ASTM C877M-21

Podrobné informace

Označení: ASTM C877M-21

Datum vydání: 15.01.2021

Stran: 6

Země: Americká technická norma

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Anotace

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.


Keywords:
bands, external, concrete pipe, joints,, ICS Number Code 23.040.80 (Seals for pipe and hose assemblies)