the acid-soluble
8. Workmanship, Finish, and Appearance
matter does not exceed 0.25 %.
8.1 Liner plates shall be uniformly vitrified throughout their
thickness and have a homogeneous structural texture. They
7. Dimensions and Permissible Variations
1 3
shall be free of chips that are more than ⁄4by ⁄4 in. (6 by 19
7.1 Tenon Ribs:
11
mm) in surface dimension or that have a depth greater than ⁄64
in. (4 mm). They shall be free of well-defined cracks and shall
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This specification is under the jurisdiction of ASTM Committee C-4 Vitrified
have no blister with a dimension exceeding ⁄2 in. (13 mm) and
Clay Pipe C04-20Methods of Test and Specifications
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no blister shall project more than ⁄8 in.(3 mm) above the
Current edition approved Oct. 10, 1995. Published December 1995. Originally
e1
surface of the liner plate. The edges shall be straight and the
published as C 479 – 61 T. Last previous edition C 479 – 77 (1993) .
2
Annual Book of ASTM Standards, Vol 04.05. corners square to a degree that will permit smooth and
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