ASTM C877-21

Standard Specification for External Sealing Bands for Concrete Pipe, Manholes, and Precast Box Sections

ABSTRACT
This specification deals with the metric standard for three types of external sealing bands to be used in conjunction with concrete pipe, manholes, and precast box sections. The first type of bands shall be composed of rubber, mastic, and protective film elements, while the second type shall consist of a plastic film, reinforced, rubberized, asphalt, mastic coating with steel straps. The third type shall be composed of a backing band, an applied continuous butyl adhesive coating and an optional release element. All the elements of each type of sealing band shall have physical properties conforming with specified limits as determined through appropriate test methods herein provided.
SCOPE
1.1 This specification covers external sealing bands to be used in conjunction with concrete pipe as defined in Terminology C822 and conforming to Specifications C14, C76, C412, C478/C478M, C506, C507, C655, C985, C1417, and C1433.  
1.1.1 Type I, Rubber and Mastic Bands.  
1.1.2 Type II, Plastic Film and Mesh Reinforced Mastic Bands.  
1.1.3 Type III, Chemically-Bonded Adhesive Butyl Bands.  
1.2 This specification is the inch-pound companion to Specification C877M; therefore, no SI equivalents are presented in the specification.  
Note 1: This specification covers only the design and material of the sealing bands. Sealing bands covered by this specification are adequate, when properly installed, for external hydrostatic pressures up to 13 psi, (30 ft) without leakage. The amount of infiltration or exfiltration flow in an installed pipeline is dependent upon many factors other than the sealing bands; allowable quantities and suitable testing of the installed pipeline and system must be covered by other specifications.  
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: 14-Jan-2021
• ICS: 91.100.50 - Binders. Sealing materials
• 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
• Refers: ASTM D36/D36M-14(2020) - Standard Test Method for Softening Point of Bitumen (Ring-and-Ball Apparatus)
• Effective Date: 01-May-2020
• Refers: ASTM C1417-19 - Standard Specification for Manufacture of Reinforced Concrete Sewer, Storm Drain, and Culvert Pipe for Direct Design
• Effective Date: 15-Jul-2019
• Refers: ASTM C412-19 - Standard Specification for Concrete Drain Tile
• Effective Date: 15-Jul-2019
• Refers: ASTM C655-19a - Standard Specification for Reinforced Concrete D-Load Culvert, Storm Drain, and Sewer Pipe
• Effective Date: 15-Jul-2019
• Refers: ASTM D217-19a - Standard Test Methods for Cone Penetration of Lubricating Grease
• Effective Date: 01-Jul-2019
• Refers: ASTM C507-19 - Standard Specification for Reinforced Concrete Elliptical Culvert, Storm Drain, and Sewer Pipe
• Effective Date: 01-Jul-2019
• Refers: ASTM C655-19 - Standard Specification for Reinforced Concrete D-Load Culvert, Storm Drain, and Sewer Pipe
• Effective Date: 01-Jul-2019
• Refers: ASTM C506-19 - Standard Specification for Reinforced Concrete Arch Culvert, Storm Drain, and Sewer Pipe
• Effective Date: 01-Jul-2019
• Refers: ASTM C76-19a - Standard Specification for Reinforced Concrete Culvert, Storm Drain, and Sewer Pipe
• Effective Date: 01-Jul-2019
• Refers: ASTM C681-14(2019) - Standard Test Method for Volatility of Oil- and Resin-Based, Knife-Grade, Channel Glazing Compounds
• Effective Date: 01-May-2019
• Refers: ASTM D217-19 - Standard Test Methods for Cone Penetration of Lubricating Grease
• Effective Date: 01-May-2019
• Refers: ASTM C76-19 - Standard Specification for Reinforced Concrete Culvert, Storm Drain, and Sewer Pipe
• Effective Date: 01-Jan-2019
• Refers: ASTM C506-18 - Standard Specification for Reinforced Concrete Arch Culvert, Storm Drain, and Sewer Pipe
• Effective Date: 01-Oct-2018
• Refers: ASTM C76-18a - Standard Specification for Reinforced Concrete Culvert, Storm Drain, and Sewer Pipe
• Effective Date: 01-Oct-2018

Overview

ASTM C877-21 is the internationally recognized standard specification for external sealing bands utilized with concrete pipe, manholes, and precast box sections. Published by ASTM International, this standard defines the design and material requirements for three distinct types of sealing bands. These bands are key components in providing a watertight seal in underground concrete infrastructure, enhancing the performance and longevity of sewer, storm drain, and culvert systems. The standard supports both public and private sector needs for quality, reliability, and safety in concrete pipeline installations.

