抄録
Ratio of mixed mortar, adhered mortar, and residual lumps of mortar in recycled coarse aggregate is used as an indicator, and the factor influencing the properties of recycled coarse aggregate concrete is examined. As the result, it is confirmed that compressive strength decreased and length change increased with increasing each ratio. Especially, residual lumps of mortar have a profound influence on them. In addition, amount of residual lumps of mortar in mixed mortar have a profound influence on the properties of recycled coarse aggregate concrete that used recycled coarse aggregate with different original concrete.
