This specification covers external sealing bands for use in concrete pipe, manholes, and precast box sections. The sealing bands are classified into three types: Type I for sealing bands composed of rubber, mastic, and protective film elements, Type II for those made up of plastic film, reinforced, rubberized, asphalt, mastic coating with steel straps, and Type III for bands made composed of a backing band, butyl coating, and an optional release element. All sealing bands should be tested using the prescribed procedures and should conform to the physical property requirements specified for each type.

1.1 This specification covers external sealing bands to be used in conjunction with concrete pipe as defined in Terminology C 822 and conforming to Specifications C 14, C 76, C 412, C 478, C 506, C 507, C 655, C 985, C 1417, and C 1433.

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 C 877M; 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.