ASTM F 2551:2026

1.1 This practice covers the procedures to repair, reinforce, seal, and protect storm or sanitary sewer manholes and structures by the installation of a prepackaged cementitious (typically portland or calcium aluminate) or geopolymer-based mortar that can function as a full depth restoration or a partial depth repair. A high-strength, fiber-reinforced cementitious or geopolymer mortar is manually sprayed, hand troweled, or centrifugally cast in a uniform, prescribed thickness to all cleaned, interior surfaces from the bottom of the frame to and including the bench and channel. The cementitious or geopolymer liner may be applied to manholes and structures constructed of brick, concrete, block, corrugated metal, and various other materials. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Manholes are permit-required confined spaces in accordance with OSHA definition and should be treated as such, requiring confined space entry permits, appropriate monitoring equipment, and the associated personal protective equipment. 1.4 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.

93.030