AP/M PERMAFORM > Engineering

Specifications

Sewer Manhole Rehabilitation Specifications

Intent: It is the intent of this specification to provide for the waterproofing, sealing, structural enhancement and corrosion protection of existing manholes, wet wells and similar underground structures from the cover to the channel. This specification offers flexibility in design by offering current technologies available for repairing the various defects found in sanitary sewer structures from minor leaks to complete structural failure.
General: This specification establishes the minimum standard for materials and method of application for the waterproofing, sealing, structural enhancement and corrosion protection of existing manholes, wet wells and similar underground structures from the cover to the channel. The repair methods may be engineered for the groundwater pressures, dimensions and condition of each manhole.
Referenced Standards
Inspection and Evaluation
Leak Plugging and Offset Patching
I & I Prevention at the Frame Chimney Joint
Structural Liner
Chemical Protective Coating – COR+GARD® Composite
MIC Corrosion Protection Admixture – ConMICShield®
Submittals