Sanitary Sewer Rehabilitation
National Gunite has rehabilitated aging and failing brick or cast-in-place concrete sanitary sewer pipes for municipalities and sewer systems all across the eastern United States.
Municipal Infrastructure Solutions Built to Last
For more than a century, several layers of brick were used to construct municipal sanitary sewer lines. While thousands of miles of brick sewer lines remain in service, many have deteriorated to a critical point.
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Simplify the Solution with Affordable RehabilitationNumerous old sewers in urban areas are located near or under buildings and other large structures. Replacing these lines using conventional excavation would be prohibitively expensive or impossible. National Gunite offers a way to rehabilitate these lines at a fraction of the cost and complexity of replacing them.
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Extend the Life of Sewers for DecadesIf the bricks are still in place, and only the mortar joints are failing, National Gunite can spray on a 1.5 to 2-inch layer of gunite reinforced with polypropylene fibers.
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Optimize Your Repair for Long Lasting Reinforced ResultsIf the bricks are loose or missing, anchors can be installed into sound material. Reinforcement is then secured to the anchors prior to spraying fully structural gunite onto the reinforcement and brick. This adds structural integrity to the sewer, virtually restoring its original design life.
Call for more info or Emergency Services
814-533-5780
Before & After - Sanitary Sewer Projects
Advantages of Shotcrete
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LONG LASTING RESULTSStructural integrity with high strength, low permeability, and high durability
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MINIMAL DISRUPTIONAvoid costly and unnecessary inconveniences to public traffic and local businesses and first responders
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NO EXCAVATIONTrenchless technology means bottom-line savings compared to the cost of replacing pipe
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FASTER HASSLE-FREE RESTORATIONAvoid the headaches and delays of replacing pipe (e.g. disrupting or relocating existing utilities)
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ADAPTABLE REPAIRSFully Structural Repairs applicable to all shapes (ovals, arches, circular, square, symmetrical, asymmetrical, etc.)
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IMPROVED PIPE FLOWSmooth finish of shotcrete reduces the roughness of a pipe (Manning’s coefficient)
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MINIMAL CONSTUCTION FOOTPRINTStaging up to hundreds of feet away if necessary and only manhole access needed
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GREATER STABILIZATIONSuperior structural reinforcement than repair solutions such as polymer coatings & slip lining
