| abstract |
The invention relates to a high-strength flame-retardant asphalt paving material and a preparation method thereof, belonging to the technical field of building material preparation. In the invention, medical stone is used as raw material, firstly rotted by acid solution and then frozen and pulverized by liquid nitrogen, then the pulverized material is modified by surface chelation to deposit nano-scale aluminum hydroxide, and finally modified with organic phosphonic acid , the self-made asphalt additive is prepared, and it is mixed into the base asphalt to finally obtain a high-strength flame-retardant asphalt pavement material. Broad application prospects. |