1、Designation: C 877M 02 (Reapproved 2009)Standard Specification forExternal Sealing Bands for Concrete Pipe, Manholes, andPrecast Box Sections (Metric)1This standard is issued under the fixed designation C 877M; the number immediately following the designation indicates the year oforiginal adoption o
2、r, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers external sealing bands to beused in conjunction with
3、 concrete pipe as defined in Terminol-ogy C 822 and conforming to Specifications C 14M, C 76M,C 412M, C 478M, C 506M, C 507M, C 655M, C 985M,C 1417M, and C 1433M.1.1.1 Type I, Rubber and Mastic Bands.1.1.2 Type II, Plastic Film and Mesh Reinforced MasticBands.1.1.3 Type III, Chemically Bonded Adhesi
4、ve Butyl Bands.1.2 This specification is the metric counterpart of Specifi-cation C 877.NOTE 1This specification covers only the design and material of thesealing bands. Sealing bands covered by this specification are adequate,when properly installed, for external hydrostatic pressures up to 90 kPa,
5、(9.14 m) without leakage. The amount of infiltration or exfiltration flow inan installed pipeline is dependent upon many factors other than the sealingbands; allowable quantities and suitable testing of the installed pipelineand system must be covered by other specifications.2. Referenced Documents2
6、.1 ASTM Standards:2A 167 Specification for Stainless and Heat-ResistingChromium-Nickel Steel Plate, Sheet, and StripC 14M Specification for Nonreinforced Concrete Sewer,Storm Drain, and Culvert Pipe MetricC 76M Specification for Reinforced Concrete Culvert,Storm Drain, and Sewer Pipe MetricC 412M Sp
7、ecification for Concrete Drain Tile MetricC 478M Specification for Precast Reinforced ConcreteManhole Sections (Metric)C 506M Specification for Reinforced Concrete Arch Cul-vert, Storm Drain, and Sewer Pipe (Metric)C 507M Specification for Reinforced Concrete EllipticalCulvert, Storm Drain, and Sewe
8、r Pipe (Metric)C 655M Specification for Reinforced Concrete D-LoadCulvert, Storm Drain, and Sewer Pipe (Metric)C 681 Test Method for Volatility of Oil- and Resin-Based,Knife-Grade, Channel Glazing CompoundsC 766 Test Method forAdhesionAfter Impact of PreformedTape Sealants3C 822 Terminology Relating
9、 to Concrete Pipe and RelatedProductsC 985M Specification for Nonreinforced Concrete Speci-fied Strength Culvert, Storm Drain, and Sewer Pipe Met-ricC 1417M Specification for Manufacture of Reinforced Con-crete Sewer, Storm Drain, and Culvert Pipe for DirectDesign MetricC 1433M Specification for Pre
10、cast Reinforced ConcreteMonolithic Box Sections for Culverts, Storm Drains, andSewers (Metric)D36 Test Method for Softening Point of Bitumen (Ring-and-Ball Apparatus)D 217 Test Methods for Cone Penetration of LubricatingGreaseD 395 Test Methods for Rubber PropertyCompressionSetD 412 Test Methods for
11、 Vulcanized Rubber and Thermo-plastic ElastomersTensionD 471 Test Method for Rubber PropertyEffect of LiquidsD 570 Test Method for Water Absorption of PlasticsD 573 Test Method for RubberDeterioration in an AirOvenD 624 Test Method for Tear Strength of ConventionalVulcanized Rubber and Thermoplastic
12、 ElastomersD 882 Test Method for Tensile Properties of Thin PlasticSheetingD 1171 Test Method for Rubber DeteriorationSurfaceOzone Cracking Outdoors or Chamber (Triangular Speci-mens)D 1278 Test Methods for Rubber from Natural SourcesChemical AnalysisD 1682 NO TITLED 1963 Test Method for Specific Gr
13、avity of Drying Oils,Varnishes, Resins, and Related Materials at 25/25C31This specification is under the jurisdiction of ASTM Committee C08 onRefractories and is the direct responsibility of Subcommittee C08.00 on .Current edition approved Oct. 1, 2009. Published October 2009. Originallyapproved in
14、1980. Last previous edition approved in 2002 as C 877M 021.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3W
15、ithdrawn.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.D 2202 Test Method for Slump of SealantsD 2240 Test Method for Rubber PropertyDurometerHardnessD 3407 Test Methods for Joint Sealants, Hot-Poured, forConcrete and Asphalt Pavem
16、ents3D 3953 Specification for Strapping, Flat Steel and Seals3. Terminology3.1 DefinitionsFor definitions of terms relating to con-crete pipe, see Terminology C 822.4. Basis of Acceptance4.1 The acceptability of the sealing bands shall be deter-mined by the results of the physical tests prescribed i
17、n thisspecification, if and when required, and by inspection todetermine whether the sealing bands conform to this specifi-cation as to design and freedom from defects.5. Materials and Manufacture for Sealing Bands5.1 Type I, Rubber and Mastic Bands:5.1.1 Sealing bands shall be composed of rubber, m
