waste asphalt for recycling' refers to asphalt materials that have lost their original functionality--or, although not entirely losing their utility value, have been discarded--due to aging, damage, renovation, or failure to meet quality standards in applications such as highway paving, building waterproofing, roofing, and other engineering uses. After collection, crushing, heating, and mixing with rejuvenating agents, this type of waste asphalt can be processed and reused as reclaimed asphalt in highway resurfacing, repair of building waterproofing layers, or in the production of other construction materials, thereby achieving resource recovery and recycling.