ASTM C923M-08b(2013)
(Specification)Standard Specification for Resilient Connectors Between Reinforced Concrete Manhole Structures, Pipes, and Laterals (Metric)
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 C478 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 C923.
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
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:C923M −08b (Reapproved 2013)
Standard Specification for
Resilient Connectors Between Reinforced Concrete Manhole
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Structures, Pipes, and Laterals (Metric)
This standard is issued under the fixed designation C923M; 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 Stainless Steel Sheet, Strip, Plate, and Flat Bar
C478 Specification for Circular Precast Reinforced Concrete
1.1 This specification covers the minimum performance and
Manhole Sections
material requirements for resilient connectors used for connec-
C822 Terminology Relating to Concrete Pipe and Related
tions between precast reinforced concrete manholes conform-
Products
ing to Specification C478 and pipes, and between precast
C913 Specification for Precast Concrete Water and Waste-
reinforced concrete pipe and laterals.
water Structures
1.1.1 These connectors are designed to minimize leakage
D395 Test Methods for Rubber Property—Compression Set
between the pipe and manhole, and between the pipe and
D412 Test Methods for Vulcanized Rubber and Thermoplas-
lateral.
tic Elastomers—Tension
1.2 This specification is the SI companion to Specification
D471 Test Method for Rubber Property—Effect of Liquids
C923.
D543 Practices for Evaluating the Resistance of Plastics to
Chemical Reagents
NOTE 1—This specification covers the design, material, and perfor-
mance of the resilient connection only. Connections covered by this D573 Test Method for Rubber—Deterioration in an Air
specification are adequate for hydrostatic pressures up to 70 kPa (7.1 m)
Oven
without leakage when tested in accordance with Section 7. Infiltration or
D624 Test Method for Tear Strength of Conventional Vul-
exfiltration quantities for an installed system are dependent upon many
canized Rubber and Thermoplastic Elastomers
factors other than the connections between manhole structures and pipe,
D883 Terminology Relating to Plastics
and allowable quantities must be covered by other specifications and
suitable testing of the installed pipeline and system.
D1149 Test Methods for Rubber Deterioration—Cracking in
an Ozone Controlled Environment
1.3 The following precautionary caveat pertains only to the
D1566 Terminology Relating to Rubber
test methods portion, Section 7, of this specification: This
D2137 Test Methods for Rubber Property—Brittleness Point
standard does not purport to address all of the safety concerns,
of Flexible Polymers and Coated Fabrics
if any, associated with its use. It is the responsibility of the user
D2240 Test Method for Rubber Property—Durometer Hard-
of this standard to establish appropriate safety and health
ness
practices and determine the applicability of regulatory limita-
tions prior to use. For a specific precaution statement, see
NOTE 2—For more information about wastewater structures, see Speci-
7.2.5.
fication C913.
2. Referenced Documents
3. Terminology
2
2.1 ASTM Standards:
3.1 Definitions:
A493 Specification for Stainless Steel Wire and Wire Rods
3.1.1 Terms relating to plastics and rubber shall be as
for Cold Heading and Cold Forging
defined in Terminologies D883 and D1566, respectively.
A666 Specification forAnnealed or Cold-WorkedAustenitic
3.1.2 Terms relating to precast concrete pipe, manholes, and
related products shall be as defined in Terminology C822 and
as modified in 3.1.3 – 3.1.6.
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This specification is under the jurisdiction of ASTM Committee C13 on
3.1.3 connector—the entire assembly including resilient
Concrete Pipe and is the direct responsibility of Subcommittee C13.06 on Manholes
and Specials. seals and metallic or nonmetallic mechanical devices, if any,
Current edition approved July 1, 2013. Published July 2013. Originally approved
used therein.
in 1980. Last previous edition approved in 2008 as C923M – 08b. DOI: 10.1520/
3.1.4 lateral—the small diameter pipe connected to the
C0923M-08BR13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
main line.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3.1.5 pipe—the inlet or outlet pipe connected to the man-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. hole.
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C923M−08b (2013)
3.1.6 pipe stub—a capped or plugged pipe, or section of the pipe. Resilient filler rings are not prohibited from being
pipe, installed in a manhole to allow for future connections. used between the pipe and the connector to provide a seal
...
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