18、astic,and protective film elements as schematically shown in Fig. 1and with dimensions as required in the following:5.1.1.1 Length of Sealing BandFor a given pipe size, thelength of the sealing band as furnished shall be such that afterbeing stretched longitudinally 8 to 12 % as part of theinstallat
19、ion procedure, the sealing band will encircle theoutside perimeter of the pipe and overlap by an amount equalto, but not less than, the width of the sealing band. Sealingbands may be furnished in the required length or multiplesthereof.5.1.1.2 Width of Sealing BandThe width of the sealingband shall
20、conform to the requirements of Table 1.5.1.2 Rubber ElementThe rubber element shall be ex-truded or molded from a high-grade rubber compound andshall be cured in such a manner that any cross section will bedense, homogeneous, and free of porosity, blisters, pitting, andother imperfections. The basic
21、 polymer shall be natural,synthetic, or a blend of both and shall meet the physicalrequirements prescribed in Section 6. The rubber element shallhave ribs with a height of 4.8 mm, spaced 19 to 32 mm apart,and have a thickness between the ribs of 1.6 mm. The thicknessof the ribs is not prohibited fro
22、m varying from 3.2 mm at thebase to 0.8 mm at the top.5.1.3 Mastic ElementThe mastic element shall containrubber, reclaimed rubber and asphaltic derivatives, clay, and/orresin and shall meet the physical requirements prescribed inSection 6. The mastic element shall have a thickness of 3.2 mmand be f
23、ree of porous areas, air pockets, and contamination byforeign matter.5.1.4 Protective FilmThe protective film shall be watersoluble, have a 0.025-mm thickness, and meet the physicalrequirements prescribed in Section 6.NOTE 2The function of the film is to protect the mastic surface priorto installati
24、on. It is intended to dissolve away in the presence of moistureduring 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 strapsas s
25、chematically shown in Fig. 2 with dimensions as requiredin the following:5.2.1.1 Length of Sealing Band for a Given Pipe SizeThelength of the sealing band shall be equal to the outsideperimeter of the joint plus 200 mm to provide for overlap.5.2.1.2 Width of Sealing BandThe width of the sealingband
26、shall conform to the requirements of Table 1.5.2.2 Plastic Film ElementThe plastic film element shallbe an extended polymer which provides external reinforcementand shall meet the physical requirements prescribed in Section6.5.2.3 Mesh Reinforcement ElementThe mesh reinforce-ment shall consist of a
27、woven plastic mesh and shall meet thephysical requirements prescribed in Section 6.5.2.4 Rubberized Asphalt Mastic ElementThe rubberized,asphalt, mastic element shall be a self adhering compositionand shall meet the requirements prescribed in Section 6.5.2.5 Tie Strap ElementThe tie strap element sh
28、all besteel straps with a minimum width of 15 mm and a minimumthickness of 0.50 mm and shall conform to SpecificationD 3953. Steel straps shall be secured around the pipe withappropriate strapping tools as recommended by the sealingband manufacturer.5.2.6 Tie Strap Sleeve ElementThe tie strap sleeve
29、 ele-ment shall consist of a minimum of 25 mm wide flat sleeveinside which the steel tie straps are not prohibited from slidingfreely. The sleeve shall be made from woven or non-wovenpolypropylene fabric with nominal mass of 0.12 kg/m2.FIG. 1 Sealing Band Type I Schematic (Not to Scale)TABLE 1 Requi
30、red Sealing Band WidthEquivalent Circular PipeDiameter, mmSealing BandWidth, mm450 to 825 180900 to 1950 2302100 to 2700 2802850 to 3600 330FIG. 2 Sealing Band Type II (Not to Scale)C 877M 02 (2009)25.2.7 Release Sheet ElementThe disposable release sheetelement shall consist of a silicone coated pap
31、er with aminimum basis mass of 0.1 kg/m2.5.3 Type III, Chemically-Bonded Adhesive Butyl Bands:Type A (Plastic backing band)Type B (Rubber backing band)A semi-liquid paintable butyl rubber-based adhesive primer5.3.1 Sealing bands shall be composed of a backing band,an applied continuous butyl adhesiv
32、e coating and an optionalrelease element (as schematically shown in Fig. 3), with widthand overlap dimensions as required by 5.3.1.1 and 5.3.1.2.Purchaser specified clamping devices or tie straps are notprohibited to be used with these sealing bands.5.3.1.1 Length of Sealing Band for a Given Pipe Si
33、zeThelength of the sealing bands shall be equal to the outsideperimeter of the joint plus a minimum distance equal to twotimes the width of the material used to provide for overlap.This requirement will allow the sealing bands to be appliedwithout stretching the product during application.5.3.1.2 Wi
34、dth of Sealing BandThe minimum width of thesealing 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 backingband element shall be made from high density polyethyleneplastic, conforming to the physical requirements prescribed
