Chemical grouting is the introduction and permeation of chemical grout fluid into soils to produce stone like masses that are capable of carrying loads of the structures. Water control chemical grouting is the permeation of sandy, granular or gravel soils with chemical grouts that completely fill voids in order to control water flow. Chemical grouting is extensively used in leaking subterranean structures.Chemical grouting improves the strength and rigidity of the soil. Chemical grouting will also limit ground movement during excavation and construction. Chemical grouting applications include, but are not limited to: For lagging operation, support of footing, grouted tunnel support, pit excavation below water, grouted cut-off wall, grouted pipeline support.