Key Topics

• Band Types: ASTM C877-21 describes three main types of external sealing bands:
  • Type I: Comprised of rubber and mastic, with a protective film element to ensure optimal joint sealing.
  • Type II: Features a plastic film and mesh-reinforced mastic, including steel straps for mechanical reinforcement.
  • Type III: Uses a chemically-bonded adhesive butyl band with a plastic or rubber backing and an optional release element.
• Material and Design Requirements: Each type has specific requirements for base materials such as rubber compounds, mastic, plastic films, and adhesives. Physical properties such as tensile strength, elongation, water absorption, hardness, and chemical resistance are specified to guarantee performance under varied environmental conditions.
• Dimensional Criteria: Required minimum widths and thicknesses are established for each band type, ensuring compatibility with various pipe and manhole sizes.
• Performance Benchmarks: Bands covered by this specification are adequate for external hydrostatic pressures up to 13 psi (30 feet), provided they are properly installed.
• Testing Methods: The standard outlines accepted test methods for verifying material properties, including ASTM-specific tests related to compression set, ozone resistance, and adhesion.
• Inspection and Rejection Criteria: Procedures for inspection, acceptance, and rejection of sealing bands based on conformance to the specification and freedom from defects are stipulated.

Applications

• Concrete Pipes: C877-21 sealing bands are deployed in joint systems for nonreinforced and reinforced concrete sewer, storm drain, and culvert pipes.
• Precast Manholes and Box Sections: Ensures reliable sealing in precast concrete manholes and box culverts, reducing the risk of infiltration and exfiltration in buried infrastructure.
• Municipal and Civil Engineering Projects: Used extensively in public works, utility installations, and large-scale civil projects requiring robust, watertight, and durable concrete pipeline systems.
• Stormwater and Wastewater Systems: Critical to the integrity of below-grade piping and containment, supporting regulatory compliance for water quality and environmental protection.

Related Standards

For the effective implementation of ASTM C877-21, the following related standards provide complementary requirements and terminology:

• ASTM C14: Nonreinforced Concrete Sewer, Storm Drain, and Culvert Pipe
• ASTM C76: Reinforced Concrete Culvert, Storm Drain, and Sewer Pipe
• ASTM C412: Concrete Drain Tile
• ASTM C478/C478M: Circular Precast Reinforced Concrete Manhole Sections
• ASTM C506, C507, C655, C985, C1417, C1433: Specifications for various concrete pipe and precast structural applications
• ASTM C822: Terminology Relating to Concrete Pipe and Related Products
• ASTM D3953: Strapping, Flat Steel and Seals

ASTM C877-21 advances industry best practices for sealing concrete pipe and structures, thereby underpinning long-term performance, regulatory compliance, and protection of vital water and wastewater infrastructure. For details on revised requirements or further technical guidance, consult the official publication via ASTM International.

