Mortar for tunnel corrugated plate reinforcing structure

The invention provides mortar for a tunnel corrugated plate reinforced structure, which comprises sulphoaluminate cement and light fine aggregate, and the mass ratio of sulphoaluminate cement to lightfine aggregate is 1-2:1; and the light fine aggregate is hollow glass beads subjected to hydrophobic treatment. According to the mortar for the tunnel corrugated plate reinforcing structure, sulphoaluminate cement is adopted as a cementing material, hollow glass beads are adopted as light fine aggregate, the specific gravity of the mortar material for the tunnel corrugated plate reinforcing structure is greatly reduced, the compressive strength is high, and the mortar material has the advantages of light weight and high strength; meanwhile, the hollow glass beads subjected to hydrophobic treatment are low in water absorption rate, so that the water absorption rate of the mortar for reinforcing the structure is reduced, the weight of the mortar material cannot be increased due to water absorption in the later serv