Why Chemical Grouting?
Chemical grouting is a proven process that has been successfully used for more than 40 years. The process preserves existing sewer systems by stopping groundwater infiltration and stabilizing the bedding soil around structures. It also stops migration of wastewater and groundwater through sewer bedding and prevents the washing of fines from the bedding soil into the system. Chemical grouts immobilize water in the voids between soil grains and particles. In this way, they stabilize the soil and prevent the flow of groundwater through the soil and into the sewer through joints, connections or cracks. Chemical grout is not cement that fills a void or crack and then hardens to form a new structure. Instead, it is a low-viscosity liquid that, when applied, flows through the sewer joint, connection or crack into the bedding soil around the area of injection. Low viscosity is what makes chemical grouts so effective in soil stabilization and sealing. Once injected, the chemicals easily flow be