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:C877 −21
Standard Specification for
External Sealing Bands for Concrete Pipe, Manholes, and
Precast Box Sections
This standard is issued under the fixed designation C877; 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 C14 Specification for Nonreinforced Concrete Sewer, Storm
Drain, and Culvert Pipe
1.1 This specification covers external sealing bands to be
C76 Specification for Reinforced Concrete Culvert, Storm
used in conjunction with concrete pipe as defined in Terminol-
Drain, and Sewer Pipe
ogy C822 and conforming to Specifications C14, C76, C412,
C412 Specification for Concrete Drain Tile
C478/C478M, C506, C507, C655, C985, C1417, and C1433.
C478/C478M Specification for Circular Precast Reinforced
1.1.1 Type I, Rubber and Mastic Bands.
Concrete Manhole Sections
1.1.2 Type II, Plastic Film and Mesh Reinforced Mastic
C506 Specification for Reinforced Concrete Arch Culvert,
Bands.
Storm Drain, and Sewer Pipe
1.1.3 Type III, Chemically-Bonded Adhesive Butyl Bands.
C507 Specification for Reinforced Concrete Elliptical
1.2 This specification is the inch-pound companion to
Culvert, Storm Drain, and Sewer Pipe
Specification C877M; therefore, no SI equivalents are pre-
C655 Specification for Reinforced Concrete D-Load
sented in the specification.
Culvert, Storm Drain, and Sewer Pipe
NOTE 1—This specification covers only the design and material of the
C681 Test Method for Volatility of Oil- and Resin-Based,
sealing bands. Sealing bands covered by this specification are adequate,
Knife-Grade, Channel Glazing Compounds
when properly installed, for external hydrostatic pressures up to 13 psi,
C822 Terminology Relating to Concrete Pipe and Related
(30 ft) without leakage. The amount of infiltration or exfiltration flow in
Products
aninstalledpipelineisdependentuponmanyfactorsotherthanthesealing
bands; allowable quantities and suitable testing of the installed pipeline
C985 Specification for Nonreinforced Concrete Specified
and system must be covered by other specifications.
Strength Culvert, Storm Drain, and Sewer Pipe
1.3 This international standard was developed in accor-
C1417 Specification for Manufacture of Reinforced Con-
dance with internationally recognized principles on standard-
crete Sewer, Storm Drain, and Culvert Pipe for Direct
ization established in the Decision on Principles for the
Design
Development of International Standards, Guides and Recom-
C1433 Specification for Precast Reinforced Concrete Mono-
mendations issued by the World Trade Organization Technical
lithic Box Sections for Culverts, Storm Drains, and
Barriers to Trade (TBT) Committee.
Sewers
D36/D36M Test Method for Softening Point of Bitumen
2. Referenced Documents
(Ring-and-Ball Apparatus)
2.1 ASTM Standards:
D217 Test Methods for Cone Penetration of Lubricating
A167 Specification for Stainless and Heat-Resisting
Grease
Chromium-Nickel Steel Plate, Sheet, and Strip (With-
D395 Test Methods for Rubber Property—Compression Set
drawn 2014)
D412 Test Methods forVulcanized Rubber andThermoplas-
tic Elastomers—Tension
D471 Test Method for Rubber Property—Effect of Liquids
This specification is under the jurisdiction of ASTM Committee C13 on
D570 Test Method for Water Absorption of Plastics
Concrete Pipe and is the direct responsibility of Subcommittee C13.08 on Joints for
D573 Test Method for Rubber—Deterioration in an Air
Precast Concrete Structures.
Current edition approved Jan. 15, 2021. Published January 2021. Originally
Oven
approved in 1977. Last previous edition approved in 2016 as C877 – 16. DOI:
D624 Test Method for Tear Strength of Conventional Vul-
10.1520/C0877-21.
2 canized Rubber and Thermoplastic Elastomers
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
D882 Test Method for Tensile Properties of Thin Plastic
