Mixed material for pervious area and construction method thereof

The invention discloses a novel mixed material for a pervious area (pavement), applicable to such urban slow-moving traffic roads as urban greenway, sidewalk, sidewalk (roadway) in residential area, parking lot and playground as well as open activity space, and a construction method of the mixed material. The novel mixed material is prepared on the basis of properties of yellow phosphorus residue (phosphorous slag) by mixing proper amounts of phosphorous slag powder, lime and gypsum. Raw materials in various proportions can be mixed depending on different requirements of functions in various layers of the ground, so that surface layer of the ground, while satisfying a requirement on surface density of urban slow-moving traffic load effect, can still keep porosity at 18-20%, and rainfall can rapidly permeate into a structural layer through the surface layer and basic layer. The structural layer can still keep high porosity, thus serving as a reservoir layer. Rainfall permeating into the surface layer can be co