Soil & Rock Stabilisation By PU Grouting

Fine sandy soil strata need the consolidation to improve its soil bearing capacity (SBC). Soil stabilization is the process of strengthening loose soils during the construction of highways, helipads, golf courses and shoring excavations when an ultra low viscosity, hydrophobic, polyurethane grout is injected into unstable soils and reacts with ground moisture to encapsulate loose soils and sands, thus forming a solid, stable mass. PU grouts will increase the soil’s compressive strength and stop the settlement of structures and consolidate soils for mining or tunnel applications. PU injection grouting helps in consolidating the strata ahead of the excavation, thus helping in avoiding ground collapse, intercepting water paths and hence speedy and economical process of excavation. This is significantly used for stopping water leaks and making the strata firm. Consolidated soil strata allow safe and effective excavation of the substrate without the fall of adjacent soil.

Similarly, rock strata become unstable due to fissures or micro cracks and the interconnected micro cracks results in water seepage which will lead to collapsed and non stable strata. Rock stabilization is done by injecting a high strength polyurethane grout that penetrates into the fissures of the rock face, thereby holding together the fragmented structure as one mass and the strata becomes water tight and strong.