Grinding concrete is performed on rough concrete surfaces to come up with a smooth, polished texture. It can be done whether the concrete is wet or dry. For some contractors, grinding wet concrete is better to avoid producing dust that could negatively impact the health of those around. Abrasive tools like a diamond grinder or angle grinder are used to refine concrete surfaces. 

It is important to grind concrete to support the smooth installation of top flooring. A rough or uneven concrete makes it hard for any alternative flooring to be installed on top of it. It prepares the concrete floor for the application of tiles or hardwood. A smooth concrete floor ensures the quality and longevity of the floor. Aside from getting rid of any imperfections and roughness, there are many reasons why you should grind your concrete surfaces. A pre-cast concrete project requires grinding the concrete surface while in concrete flooring, grinding is important to get rid of any remaining paint, epoxies, or damages. 

Grinding is not only done for the concrete floor, but it is also applicable to other types of concrete construction like walls, homes, buildings, walkways, and countertops. You can make any surface of your concrete look finer by grinding and polishing. If you are planning to polish your concrete surface, remove paint stains or uneven coatings, or simply prepare the concrete for an alternative finishing touch, it’s best to have the right tools and knowledge on how to do the work by yourself. Read the following details on how to properly grind your concrete and the tools that you will need in the process.  

Concrete Grinder 

A concrete grinder is a finishing tool that is used to grind and level the concrete surface that results in a smooth finish. There are three reasons why you should use a concrete grinder – extreme coating removing, surface preparation, and concrete polishing. A concrete grinder is different from grinders used for granite and marble as it is more sturdy and uses more power to provide greater sliding friction that is important for concrete. 

Meanwhile, a diamond grinder is a machine that is composed of sanding pads of different sizes anchored to the abrasive discs or rotating blades. This type of grinder, which is known as the “diamond”, also has diamond particles on it. This synthetic diamond differs in size, strength, and shapes. It is also is known in terms of grit sizes or grit numbers. This type of grinder made it possible to produce a surface that is almost close to marble to terrazzo-like appearance. 

5 Easy Steps To Grind A Concrete 

  1. Read carefully and follow the ground rules for handling grinding tools or machines. Learn how it operates and the safety measures that come with it. Remember that concrete grinders are powerful machines. Knowing how to properly operate it helps you avoid any accident. 
  1. Thoroughly check every part of the machine. Make sure that there is no damage to it, and all cables are plugged correctly. 
  1. Once your machine or tool is all set, the next move is the prepare the concrete surface that you intend to grind. Check for any obvious cracks or humps. If you find one, you must repair it first. Also, if there are any existing coating or sealer remnants, stip them off before grinding. 
  1. Once your concrete surface is ready, it’s time to use your concrete grinder. Work your way through it, polishing every corner. You can start from the coarser grit to finer grit, depending on your preferred outcome or finish. 
  1. After grinding the entire concrete surface, the final step us to use your preferred sealant to cover and protect it from different elements like extreme weather, chemicals, oil, staining, and moisture. 

Concrete grinding is a straightforward task. The only challenge that comes with it is the proper handling of the grinder. The concrete grinder is robust and powerful therefore, proper handling and care are important while operating it. All in all, everything can be done even by an inexperienced person.