Chemical Grouting
Chemical grouting is a technique used in both geostructural and groundwater applications. Permeation grouting can be used to fill void spaces in soils in order to increase soil bearing capacity and also to control/arrest groundwater flows. Polyurethane and other chemical grouts can be used to seal cracks/fissures in structures and rock masses, and also as a means of filling voids underneath and/or jacking up existing concrete slabs.
Phoenix recently utilized polyurethane chemical grouting to seal off numerous active leaks through the face of a granite block dam. The rapid foam expansion of the hydrophobic chemical (triggered by a proportioned chemical catalyst) allowed us to quickly and cost-effectively repair the dam without any upstream water diversion or other costly preparatory work.
Typical Applications for Chemical Grouting
Soil & Rock Mass Stabilization
Groundwater Control
Underpinning