Standards volume information, refer to the standard’s Document Summary page on
Sheeting
the ASTM website.
D903 Test Method for Peel or Stripping Strength of Adhe-
The last approved version of this historical standard is referenced on
www.astm.org. sive Bonds
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
C877−21
TABLE 1 Required Minimum Sealing Band Width (Types I and II)
D1171 Test Method for Rubber Deterioration—Surface
Ozone Cracking Outdoors (Triangular Specimens) Equivalent Circular Pipe
Sealing Band Width, in.
Diameter, in.
D1278 Test Methods for Rubber from Natural Sources—
18 to 33 7
Chemical Analysis
36 to 78 9
D1682 Test Method for Breaking Load and Elongation of
84 to 108 11
Textile Fabric (Withdrawn 1992) 114 to 144 13
D1963 Test Method for Specific Gravity of Drying Oils,
Varnishes, Resins, and Related Materials at 25/25°C
(Withdrawn 2004)
other imperfections. The basic polymer shall be natural,
D2202 Test Method for Slump of Sealants
D2240 Test Method for Rubber Property—Durometer Hard- synthetic, or a blend of both and shall meet the physical
requirements prescribed in Section 6. The rubber element shall
ness
3 3 1
D3407 Test Methods for Joint Sealants, Hot-Poured, for have ribs with a height of ⁄16 in., spaced ⁄4 to 1 ⁄4 in. apart,
and have a thickness between the ribs of ⁄16 in. The thickness
Concrete and Asphalt Pavements (Withdrawn 1996)
D3953 Specification for Strapping, Flat Steel and Seals oftheribsisnotprohibitedfromvaryingfrom ⁄8 in.atthebase
to ⁄32 in. at the top.
3. Terminology
5.1.3 Mastic Element—The mastic element shall contain
rubber, reclaimed rubber and asphaltic derivatives, clay, and/or
3.1 Definitions—Fordefinitionsoftermsrelatingtoconcrete
resin and shall meet the physical requirements prescribed in
pipe, see Terminology C822.
Section 6. The mastic element shall have a thickness of ⁄8 in.
4. Basis of Acceptance
and be free of porous areas, air pockets, and contamination by
foreign matter.
4.1 The acceptability of the sealing bands shall be deter-
5.1.4 Protective Film—The protective film shall be water
mined by the results of the physical tests prescribed in this
soluble, have a 1-mil (0.001 in.) thickness, and meet the
specification, if and when required, and by inspection to
physical requirements prescribed in Section 6.
determine whether the sealing bands conform to this specifi-
cation as to design and freedom from defects.
NOTE 2—The function of the film is to protect the mastic surface prior
to installation. It is intended to dissolve away in the presence of moisture
5. Materials and Manufacture for Sealing Bands
during installation and expose the mastic for sealing.
5.1 Type I, Rubber and Mastic Bands:
5.2 Type II Plastic Film and Mesh Reinforced Mastic
5.1.1 Sealing bands shall be composed of rubber, mastic,
Bands:
and protective film elements as schematically shown in Fig. 1
5.2.1 Sealing bands shall be composed of a plastic film,
and with dimensions as required in the following:
reinforced, rubberized, asphalt, mastic coating with steel straps
5.1.1.1 Length of Sealing Band—For a given pipe size, the
as schematically shown in Fig. 2, with dimensions as required
length of the sealing band as furnished shall be such that after
in the following:
being stretched longitudinally 8 to 12 % as part of the
5.2.1.1 Length of Sealing Band for a Given Pipe Size—The
installation procedure, the sealing band will encircle the
length of the sealing band shall be equal to the outside
outside perimeter of the pipe and overlap by an amount equal
perimeter of the joint plus 8 in. to provide for overlap.
to, but not less than, the width of the sealing band. Sealing
5.2.1.2 Width of Sealing Band—The width of the sealing
bands may be furnished in the required length or multiples
band shall conform to the requirements of Table 1.
thereof.
5.2.2 Plastic Film Element—The plastic film element shall
