ASTM C443-21

Standard Specification for Joints for Concrete Pipe and Manholes, Using Rubber Gaskets

ABSTRACT
This specification covers flexible watertight joints for concrete pipe and precast manhole sections, using rubber gaskets for sealing the joints, where infiltration or exfiltration is a factor in the design. The numerical values in this specification are not presented in inch-pound units, but rather, in metric or SI units only. All rubber gaskets shall meet the dimensions, tolerances, and physical requirements of both standard gasket and oil resistant gasket requirements. Assembled joints should pass the following performance test without leakage at the joints: pipes in straight alignment, and pipes in maximum deflected position.
SCOPE
1.1 This specification covers flexible leak-resistant joints for concrete pipe and precast manhole sections, using rubber gaskets for sealing the joints, where infiltration or exfiltration is a factor in the design. The specification covers the design of joints and the requirements for rubber gaskets to be used therewith, for pipe conforming in all other respects to Specification C14, Specification C76, or Specification C507 and precast manhole section conforming in all other respects to Specification C478/C478M, provided that if there is conflict in permissible variations in dimensions the requirements of this specification for joints shall govern.  
1.2 A complete metric companion to Specification C443 has been developed—C443M; therefore, no metric equivalents are presented in this specification.  
Note 1: This specification covers the design and performance of the rubber gasket joint only. Joints covered by this specification are adequate for hydrostatic pressures up to 13 psi (30 ft), when tested in accordance with Section 9. Infiltration or exfiltration quantities for an installed pipeline are dependent upon many factors other than the joints, and allowable quantities must be covered by other specifications and suitable testing of the installed pipeline and system.  
1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 30-Sep-2021
• ICS: 13.060.30 - Sewage water
• Technical Committee: C13 - Concrete Pipe
• Drafting Committee: C13.08 - Joints for Precast Concrete Structures

Relations

• Refers: ASTM C14-20 - Standard Specification for Nonreinforced Concrete Sewer, Storm Drain, and Culvert Pipe
• Effective Date: 01-May-2020

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:C443 −21
Standard Specification for
Joints for Concrete Pipe and Manholes, Using Rubber
1
Gaskets
This standard is issued under the fixed designation C443; 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 U.S. Department of Defense.
1. Scope 2. Referenced Documents
2
1.1 Thisspecificationcoversflexibleleak-resistantjointsfor
2.1 ASTM Standards:
concrete pipe and precast manhole sections, using rubber
C14 Specification for Nonreinforced Concrete Sewer, Storm
gasketsforsealingthejoints,whereinfiltrationorexfiltrationis
Drain, and Culvert Pipe
a factor in the design. The specification covers the design of
C76 Specification for Reinforced Concrete Culvert, Storm
joints and the requirements for rubber gaskets to be used
Drain, and Sewer Pipe
therewith, for pipe conforming in all other respects to Speci-
C478/C478M Specification for Circular Precast Reinforced
fication C14, Specification C76, or Specification C507 and
Concrete Manhole Sections
precast manhole section conforming in all other respects to
C507 Specification for Reinforced Concrete Elliptical
Specification C478/C478M, provided that if there is conflict in
Culvert, Storm Drain, and Sewer Pipe
permissible variations in dimensions the requirements of this
C822 Terminology Relating to Concrete Pipe and Related
specification for joints shall govern.
Products
1.2 Acomplete metric companion to Specification C443 has
C1619 Specification for Elastomeric Seals for Joining Con-
been developed—C443M; therefore, no metric equivalents are
crete Structures
presented in this specification.
3. Terminology
NOTE 1—This specification covers the design and performance of the
rubber gasket joint only. Joints covered by this specification are adequate
3.1 Definitions—Fordefinitionsoftermsrelatingtoconcrete
for hydrostatic pressures up to 13 psi (30 ft), when tested in accordance
pipe, see Terminology C822.
with Section 9. Infiltration or exfiltration quantities for an installed
pipeline are dependent upon many factors other than the joints, and
allowable quantities must be covered by other specifications and suitable
4. Basis of Acceptance
testing of the installed pipeline and system.
4.1 The acceptability of the pipe or manhole joints and
1.3 This international standard was developed in accor-
gaskets shall be determined by the results of the physical tests
dance with internationally recognized principles on standard-
prescribed in this specification, if and when required, and by
ization established in the Decision on Principles for the
inspection to determine whether the pipe joints and gaskets
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical conform to this specification as to design and freedom from
defects.
Barriers to Trade (TBT) Committee.
5. Materials and Manufacture for Gaskets
5.1 All rubber gaskets shall comply with Specification
C1619 in terms of materials and manufacture. The gaskets
shall be extruded or molded to the specified size within a
tolerance of 63 % on any dimension, measured at any cross
section.
1
This specification is under the jurisdiction of ASTM Committee C13 on
Concrete Pipe and is the direct responsibility of Subcommittee C13.08 on Joints for
2
Precast Concrete Structures. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Oct. 1, 2021. Published November 2021. Originally contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
approved in 1959. Last previous edition approved in 2020 as C443 – 20. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/C0443-21. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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C443−21
6. Physical Requirements for Gaskets 7.1.9 Where the particular joint design utilizing a rubber
gasket dictates the use of a lubricant to facilitate assembly, the
6.1 Standard Gasket Requirements—All rubber gaskets
lubricant composition shall have no detrimental effect on the
shall meet the dimensions, tolerances, and physical require-
performance of the gasket and joint due to prolonged exposure.
ments of Specification C1619, Class C.
NOTE 2—Joints in an assembled position are defined as joints in the
6.2 Oil Resistant G
...

