Concrete grinding or sidewalk cement grinding is one method to remove sidewalk trip hazards typically up to 1 1/2″ in height where sidewalks have been lifted by tree roots, shifting soil, etc. Concrete grinding will remove the top finished layer of cement and leave an exposed aggregate finish where the concrete trip area has been removed, but will also bring your sidewalk trip and fall hazard back into compliance.
Concrete Grinding is a modern technique to eliminate trip and fall hazards. The process uses a Scarifier Concrete Grinder and Dry Surface Grinder to sand down the raised side of two joining sections of concrete. Within a matter of minutes, the raised side can be ground down permanently eliminating the "trip and fall hazard".
DIY Sidewalk raised crack, trip hazard repair by grinding down, using Hitachi angle grinder with DeWalt masonry blade and an Integra diamond cup wheel
The 40-grit tool is for standard concrete grinding and is ideal for grinding concrete that is medium-hard. If you're grinding a concrete floor that is extremely hard, consider using a 14/16-grit metal bond tool. When rough grinding, begin from one side and grind from west to east across the entire concrete floor.
Perfect for indoor surface grinding applications, including garage, kitchen, basement or patio Grinds down concrete high spots, removes sealers and thin mil paints, removes mastics and preps floors to accept new coatings Conveniently plugs into any standard 110V outlet
You can see the embedded diamonds on the surface. Before we actually worked on my sidewalk, we took a little time to test the 7" angle grinder with the diamond cup wheel on a block of concrete. It is hooked up to the Makita dust vac to help control the harmful concrete dust. The grinder with the wheel was surprisingly comfortable to manage.