Crack pouring adhesive for concrete cracks and application of crack pouring adhesive

The invention discloses a crack pouring adhesive for concrete cracks and an application of the crack pouring adhesive. The crack pouring adhesive for the concrete cracks consists of a component I and a component II which are independently packaged, and the mass ratio of the component I to the component II is (5-2):1; the component I consists of raw materials in parts by mass as follows: 70 parts of an E-51 bisphenol A liquid epoxy resin, 30 parts of a 6002 bisphenol A liquid epoxy resin, 15-30 parts of a toughening agent,5-15 parts of benzyl glycidyl ether and 5-15 parts of benzyl alcohol; and the component II consists of 30-65 parts of a curing agent, 5-10 parts of diluent and 0.5 part of a sticking accelerating agent; the curing agent consists of 30-50 parts of a polyether amine curing agent and 0-15 parts of a phenolic amine epoxy curing agent; and the diluent is benzyl alcohol. The crack pouring adhesive for the concrete cracks is a solvent-free double-component low-viscosity crack pouring adhesive and ca