Hydraulic fiber asphalt concrete with low slope flow value and preparation method thereof

The invention belongs to the technical field of power station building materials, and particularly relates to hydraulic fiber asphalt concrete with a low slope flow value and a preparation method thereof. The hydraulic fiber asphalt concrete with the low slope flow value is prepared from the following materials in parts by weight: 34 to 43 parts of asphalt; 220 to 260 parts of coarse aggregate; 240 to 280 parts of fine aggregate; 50 to 80 parts of filler; and 1-4 parts of fiber. The preparation method comprises the following steps: modifying basalt fibers, preparing materials according to the ratio, preparing a dry material, heating the modified asphalt according to the ratio to 160-170 DEG C, adding the modified asphalt into the prepared dry material, and stirring for 3-5 minutes. The fiber asphalt concrete can effectively improve the stability of a high-temperature slope and prolong the service life of an anti-seepage layer structure, the low-temperature performance, the deformation adaptability and the dur