5.1.1.2 Width of Sealing Band—The width of the sealing
beanextrudedpolymer,whichprovidesexternalreinforcement
band shall conform to the requirements of Table 1.
and shall meet the physical requirements prescribed in Section
5.1.2 Rubber Element—The rubber element shall be ex-
6.
truded or molded from a high-grade rubber compound and
5.2.3 Mesh Reinforcement Element, The mesh reinforce-
shall be cured in such a manner that any cross section will be
ment shall consist of a woven plastic mesh and shall meet the
dense, homogeneous, and free of porosity, blisters, pitting, and
physical requirements prescribed in Section 6.
5.2.4 Rubberized Asphalt Mastic Element—The rubberized,
asphalt, mastic element shall be a self adhering composition
and shall meet the requirements prescribed in Section 6.
FIG. 1Sealing Band Type I Schematic (Not to Scale) FIG. 2 Sealing Band Type II (Not to Scale)
C877−21
TABLE 2 Required Minimum Sealing Band Width (Type III)
5.2.5 Tie Strap Element—Thetiestrapelementshallbesteel
straps with a minimum width of ⁄8 in. and a minimum Equivalent Minimum Equivalent Minimum
Circular Pipe Sealing Band Circular Sealing Band
thickness of 0.020 in. and shall conform to Specification
Diameter, in. Width, in. Manhole Width, in.
D3953. Steel straps shall be secured around the pipe with
Diameter, in.
appropriate strapping tools as recommended by the sealing
12 to 33 6 . .
36 to 78 9 . .
band manufacturer.
84 and larger 12 . .
5.2.6 Tie Strap Sleeve Element—The tie strap sleeve ele-
... ... 24 to 120 6
ment shall consist of a minimum of 1 in. wide flat sleeve inside
which the steel tie straps are not prohibited from sliding freely.
The sleeve shall be made from woven or non-woven polypro-
shall be applied evenly and homogeneously to the backing
pylene fabric with nominal weight of 3.5 oz/yd .
band with a minimum thickness of:
5.2.7 Release Sheet Element—The release element shall
Type A (Plastic backing band) 0.03 in.
consist of coated paper or plastic that has demonstrated its
Type B (Rubber backing band) 0.03 in.
suitability for this use.
5.3.4 Optional Primer Element—When required, a primer
5.3 Type III, Chemically-Bonded Adhesive Butyl Bands:
shall be used as directed by the sealing band manufacturer and
Type A (Plastic backing band) shall be spread in a continuous film at the intersection of the
Type B (Rubber backing band)
joint.Theapplicationwidthshallbesufficienttoensurethatthe
5.3.1 Sealing bands shall be composed of a backing band, entire band area will contact only primed surfaces.
an applied continuous butyl adhesive coating, and an optional
5.3.5 Optional Tie Strap Element—The optional tie strap
release element (as schematically shown in Fig. 3), with width element shall be steel straps with a minimum width of ⁄8 in.
and overlap dimensions as required by 5.3.1.1 and 5.3.1.2.
and a minimum thickness of 0.20 in. and shall conform to
Purchaser specified clamping devices or tie straps are not Specification D3953. Steel straps shall be secured around the
prohibited to be used with these sealing bands.
pipe with appropriate strapping tools as recommended by the
5.3.1.1 Length of Sealing Band for a Given Pipe Size—The sealing band manufacturer.
length of the sealing bands shall be equal to the outside
5.3.6 Optional Clamping Devices—Optional clamping de-
perimeter of the joint plus a minimum distance equal to two vices shall be constructed of corrosion resistant materials
times the width of the material used to provide for overlap.
meeting the physical properties and chemical composition
This requirement shall allow the sealing bands to be applied
requirements of Specification A167.
without stretching the product during application. 5.3.7 Optional Release Element—The optional release ele-
5.3.1.2 Width of Sealing Band—The minimum width of the
ment shall
...

