ASTM C923-18

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

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 reinforced concrete manholes conforming to Specification C478 and pipes, between wastewater structures 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 A complete metric companion to Specification C923 has been developed—C923M; therefore, no metric equivalents are presented in this specification.  
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 13 psi (30 ft) 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.

General Information

• Status: Historical
• Publication Date: 31-Aug-2018
• ICS: 93.030 - External sewage systems
• Technical Committee: C13 - Concrete Pipe
• Drafting Committee: C13.06 - Manholes and Specials

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:C923 −18
Standard Specification for
Resilient Connectors Between Reinforced Concrete Manhole
1
Structures, Pipes, and Laterals
This standard is issued under the fixed designation C923; 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 This specification covers the minimum performance and 2.1 ASTM Standards:
material requirements for resilient connectors used for connec- A493 Specification for Stainless Steel Wire and Wire Rods
tions between reinforced concrete manholes conforming to for Cold Heading and Cold Forging
Specification C478 and pipes, between wastewater structures A666 Specification forAnnealed or Cold-WorkedAustenitic
and pipes, and between precast reinforced concrete pipe and Stainless Steel Sheet, Strip, Plate, and Flat Bar
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 Acomplete metric companion to Specification C923 has
water Structures
been developed—C923M; therefore, no metric equivalents are
D395 Test Methods for Rubber Property—Compression Set
presented in this specification.
D412 Test Methods forVulcanized Rubber andThermoplas-
NOTE 1—This specification covers the design, material, and perfor-
tic Elastomers—Tension
mance of the resilient connection only. Connections covered by this
D471 Test Method for Rubber Property—Effect of Liquids
specification are adequate for hydrostatic pressures up to 13 psi (30 ft)
D543 Practices for Evaluating the Resistance of Plastics to
without leakage when tested in accordance with Section 7. Infiltration or
Chemical Reagents
exfiltration quantities for an installed system are dependent upon many
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-
1.4 This international standard was developed in accor-
ness
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-
mendations issued by the World Trade Organization Technical
3. Terminology
Barriers to Trade (TBT) Committee.
3.1 Definitions:
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 [e-mail]. For Annual Book of ASTM
ɛ1
approved in 1979. Last previous edition approved in 2013 as C923 – 08(2013) . Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/C0923-18. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C923−18
pipes.Theowneriscautionedtorequireinspectionattheconstructionsite.
3.1.1 Terms relating to plastics and rubber shall be as
defined in Terminologies D883 and D1566, respectively.
5. Principles of Design
3.1.2 Terms relating to precast concrete pipe, ma
...

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.
´1
Designation: C923 − 08 (Reapproved 2013) C923 − 18
Standard Specification for
Resilient Connectors Between Reinforced Concrete Manhole
1
Structures, Pipes, and Laterals
This standard is issued under the fixed designation C923; 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
ε NOTE—Editorially corrected 5.3 in January 2016.
1. Scope
1.1 This specification covers the minimum performance and material requirements for resilient connectors used for connections
between reinforced concrete manholes conforming to Specification C478 and pipes, between wastewater structures 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 A complete metric companion to Specification C923 has been developed—C923M; therefore, no metric equivalents are
presented in this specification.
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 13 psi (30 ft) 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 safety, health, and healthenvironmental 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.
2. Referenced Documents
2
2.1 ASTM Standards:
A493 Specification for Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging
A666 Specification for Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar
C478 Specification for Circular Precast Reinforced Concrete Manhole Sections
C822 Terminology Relating to Concrete Pipe and Related Products
C913 Specification for Precast Concrete Water and Wastewater Structures
D395 Test Methods for Rubber Property—Compression Set
D412 Test Methods for Vulcanized Rubber and Thermoplastic Elastomers—Tension
D471 Test Method for Rubber Property—Effect of Liquids
D543 Practices for Evaluating the Resistance of Plastics to Chemical Reagents
D573 Test Method for Rubber—Deterioration in an Air Oven
D624 Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic Elastomers
D883 Terminology Relating to Plastics
D1149 Test Methods for Rubber Deterioration—Cracking in an Ozone Controlled Environment
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 and Specials.
Current edition approved July 1, 2013Sept. 1, 2018. Published July 2013October 2018. Originally approved in 1979. Last previous edition approved in 20082013 as
ɛ1
C923 – 08.C923 – 08(2013) . DOI: 10.1520/C0923-08R13E01.10.1520/C0923-18.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM 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 ----------------------
C923 − 18
D1566 Terminology Relating to Rubber
D2137 Test Methods for Rubber Property—Brittleness Point of Flexible Polymers and Coated Fabr
...