Low viscosity, two-component, solvent-free, epoxy resin grout for injecting cracks with thickness of 0.1 to 5.0 mm by using injection and grout pumps. It is used for injecting cracks in substrates of concrete, reinforced concrete, stone and cement mortar. It has high compressive strength and chemical and mechanical resistance. It is used for repairing massive concrete structures, reservoirs, bridge structures, silos, cooling towers, stone structures, etc.