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: C877 − 16 C877 − 21
Standard Specification for
External Sealing Bands for Concrete Pipe, Manholes, and
Precast Box Sections
This standard is issued under the fixed designation C877; 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 external sealing bands to be used in conjunction with concrete pipe as defined in Terminology C822
and conforming to Specifications C14, C76, C412, C478C478/C478M, C506, C507, C655, C985, C1417, and C1433.
1.1.1 Type I, Rubber and Mastic Bands.
1.1.2 Type II, Plastic Film and Mesh Reinforced Mastic Bands.
1.1.3 Type III, Chemically-Bonded Adhesive Butyl Bands.
1.2 This specification is the inch-pound companion to Specification C877M; therefore, no SI equivalents are presented in the
specification.
NOTE 1—This specification covers only the design and material of the sealing bands. Sealing bands covered by this specification are adequate, when
properly installed, for external hydrostatic pressures up to 13 psi, (30 ft) without leakage. The amount of infiltration or exfiltration flow in an installed
pipeline is dependent upon many factors other than the sealing bands; allowable quantities and suitable testing of the installed pipeline and system must
be covered by other specifications.
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.
2. Referenced Documents
2.1 ASTM Standards:
A167 Specification for Stainless and Heat-Resisting Chromium-Nickel Steel Plate, Sheet, and Strip (Withdrawn 2014)
C14 Specification for Nonreinforced Concrete Sewer, Storm Drain, and Culvert Pipe
C76 Specification for Reinforced Concrete Culvert, Storm Drain, and Sewer Pipe
C412 Specification for Concrete Drain Tile
C478C478/C478M Specification for Circular Precast Reinforced Concrete Manhole Sections (Metric) C0478_C0478M
C506 Specification for Reinforced Concrete Arch Culvert, Storm Drain, and Sewer Pipe
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 Dec. 15, 2016Jan. 15, 2021. Published January 2017January 2021. Originally approved in 1977. Last previous edition approved in 20082016
as C877 – 08.C877 – 16. DOI: 10.1520/C0877-16.10.1520/C0877-21.
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.
The last approved version of this historical standard is referenced on www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
C877 − 21
C507 Specification for Reinforced Concrete Elliptical Culvert, Storm Drain, and Sewer Pipe
C655 Specification for Reinforced Concrete D-Load Culvert, Storm Drain, and Sewer Pipe
C681 Test Method for Volatility of Oil- and Resin-Based, Knife-Grade, Channel Glazing Compounds
C822 Terminology Relating to Concrete Pipe and Related Products
C985 Specification for Nonreinforced Concrete Specified Strength Culvert, Storm Drain, and Sewer Pipe
C1417 Specification for Manufacture of Reinforced Concrete Sewer, Storm Drain, and Culvert Pipe for Direct Design
C1433 Specification for Precast Reinforced Concrete Monolithic Box Sections for Culverts, Storm Drains, and Sewers
D36D36/D36M Test Method for Softening Point of Bitumen (Ring-and-Ball Apparatus)
D217 Test Methods for Cone Penetration of Lubricating Grease
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
D570 Test Method for Water Absorption of Plastics
D573 Test Method for Rubber—Deterioration in an Air Oven
D624 Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic Elastomers
D882 Test Method for Tensile Properties of Thin Plastic Sheeting
D903 Test Method for Peel or Stripping Strength of Adhesive Bonds
D1171 Test Method for Rubber Deterioration—Surface Ozone Cracking Outdoors (Triangular Specimens)
D1278 Test Methods for Rubber from Natural Sources—Chemical Analysis
D1682 Test Method for Breaking Load and Elongation of Textile Fabric (Withdrawn 1992)
D1963 Test Method for Specific Gravity of Drying Oils, Varnishes, Resins, and Related Materials at 25/25°C (Withdrawn 2004)
D2202 Test Method for Slump of Sealants
D2240 Test Method for Rubber Property—Durometer Hardness
D3407 Test Methods for Joint Sealants, Hot-Poured, for Concrete and Asphalt Pavements (Withdrawn 1996)
D3953 Specification for Strapping, Flat Steel and Seals
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 sealing bands 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 sealing bands conform to this specification as to design and
freedom from defects.
5. Materials and Manufacture for Sealing Bands
5.1 Type I, Rubber and Mastic Bands:
5.1.1 Sealing bands shall be composed of rubber, mastic, and protective film elements as schematically shown in Fig. 1 and with
dimensions as required in the following:
5.1.1.1 Length of Sealing Band—For a given pipe size, the length of the sealing band as furnished shall be such that after being
FIG. 1 Sealing Band Type I Schematic (Not to Scale)
C877 − 21
stretched longitudinally 8 to 12 % as part of the installation procedure, the sealing band will encircle the outside perimeter of the
pipe and overlap by an amount equal to, but not less than, the width of the sealing band. Sealing bands may be furnished in the
required length or multiples thereof.
5.1.1.2 Width of Sealing Band—The width of the sealing band shall conform to the requirements of Table 1.
5.1.2 Rubber Element—The rubber element shall be extruded or molded from a high-grade rubber compound and shall be cured
in such a manner that any cross section will be dense, homogeneous, and free of porosity, blisters, pitting, and other imperfections.
The basic polymer shall be natural, synthetic, or a blend of both and shall meet the physical requirements prescribed in Section
