Method for preparing pavement base material by stabilizing iron tailings by novel soil stabilizer

The invention discloses a method for preparing a pavement base material by stabilizing iron tailings by a novel soil stabilizer. The preparation method of the novel soil stabilizer comprises the following steps: diluting a TerranZyme bio-enzyme soil stabilizer with water by 10-100 times, adding solid CaCl2 with mass being 5%-10% that of diluting liquid and acidified water glass with mass being 5%-10% that of the diluting liquid, heating to 30-50 DEG C by microwaves, reacting for 20-60 minutes, and performing mixed modification to obtain the novel soil stabilizer. The novel soil stabilizer can be used for stabilizing the iron tailings to prepare the pavement base material. The method for preparing the pavement base material comprises the following steps: uniformly mixing cement, gravel and the iron tailings with the novel soil stabilizer according to a mass ratio of 5: 30: 68: 2 to obtain an inorganic mixture, adding 1.5kg/m of polypropylene fibers, and uniformly mixing to obtain the pavement base material. All technical indexes of the pavement base material meet the national standard requirements, the utilization rate of the iron tailings is high, the environmental problem caused by piling of a large quantity of the iron tailings and mining of pavement gravel materials is solved, and economic benefits are obtained.