| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a production method for regenerated aggregate which enables the utilization as either aggregate for concrete or asphalt by stripping mortal coating and pitch coating by means of grinding even in the case of using concrete waste material or asphalt waste material as raw material. <P>SOLUTION: In this method, the raw material comprising concrete waste material or asphalt waste material is crushed to a prescribed particle size or less, the raw material which is crushed to the prescribed particle size or less is ground and, thereby, a regenerated aggregate is produced. Therein, the grinding of the raw material is performed by a grinder which is composed of a drum body, a rotation shaft penetrating the inside of the drum body in the shaft direction of the drum body, partition members which are attached to the rotation shaft by keeping an inclined angle, partition the inside of the drum body and form plural grinding chambers mutually communicated in the drum body, and charged material for grinding which is charged into the grinding chambers, repeats elevating and falling movement by rotating the partition members and reciprocatively moves in the shaft length direction of the rotation shaft. <P>COPYRIGHT: (C)2003,JPO</p> |
