Recycled powder hydraulic roadbed filling material and preparation method thereof

The invention relates to a recycled powder hydraulic roadbed filling material and a preparation method thereof. According to the novel road material, a novel developed stabilizer is adopted to modifyand stabilize recycled powder produced by an asphalt mixing station, so that performance indexes such as mechanical performance and the like of the recycled powder accord with those of a traditional road roadbed filling material. According to different mixing amounts of the stabilizer and the recycled powder, the filling material can be selectively used for roads of different grades. The recycledpowder is powdery waste produced by production of an asphalt mixture mixing station, and investigation shows that 3%-5% of the recycled powder can be produced by the asphalt mixing station according to different types of produced asphalt mixtures. The quantity of the recycled powder is huge, and the improper treatment causes great pollution to the surrounding environment. The recycled powder is modified into the roadbed fi