ASTM F2551-09(2023)

Podrobné informácie

Označenie: ASTM F2551-09(2023)

Dátum vydania: 15.07.2023

Stránok: 4

Krajina: Americká technická norma

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Anotácia

This practice describes the procedures involved in the structural reinforcement, sealing, protection, and rehabilitation of sanitary sewer manholes by the application of a prepackaged protective cementitious liner system to all cleaned interior surface from the bottom of the frame to the bench. The manholes to which the cementitious liner shall be applied may be made of brick, concrete, block, and various other materials. Detailed descriptions are given for all prepackaged materials necessary for this practice that include materials for substrate repairs, cementitious repair materials, infiltration water control materials, cementitious water control materials, chemical grout materials, and lining materials. Detailed descriptions are also provided for each procedure involved here which includes surface preparation, high pressure cleaning, surface repair, mixing of prepackaged cementitious repair materials, spray application of the cement liner by manual surface sealing or centrifugal cast process, and curing of the freshly applied cementitious mortar.


Keywords:
cementitious liner, cement liner, corrosion protection, manhole rehabilitation, manhole renewal, sanitary sewer manhole, sewer manhole, stopping water infiltration, structural enhancement, structural rehabilitation,, ICS Number Code 93.030 (External sewerage systems)