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Manhole Rehabilitation

Importance of Manholes

Manholes allow access to the sewer line, join sewers together, align and change the flow direction, and provide ventilation so gases and odors can be released from the sewer lines. Manholes also provide access to the sewer lines in order to clean, inspect, maintain, and rehabilitate. Unfortunately, if manholes are not properly maintained, they will contribute to an excessive amount of inflow and infiltration. This leads to the deterioration of the wastewater collection system. 

There are 6 main categories of manhole rehabilitation:

Cementitious Mortar

These linings can be installed quickly. Even though they require stopping infiltration to clean the manhole, they do not require the structure to be completely dry.

Polymer

Spray or hand-applied polymer linings include epoxy, silicates, polyurethanes, or polyureas. 

Cured-In-Place Manhole

CIPM lining is a solid liner that is made up of a felt tube saturated with resin to form a solid liner. This method works well with any size and shape manhole and is water resistant.

Chimney Rehab

The adjustable portion of a manhole called the chimney is an area that can lead to significant inflow into the sewer system. Due to poor construction, traffic loading, and freeze thaw this area of the manhole is subjected to forces that deteriorate the structure. Chimney products have to be designed to handle these forces. 

Chemical Grout

Chemical Grout is used to stop leaks in manholes and other underground structures. Chemical grout can be used as stand alone leak abatement when manholes are in good condition or to stop leaks prior to rehabilitation.

Other

Other rehabilitation technologies that dont fit into the other categories. 

Cementitious Mortar Lining

Reliner MSP® Cement

Click HERE for website

Mainstay ML-72

Click HERE for website

Mortartec Ceramico

Click HERE for website

Permacast MS-10,000

Click HERE for website

Quadex Repair Materials

Click HERE for brochure

MasterEmaco

Click HERE for website

Polymer Lining

Cured-in-Place Manhole (CIPM) Lining

Triplex™ Liner System

Click HERE for website

CIP Liner

Click HERE for website

CIPM Lining System

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Chimney Rehab

Chemical Grout

Other Types of Manhole Rehab

Monoform® & Monoform® PLUS

Click HERE for website

Fiberglass Expansion Liner Using EIPI

Click HERE for website

CSI Fiberglass Manhole

Click HERE for website

Infi-Shield Gator Wrap

Click HERE for website

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