3 3 1
6. The rubber element shall have ribs with a height of ⁄16 in., spaced ⁄4 to 1 ⁄4 in. apart, and have a thickness between the ribs
1 1 1
of ⁄16 in. The thickness of the ribs is not prohibited from varying from ⁄8 in. at the base to ⁄32 in. at the top.
5.1.3 Mastic Element—The mastic element shall contain rubber, reclaimed rubber and asphaltic derivatives, clay, and/or resin and
shall meet the physical requirements prescribed in Section 6. The mastic element shall have a thickness of ⁄8 in. and be free of
porous areas, air pockets, and contamination by foreign matter.
5.1.4 Protective Film—The protective film shall be water soluble, have a 1-mil (0.001 in.) thickness, and meet the physical
requirements prescribed in Section 6.
NOTE 2—The function of the film is to protect the mastic surface prior to installation. It is intended to dissolve away in the presence of moisture during
installation and expose the mastic for sealing.
5.2 Type II Plastic Film and Mesh Reinforced Mastic Bands:
5.2.1 Sealing bands shall be composed of a plastic film, reinforced, rubberized, asphalt, mastic coating with steel straps as
schematically shown in Fig. 2, with dimensions as required in the following:
5.2.1.1 Length of Sealing Band for a Given Pipe Size—The length of the sealing band shall be equal to the outside perimeter of
the joint plus 8 in. to provide for overlap.
5.2.1.2 Width of Sealing Band—The width of the sealing band shall conform to the requirements of Table 1.
5.2.2 Plastic Film Element—The plastic film element shall be an extended polymerextruded polymer, which provides external
reinforcement and shall meet the physical requirements prescribed in Section 6.
5.2.3 Mesh Reinforcement Element, The mesh reinforcement shall consist of a woven plastic mesh and shall meet the physical
requirements prescribed in Section 6.
5.2.4 Rubberized Asphalt Mastic Element—The rubberized, asphalt, mastic element shall be a self adhering composition and shall
meet the requirements prescribed in Section 6.
5.2.5 Tie Strap Element—The tie strap element shall be steel straps with a minimum width of ⁄8 in. and a minimum thickness
of 0.020 in. and shall conform to Specification D3953. Steel straps shall be secured around the pipe with appropriate strapping tools
as recommended by the sealing band manufacturer.
5.2.6 Tie Strap Sleeve Element—The tie strap sleeve element shall consist of a minimum of 1 in. wide flat sleeve inside which the
steel tie straps are not prohibited from sliding freely. The sleeve shall be made from woven or non-woven polypropylene fabric
with nominal weight of 3.5 oz/yd .
TABLE 1 Required Minimum Sealing Band Width (Types I and II)
Equivalent Circular Pipe
Sealing Band Width, in.
Diameter, in.
18 to 33 7
18 to 33 7
36 to 78 9
36 to 78 9
84 to 108 11
114 to 144 13
C877 − 21
FIG. 2 Sealing Band Type II (Not to Scale)
5.2.7 Release Sheet Element—The disposable release sheet element shall consist of a silicone coated paper with a minimum basis
weight of 50 lb/3000 ftcoated paper or plastic that has demonstrated its suitability for this . use.
5.3 Type III, Chemically-Bonded Adhesive Butyl Bands:
Type A (Plastic backing band)
Type B (Rubber backing band)
5.3.1 Sealing bands shall be composed of a backing band, an applied continuous butyl adhesive coating, and an optional release
element (as schematically shown in Fig. 3), with width and overlap dimensions as required by 5.3.1.1 and 5.3.1.2. Purchaser
specified clamping devices or tie straps are not prohibited to be used with these sealing bands.
5.3.1.1 Length of Sealing Band for a Given Pipe Size—The length of the sealing bands shall be equal to the outside perimeter of
the joint plus a minimum distance equal to two times the width of the material used to provide for overlap. This requirement shall
allow the sealing bands to be applied without stretching the product during application.
5.3.1.2 Width of Sealing Band—The minimum width of the sealing band shall conform to the requirements of Table 2.
5.3.2 Backing Band Element:
5.3.2.1 Type A (Plastic Backing Band)—The plastic backing band element shall be made from high density polyethylene plastic
conforming to the physical requirements prescribed in Section 6
5.3.2.2 Type B (Rubber Backing Band)—The rubber used in the rubber backing band element shall conform to the physical
property requirements of Section 6.
5.3.3 Butyl Rubber Adhesive Element—The butyl rubber adhesive element, conforming to the physical requirements prescribed in
Section 6, shall be a self-adhering semi-solid and shall be applied evenly and homogeneously to the backing band with a minimum
thickness of:
Type A (Plastic backing band) 0.03 in.
Type B (Rubber backing band) 0.03 in.
FIG. 3 Sealing Band Type III (Not to Scale)
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TABLE 2 Required Minimum Sealing Band Width (Type III)
Equivalent Minimum Equivalent Minimum
Circular Pipe Sealing Band Circular Sealing Band
Diameter, in. Width, in. Manhole Width, in.
Diameter, in.
12 to 33 6 . .
36 to 78 9 . .
84 and larger 12 . .
... ... 24 to 120 6
5.3.4 Optional Primer Element—When required, a primer shall be used as directed by the sealing band manufacturer and shall be
spread in a continuous film at the intersection of the joint. The application width shall be sufficient to ensure that the entire band
area will contact only primed surfaces.
5.3.5 Optional Tie Strap Element—The optional tie strap element
...