A Hard and Fast Rule
Chemical sealing is used in sewer systems to seal leaks and to stop infiltration. Most leaks present in structurally sound sewer systems are found in pipe joints, manholes, service connections, and within the first few feet of service laterals. The most economical means of repairing these types of leaks is to use chemical grout.
We start by forcing a two-part gel into cracks and openings. Curing can take as little as eight seconds or more than an hour, depending on the application. The hardened product is continuous, irreversible, waterproof and non-porous. And where roots are present, we introduce an additive to prevent any further growth.
In addition to preventing infiltration and exfiltration within a sewer system, chemical grouting strengthens and stabilizes the soil outside and around the sewer pipes and manholes. We also find it effective in combatting erosion and preventing the encroachment of hazardous waste.
Underground Void Filling and Soil Stabilization
Underground voids are caused by a combination of the watermain system exfiltrating into the ground mining the soil and infiltrating into the sewer system trough defects such as cracks, holes, offset joints or lateral services connections creating underground voids and road sink holes. To cure such problems, we inject injecting environmentally friendly semi-structural cimentitious or polyurethane expandable grouts from inside the sewer system or from the surface depending on size of the void.
