The invention relates to a grinding wheel capable of detachably connecting abrasive segments to a disc in a sliding manner and individually replacing the abrasive segments. According to the grinding wheel, when the abrasive segment is worn away or inferior as it is used for a long time, it has only to replace the corresponding abrasive segment only. Accordingly, an economical efficiency is high. The invention also relates to method for connecting an abrasive segment to a disc, and to such an abrasive segment.