Shotcrete springback inhibitor and using method thereof

The invention discloses a shotcrete springback inhibitor and a using method thereof. The springback inhibitor is prepared by mixing the following raw materials: 50%-60% of a composite admixture, 15%-30% of nano calcium silicate, 15%-25% of an efficient water reducing agent, 1%-5% of redispersible latex powder, 1%-5% of a water retaining agent, 1%-5% of a thickening agent and 0.5%-1.0% of an exciting agent. When shotcrete is prepared, cement, sand, stone and the springback inhibitor are added into a stirrer together to be stirred; the mixing amount of the springback inhibitor is 3-8% of the total consumption of the cementing material. According to the shotcrete springback inhibitor and the using method thereof of the invention, under the condition that a water reducing agent is not added and the mixing amount of an accelerator is reduced, the springback rate of the shotcrete is greatly reduced, the working performance of the shotcrete is improved, meanwhile, the mechanical property andthe durability are improv