Here, "waste rock wool for recycling" refers to rock wool products and materials containing rock wool that have lost their original functionality due to construction offcuts, removal, aging, or performance degradation during applications such as building insulation, industrial thermal insulation, acoustic sound absorption and noise isolation, and other uses, or although not entirely devoid of usable value, have been discarded. After collection, crushing, sorting, and impurity removal, this type of waste rock wool can be reused as raw material for mineral wool in rock wool production, or enter recycling pathways as admixtures in construction materials or fillers in road engineering.