ASTM C923M-08a

Standard Specification for Resilient Connectors Between Reinforced Concrete Manhole Structures, Pipes, and Laterals (Metric)

ABSTRACT
This specification covers resilient connectors between reinforced concrete manhole structures, pipes, and laterals. Resilient materials for connectors and filler rings shall be manufactured from natural or synthetic rubber and shall conform to the prescribed requirements. Mechanical devices shall be made from a material or materials in combination that will ensure durability, strength, resistance to corrosion, and have properties that will ensure continued resistance to leakage. The design of pipe connectors and pipe stubs are specified. The physical properties and chemical composition shall conform to the required tests for chemical resistance, tensile strength, elongation at break, hardness, accelerated oven-aging, compression set, water absorption, ozone resistance, low-temperature brittle point, and tear resistance.
SCOPE
1.1 This specification covers the minimum performance and material requirements for resilient connectors used for connections between precast reinforced concrete manholes conforming to Specification C 478 and pipes, and between precast reinforced concrete pipe and laterals.
1.1.1 These connectors are designed to minimize leakage between the pipe and manhole, and between the pipe and lateral.
1.2 This specification is the SI companion to Specification C 923.
Note 1—This specification covers the design, material, and performance of the resilient connection only. Connections covered by this specification are adequate for hydrostatic pressures up to 70 kPa (7.1 m) without leakage when tested in accordance with Section 7. Infiltration or exfiltration quantities for an installed system are dependent upon many factors other than the connections between manhole structures and pipe, and allowable quantities must be covered by other specifications and suitable testing of the installed pipeline and system.  
1.3 The following precautionary caveat pertains only to the test methods portion, Section 7, of this specification: 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. For a specific precaution statement, see 7.2.5.

General Information

• Status: Historical
• Publication Date: 30-Jun-2008
• ICS: 93.030 - External sewage systems
• Technical Committee: C13 - Concrete Pipe
• Drafting Committee: C13.06 - Manholes and Specials

Relations

• Replaces: ASTM C923M-08 - Standard Specification for Resilient Connectors Between Reinforced Concrete Manhole Structures, Pipes, and Laterals (Metric)
• Effective Date: 01-Jul-2008
• Replaced By: ASTM C923M-08b - Standard Specification for Resilient Connectors Between Reinforced Concrete Manhole Structures, Pipes, and Laterals (Metric)
• Effective Date: 01-Oct-2008

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 923M – 08a
Standard Specification for
Resilient Connectors Between Reinforced Concrete Manhole
1
Structures, Pipes, and Laterals (Metric)
This standard is issued under the fixed designation C 923M; 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.
1. Scope A 493 Specification for Stainless Steel Wire and Wire Rods
for Cold Heading and Cold Forging
1.1 This specification covers the minimum performance and
A 666 Specification for Annealed or Cold-Worked Austen-
material requirements for resilient connectors used for connec-
itic Stainless Steel Sheet, Strip, Plate, and Flat Bar
tions between precast reinforced concrete manholes conform-
C 478 Specification for Precast Reinforced Concrete Man-
ing to Specification C 478 and pipes, and between precast
hole Sections
reinforced concrete pipe and laterals.
C 822 Terminology Relating to Concrete Pipe and Related
1.1.1 These connectors are designed to minimize leakage
Products
between the pipe and manhole, and between the pipe and
C 913 Specification for Precast Concrete Water and Waste-
lateral.
water Structures
1.2 This specification is the SI companion to Specification
D 395 Test Methods for Rubber Property—Compression
C 923.
Set
NOTE 1—This specification covers the design, material, and perfor-
D 412 Test Methods for Vulcanized Rubber and Thermo-
mance of the resilient connection only. Connections covered by this
plastic Elastomers—Tension
specification are adequate for hydrostatic pressures up to 70 kPa (7.1 m)
D 471 Test Method for Rubber Property—Effect of Liquids
without leakage when tested in accordance with Section 7. Infiltration or
D 543 Practices for Evaluating the Resistance of Plastics to
exfiltration quantities for an installed system are dependent upon many
factors other than the connections between manhole structures and pipe, Chemical Reagents
and allowable quantities must be covered by other specifications and
D 573 Test Method for Rubber—Deterioration in an Air
suitable testing of the installed pipeline and system.
Oven
D 624 Test Method for Tear Strength of Conventional
1.3 The following precautionary caveat pertains only to the
Vulcanized Rubber and Thermoplastic Elastomers
test methods portion, Section 7, of this specification: This
D 883 Terminology Relating to Plastics
standard does not purport to address all of the safety concerns,
D 1149 Test Methods for Rubber Deterioration—Cracking
if any, associated with its use. It is the responsibility of the user
in an Ozone Controlled Environment
of this standard to establish appropriate safety and health
D 1566 Terminology Relating to Rubber
practices and determine the applicability of regulatory limita-
D 2137 Test Methods for Rubber Property—Brittleness
tions prior to use. For a specific precaution statement, see
Point of Flexible Polymers and Coated Fabrics
7.2.5.
D 2240 Test Method for Rubber Property—Durometer
2. Referenced Documents
Hardness
2
2.1 ASTM Standards:
NOTE 2—For more information about wastewater structures, see Speci-
fication C 913.
1
This specification is under the jurisdiction of ASTM Committee C13 on 3. Terminology
Concrete Pipe and is the direct responsibility of Subcommittee C13.06 on Manholes
3.1 Definitions:
and Specials.
3.1.1 Terms relating to plastics and rubber shall be as
Current edition approved July 1, 2008. Published July 2008. Originally approved
in 1980. Last previous edition approved in 2008 as C 923M – 08.
defined in Terminologies D 883 and D 1566, respectively.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3.1.2 Terms relating to precast concrete pipe, manholes, and
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
related products shall be as defined in Terminology C 822 and
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. as modified in 3.1.3-3.1.6.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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C 923M – 08a
3.1.3 connector—the entire assembly including resilient resilient material between the outside surface of the pipe and
seals and metallic or nonmetallic mechanical devices, if any, the pipe opening in the wall of the manhole or wastewater
used therein. structure,orbycastingtheconnectorintegrallywiththewallof
3.1.4 lateral—the small diameter pipe connected to the the manhole or wastewater structure. The seal between the
main line. connector and the pipe shall be made by mechanical means or
3.1.5 pipe—the inlet or outlet pipe co
...

