Epoxy grouts are tremendous for securing anchors and the like in concrete, but sometimes it is necessary to remove the anchor; then the permanence of the epoxy grout becomes a major problem. Any suggestions ?
Short of extensively damaging the surrounding concrete the one fairly certain method of undoing the permanence of an epoxy grouting job is with the application of heat. A welding torch or similar high temperature heat source applied to the anchor will usually cause the epoxy grout to fail dramatically.
Safety precautions should be observed, however, as the epoxy grout may tend to explode in this operation. A sturdy screen should be placed between the operator and the area to which the heat is being applied.