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: C443 − 20 C443 − 21
Standard Specification for
Joints for Concrete Pipe and Manholes, Using Rubber
1
Gaskets
This standard is issued under the fixed designation C443; 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 U.S. Department of Defense.
1. Scope
1.1 This specification covers flexible leak-resistant joints for concrete pipe and precast manhole sections, using rubber gaskets for
sealing the joints, where infiltration or exfiltration is a factor in the design. The specification covers the design of joints and the
requirements for rubber gaskets to be used therewith, for pipe conforming in all other respects to Specification C14, Specification
C76, or Specification C507 and precast manhole section conforming in all other respects to Specification C478C478/C478M,
provided that if there is conflict in permissible variations in dimensions the requirements of this specification for joints shall
govern.
1.2 A complete metric companion to Specification C443 has been developed—C443M; therefore, no metric equivalents are
presented in this specification.
NOTE 1—This specification covers the design and performance of the rubber gasket joint only. Joints covered by this specification are adequate for
hydrostatic pressures up to 13 psi (30 ft), when tested in accordance with Section 9. Infiltration or exfiltration quantities for an installed pipeline are
dependent upon many factors other than the joints, and allowable quantities must be covered by other specifications and suitable testing of the installed
pipeline and system.
1.3 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
1
This specification is under the jurisdiction of ASTM Committee C13 on Concrete Pipe and is the direct responsibility of Subcommittee C13.08 on Joints for Precast
Concrete Structures.
Current edition approved Feb. 1, 2020Oct. 1, 2021. Published March 2020November 2021. Originally approved in 1959. Last previous edition approved in 20192020 as
C443 – 19a.C443 – 20. DOI: 10.1520/C0443-20.10.1520/C0443-21.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C443 − 21
2. Referenced Documents
2
2.1 ASTM Standards:
C14 Specification for Nonreinforced Concrete Sewer, Storm Drain, and Culvert Pipe
C76 Specification for Reinforced Concrete Culvert, Storm Drain, and Sewer Pipe
C478C478/C478M Specification for Circular Precast Reinforced Concrete Manhole Sections (Metric) C0478_C0478M
C507 Specification for Reinforced Concrete Elliptical Culvert, Storm Drain, and Sewer Pipe
C822 Terminology Relating to Concrete Pipe and Related Products
C1619 Specification for Elastomeric Seals for Joining Concrete Structures
3. Terminology
3.1 Definitions—For definitions of terms relating to concrete pipe, see Terminology C822.
4. Basis of Acceptance
4.1 The acceptability of the pipe or manhole joints and gaskets shall be determined by the results of the physical tests prescribed
in this specification, if and when required, and by inspection to determine whether the pipe joints and gaskets conform to this
specification as to design and freedom from defects.
5. Materials and Manufacture for Gaskets
5.1 All rubber gaskets shall comply with Specification C1619 in terms of materials and manufacture. The gaskets shall be extruded
or molded to the specified size within a tolerance of 63 % on any dimension, measured at any cross section.
6. Physical Requirements for Gaskets
6.1 Standard Gasket Requirements—All rubber gaskets shall meet the dimensions, tolerances, and physical requirements of
Specification C1619, Class C.
6.2 Oil Resistant Gasket Requirements—All rubber gaskets shall meet the dimensions, tolerances, and physical requirements of
Specification C1619, Class D.
7. Design of Joints
7.1 The manufacturer shall furnish the owner with the detailed design of the joint or joints including design and durometer
hardness of the rubber gasket proposed to be furnished
...