Abstract
The amount of discharge and recycling of concrete waste (CW) and asphalt concrete waste (ACW) was predicted until 2020 in Yamaguchi prefecture. Although CW discharge and recycled crushed stones (RCS) supply is going to increase because of high rate of building demolition, RCS will become overstock influenced by decreasing public works. On the other hand, ACW discharge and recycled aggregate for asphalt mixture (RAAM) supply is going to change parallel based on governmental works investment. Recycling rate of RAAM can be increased even though it becomes overstock. Reduction of virgin material and expansion of recycled material should be important for sustainable recycling system.