ASTM C923M-18
(Specification)Standard Specification for Resilient Connectors Between Reinforced Concrete Manhole Structures, Pipes, and Laterals (Metric) (Withdrawn 2020)
Standard Specification for Resilient Connectors Between Reinforced Concrete Manhole Structures, Pipes, and Laterals (Metric) (Withdrawn 2020)
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 90 kPa (9.1 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For a specific precaution statement, see 7.2.5.
1.4 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.
WITHDRAWN RATIONALE
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.
Formerly under the jurisdiction of Committee C13 on Concrete Pipe, this specification was withdrawn in September 2020 and combined with Specification C923 to become C923/C923M.1
General Information
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:C923M −18
Standard Specification for
Resilient Connectors Between Reinforced Concrete Manhole
1
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 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This specification covers the minimum performance and
A493 Specification for Stainless Steel Wire and Wire Rods
material requirements for resilient connectors used for connec-
for Cold Heading and Cold Forging
tions between precast reinforced concrete manholes conform-
A666 Specification forAnnealed or Cold-WorkedAustenitic
ing to Specification C478 and pipes, and between precast
Stainless Steel Sheet, Strip, Plate, and Flat Bar
reinforced concrete pipe and laterals.
C478 Specification for Circular Precast Reinforced Concrete
1.1.1 These connectors are designed to minimize leakage
Manhole Sections
between the pipe and manhole, and between the pipe and
C822 Terminology Relating to Concrete Pipe and Related
lateral.
Products
C913 Specification for Precast Concrete Water and Waste-
1.2 This specification is the SI companion to Specification
water Structures
C923.
D395 Test Methods for Rubber Property—Compression Set
D412 Test Methods forVulcanized Rubber andThermoplas-
NOTE 1—This specification covers the design, material, and perfor-
mance of the resilient connection only. Connections covered by this
tic Elastomers—Tension
specification are adequate for hydrostatic pressures up to 90 kPa (9.1 m)
D471 Test Method for Rubber Property—Effect of Liquids
without leakage when tested in accordance with Section 7. Infiltration or
D543 Practices for Evaluating the Resistance of Plastics to
exfiltration quantities for an installed system are dependent upon many
Chemical Reagents
factors other than the connections between manhole structures and pipe,
D573 Test Method for Rubber—Deterioration in an Air
and allowable quantities must be covered by other specifications and
Oven
suitable testing of the installed pipeline and system.
D624 Test Method for Tear Strength of Conventional Vul-
1.3 The following precautionary caveat pertains only to the
canized Rubber and Thermoplastic Elastomers
test methods portion, Section 7, of this specification: This
D883 Terminology Relating to Plastics
standard does not purport to address all of the safety concerns,
D1149 Test Methods for Rubber Deterioration—Cracking in
if any, associated with its use. It is the responsibility of the user
an Ozone Controlled Environment
of this standard to establish appropriate safety, health, and
D1566 Terminology Relating to Rubber
environmental practices and determine the applicability of
D2137 Test Methods for Rubber Property—Brittleness Point
regulatory limitations prior to use. For a specific precaution
of Flexible Polymers and Coated Fabrics
statement, see 7.2.5.
D2240 Test Method for Rubber Property—Durometer Hard-
ness
1.4 This international standard was developed in accor-
dance with internationally recognized principles on standard-
NOTE 2—For more information about wastewater structures, see Speci-
ization established in the Decision on Principles for the
fication C913.
Development of International Standards, Guides and Recom-
3. Terminology
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
3.1 Definitions:
3.1.1 Terms relating to plastics and rubber shall be as
defined in Terminologies D883 and D1566, respectively.
1
This specification is under the jurisdiction of ASTM Committee C13 on
Concrete Pipe and is the direct responsibility of Subcommittee C13.06 on Manholes
2
and Specials. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Sept. 1, 2018. Published October 2018. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1980. Last previous edition approved in 2013 as C923M – 08b(2013). Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/C0923M-18. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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C923M−18
pipes.Theowneriscautionedtorequireinspectionattheconstructionsite.
3.1.2 Terms relating to precast concrete pipe, manholes, and
related products shall be as defined in Terminology C822 and
5. Principles of Design
as modified in 3.1.3 – 3.1.6.
5.1 The design of the connector shall be such that positive
3.1.3 connector—the entire as
...
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