ASTM C12-03

Standard Practice for Installing Vitrified Clay Pipe Lines

SCOPE
1.1 This practice covers the proper methods of installing vitrified clay pipe lines in order to fully utilize the structural properties of such pipe.
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 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 09-Feb-2003
• ICS: 23.040.01 - Pipeline components and pipelines in general
• Technical Committee: C04 - Vitrified Clay Pipe
• Drafting Committee: C04.20 - Methods of Test and Specifications

Relations

• Replaces: ASTM C12-02 - Standard Practice for Installing Vitrified Clay Pipe Lines
• Effective Date: 10-Feb-2003
• Replaced By: ASTM C12-04e1 - Standard Practice for Installing Vitrified Clay Pipe Lines
• Effective Date: 01-Sep-2004
• Referred By: ASTM C425-22 - Standard Specification for Compression Joints for Vitrified Clay Pipe and Fittings
• Effective Date: 10-Feb-2003
• Referred By: ASTM C301-18(2022) - Standard Test Methods for Vitrified Clay Pipe
• Effective Date: 10-Feb-2003
• Referred By: ASTM C1091-03a(2022) - Standard Test Method for Hydrostatic Infiltration Testing of Vitrified Clay Pipe Lines
• Effective Date: 10-Feb-2003
• Referred By: ASTM C828-23 - Standard Test Method for Low-Pressure Air Test of Vitrified Clay Pipe Lines
• Effective Date: 10-Feb-2003

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 12 – 03
Standard Practice for
1
Installing Vitrified Clay Pipe Lines
This standard is issued under the fixed designation C 12; 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 support dead and live loads under actual field conditions. It is
dependent upon two factors: (1) the inherent strength of the
1.1 This practice covers the proper methods of installing
pipe and (2) the bedding of the pipe.
vitrified clay pipe lines in order to fully utilize the structural
4.2 The minimum bearing strength requirement in accor-
properties of such pipe.
dance with Specification C 700, as determined by the 3-edge-
1.2 The values stated in inch-pound units are to be regarded
bearing test of Test Methods C 301, is a measure of the
as the standard. The values given in parentheses are for
inherent strength of the pipe.
information only.
4.3 The tests used to measure bearing strength determine
1.3 This standard does not purport to address all of the
relative pipe strengths but do not represent actual field condi-
safety concerns, if any, associated with its use. It is the
tions. Therefore, an adjustment called a load factor is intro-
responsibility of the user of this standard to establish appro-
duced to convert minimum bearing strength to field supporting
priate safety and health practices and determine the applica-
strength. The magnitude of the load factor depends on how the
bility of regulatory limitations prior to use.
pipe is bedded. The relationship is:
2. Referenced Documents
Field supporting strength 5 minimum bearing strength 3 load factor
2.1 ASTM Standards:
4.4 A factor of safety greater than 1.0 and less than or equal
2
C 301 Test Methods for Vitrified Clay Pipe
to 1.5 shall be applied to the field supporting strength to
C 425 Specification for Compression Joints for Vitrified
calculate a safe supporting strength. The relationship is:
2
Clay Pipe and Fittings
Field supporting strength
C 700 Specification for Vitrified Clay Pipe, Extra Strength,
Safe supporting strength 5
Factor of safety
2
Standard Strength, and Perforated
C 828 Test Method for Low-Pressure Air Test of Vitrified
5. External Loads
2
Clay Pipe Lines
5.1 The external loads on installed vitrified clay pipe are of
2
C 896 Terminology Relating to Clay Products
two general types: (1) dead loads and (2) live loads.
C 1091 Test Method for Hydrostatic Infiltration and Exfil-
5.2 For pipes installed in trenches at a given depth, the dead
2
tration Testing of Vitrified Clay Pipe Lines
load increases as the trench width, measured at the top of the
pipe, increases. Consequently, the trench width at the top of the
3. Terminology
pipe shall be kept as narrow as possible. Pipe failure may result
3.1 General—Terminology C 896 can be used for clarifica-
if the design trench width is exceeded. If the trench width
tion of terminology in this specification.
exceeds the design width, a higher class of bedding, stronger
pipe, or both, must be investigated.
DESIGN CONSIDERATIONS
5.3 Live loads that act at the ground surface are partially
4. Supporting Strength
transmitted to the pipe. Live loads may be produced by wheel
loading, construction equipment or by compactive effort.
4.1 The field supporting strength of vitrified clay pipe is
Compaction of embedment and backfill materials, beside and
materially affected by the methods of installation. The field
above the sewer pipe, produces a temporary live load on the
supporting strength of a pipe is defined as its capacity to
pipe. The magnitude of the live load from compactive effort
varies with soil type, degree of saturation, degree of compac-
1
This practice is under the jurisdiction of ASTM Committee C04 on Vitrified
tion and depth of cover over the pipe. Care must be used in
Clay Pipe and is the direct responsibility of Subcommittee C04.20 on Methods of
selection of compaction methods so that the combined dead
Test and Specifications.
load and live load does not exceed the field supporting strength
Current edition approved February 10, 2003. Published June 2003. Originally
approved in 1915. Last previous edition approved in 2001 as C 12–01.
of the pipe, or cause a change in its line or grade.
2
Annual Book of ASTM Standards, Vol 04.05.
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C12–03
6.2 Class D (Fig. 2)—The pipe shall be placed on a firm and
unyielding trench bottom with bell holes provided (Fig. 9). Th
...