35、 inSection 6.5.3.2.2 Type B (Rubber Backing Band)The rubber used inthe rubber backing band element shall conform to the physicalproperty requirements prescribed in Section 6.5.3.3 Butyl Rubber Adhesive ElementThe butyl rubberadhesive element, conforming to the physical requirementsprescribed in Sect
36、ion 6, shall be a self-adhering semi-solid andshall be applied evenly and homogeneously to the backingband with a minimum thickness of:Type A (Plastic Backing Band) 0.75-mmType B (Rubber Backing Band) 0.75-mm5.3.4 Primer ElementThe primer element shall be asemi-liquid homogeneous mixture of butyl ru
37、bber and vehicle,conforming to the physical requirements prescribed in Section6, and shall be spread in a continuous film at the intersection ofthe joint. The application width shall be sufficient to ensure thatthe entire band area will contact only primed surfaces.5.3.5 Optional Tie StrapThe option
38、al tie strap elementshall be steel straps with a minimum width of 16 mm and aminimum thickness of 5 mm and shall conform to specificationD 3953. Steel straps shall be secured around the pipe withappropriate strapping tools as recommended by the sealingband manufacturer.5.3.6 Optional Clamping Device
39、sOptional clamping de-vices shall be constructed of corrosion resistant materialmeeting the physical properties and chemical compositionrequirements of Specification A 167.5.3.7 Optional Release ElementThe optional release ele-ment shall consist of coated paper or plastic that has demon-strated its
40、suitability for this use.6. Physical Requirements for Sealing Band Elements6.1 Type I Rubber and Mastic Bands:6.1.1 The rubber element shall have the following physicalproperties when tested in accordance with 8.1.1:Tensile strength, min, MPa 8.27Elongation at break, min, % 300Shore durometer hardne
41、ss:MinMax6070Compression set, max, % of deflection 25Accelerated aging:Decrease in tensile strength, max, % oforiginal15Decrease in elongation, max, % of original 20Water absorption by weight, max, % 10Ozone resistance rating 06.1.2 The mastic element shall be capable of flowing, withinthe confines
42、of the sealing band, to fill joint surface imperfec-tions against which the sealing band is placed and shall have nodeleterious effect on the rubber element. The mastic elementshall have the following physical properties when tested inaccordance with 8.1.2:Minimum MaximumAsh-inert matter 10 % 25 %Vo
43、latiles 5 % 10 %Specific gravity 1.20 1.35Slump 0.3 mm 0.9 mmPenetration 200 3006.1.3 The protective film element shall have a maximumwater solubility of 60 s/0.020 mm of thickness when tested inaccordance with 8.1.3.6.2 Type II Plastic Film and Mesh Reinforced Mastic Bands:6.2.1 The plastic film el
44、ement shall have the followingphysical properties when tested in accordance with 8.2.1:Tensile strength, min, MPa 27.6Elongation at break, min,% 100Tear resistance, min, MPa 10.4Water absorption, max, % 0.016.2.2 The reinforcing mesh element shall have the followingphysical properties when tested in
45、 accordance with 8.2.2:FIG. 3 Sealing Band Type III (Not to Scale)TABLE 2 Required Sealing Band Width (Type III)Equivalent Circular PipeDiameter, mmMinimum Sealing Band Width,mm300-900 152901-2000 2292001 and larger 305C 877M 02 (2009)3Tensile strength, min, N/mmwarp 13fill 13Elongation at break, mi
46、n, %warp 20fill 206.2.3 The rubberized asphalt mastic layer shall have thefollowing physical properties when tested in accordance with8.2.3:Minimum MaximumAsh-inert matter, % 8.0 15.0Volatiles, % 0.1 2.0Specific gravity 0.95 1.05Softening temperature, min, C 79.4 Penetration, dmm 60 90Flow, mm 10 10
47、6.3 Type III, Chemically-Bonded Adhesive Butyl Bands:6.3.1 The backing band element shall have the followingphysical properties when tested in accordance with 8.3.1(plastic) and 8.3.2 (rubber):Type A (Plastic Backing Band)Tensile strength, min, MPa 27.6Elongation at break, min, % 100Tear resistance,
48、 min, MPa 10.4Water absorption, max, % 0.01Type B (Rubber Backing Band)Tensile strength, min, MPa 8.27Elongation at break, min, % 300Shore durometer hardness:min 60max 70Compression set, max, % of deflection 25Accelerated aging:Decrease in tensile strength, max, % of original 15Decrease in elongatio
49、n, max, % of original 20Water absorption by weight, max, % 10Ozone resistance rating 06.3.2 The butyl rubber adhesive element shall have thefollowing physical properties when tested in accordance with8.3.3:Minimum MaximumAsh-inert,% 30 50Volatiles, % 0.1 2Specific gravity 1.15 1.50Adhesion after impact, % 50 100Penetration at 25C, dmm 50 1007. Permissible Variations in Dimensions7.1 Type I, Rubber and Mastic Bands:7.1.1 The thickness of the rubber element between the ribsshall be a minimum of 1.6 mm and a maximum of 2.4 mm.7.1.2 The r
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