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:C923M–08 Designation: C 923M – 08a
Standard Specification for
Resilient Connectors Between Reinforced Concrete Manhole
1
Structures, Pipes, and Laterals (Metric)
This standard is issued under the fixed designation C 923M; 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.
1. Scope
1.1 This specification covers the minimum performance and material requirements for resilient connectors used for connections
between precast reinforced concrete manholes conforming to Specification C 478 and pipes, and between precast reinforced
concrete pipe and laterals.
1.1.1 These connectors are designed to minimize leakage between the pipe and manhole, and between the pipe and lateral.
1.2This specification is the metric counterpart of Specification C923.
1.2 This specification is the SI companion to Specification C 923.
NOTE 1—This specification covers the design, material, and performance of the resilient connection only. Connections covered by this specification
are adequate for hydrostatic pressures up to 70 kPa (7.1 m) without leakage when tested in accordance with Section 7. Infiltration or exfiltration quantities
for an installed system are dependent upon many factors other than the connections between manhole structures and pipe, and allowable quantities must
be covered by other specifications and suitable testing of the installed pipeline and system.
1.3 The following precautionary caveat pertains only to the test methods portion, Section 7, of this specification: 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.
For a specific precaution statement, see 7.2.5.
2. Referenced Documents
2
2.1 ASTM Standards:
A 493 Specification for Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging
A 666 Specification for Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar
C 478 Specification for Precast Reinforced Concrete Manhole Sections
C 822 Terminology Relating to Concrete Pipe and Related Products
C 913 Specification for Precast Concrete Water and Wastewater Structures
D 395 Test Methods for Rubber PropertyCompression Set
D 412 Test Methods for Vulcanized Rubber and Thermoplastic ElastomersTension
D 471 Test Method for Rubber PropertyEffect of Liquids
D 543 Practices for Evaluating the Resistance of Plastics to Chemical Reagents
D 573 Test Method for RubberDeterioration in an Air Oven
D 624 Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic Elastomers
D 883 Terminology Relating to Plastics
D 1149 Test Methods for Rubber DeteriorationCracking in an Ozone Controlled Environment
D 1566 Terminology Relating to Rubber
D 2137 Test Methods for Rubber PropertyBrittleness Point of Flexible Polymers and Coated Fabrics
D 2240 Test Method for Rubber PropertyDurometer Hardness
NOTE 2—For more information about wastewater structures, see Specification C 913.
3. Terminology
3.1 Definitions:
3.1.1 Terms relating to plastics and rubber shall be as defined in Terminologies D 883 and D 1566, respectively.
1
ThisspecificationisunderthejurisdictionofASTMCommitteeC13onConcretePipeandisthedirectresponsibilityofSubcommitteeC13.06onManholesandSpecials.
Current edition approved MarchJuly 1, 2008. Published AprilJuly 2008. Originally approved in 1980. Last previous edition approved in 20072008 as C 923M – 078.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
C 923M – 08a
3.1.2 Terms relating to precast concrete pipe, manholes, and related products shall be as defined in Terminology C 822 and as
modified in 3.1.3-3.1.6.
3.1.3 connector—the entire assembly including resilient seals and metallic or nonmetallic mechanical devices, if any, used
therein.
3.1.4 lateral—the small diameter pipe connected to the main line.
3.
...