If you are wondering, what is polished concrete? Here are some of the basic terms used to define the process: Dry polishing, Chemical densifier, Diamond tooling, Aggregate exposure, and the benefits of each. After reading this article from a trusted provider of epoxy flooring services, you will have a better idea of what this process is all about. And now you’ll be able to ask yourself, what is it good for? Read on to find out.
Dry Polishing
There are many benefits to dry polishing concrete over wet grinding. While the dry method eliminates unsightly scratches, the floor can become extremely hot. Wet grinding also eliminates the need for respirators and vacuums, since it eliminates airborne dust. This method of grinding also protects the workers from toxins, such as silicon dust. Wet grinding was originally invented before the dry method. In locations with a plentiful supply of water, it is a natural choice.
When dry polishing concrete, the grinding disks are designed to withstand the friction and heat generated during the process. The tools used for dry polishing are equipped with a dust containment system, so the process is more hygienic. In addition, this method promotes a safer workplace because there is no water involved. In addition, the process is fast, and CPC Floor Coatings technicians will work in a controlled environment.
Densifiers are reactive chemical solutions that strengthen substrates, reduce efflorescent dust, and increase gloss. Low-viscosity densifiers penetrate concrete slabs and react with calcium and free lime to produce additional cementitious materials. The additional cementitious material enhances the polishability of the concrete. While polishing, it is important to be aware of potential hazards that can arise. In addition to dust and oil, concrete densifiers can also enhance the density and hardness of the substrate.
The process of dry polishing begins with a coarse, 30/60-grit diamond and increases to 1600 or 3000 grit. During the process, a densifier is added to the concrete, which hardens it. It is also possible to use grouting chemicals to fill imperfections and holes. Finally, an impregnating polish guard is applied to the concrete to prevent spills, oil, and grease from entering the pores of the concrete.
If you decide to go with a concrete polishing contractor, be sure to consider the size and type of project. A smaller concrete polishing contractor is likely to be more affordable but will have to learn all of the necessary skills to make the floor look good. Smaller concrete polishing contractors will have to learn from a larger company, as it has much more control over the scope of the project. For a national or large-scale job, a larger company may be recommended by the vendor.
Chemical Densifier
A chemical densifier in polished concrete is applied to the concrete’s surface in order to increase its density and protect it from wear. The process takes several months to complete and requires proper surface preparation. In order to maximize the densification process, the floor must be thoroughly cleaned and dry prior to densification. Depending on the densifier used, the application can be by spray, broom, or squeegee. The densifier should be applied to the surface to reach its saturation point. Most densifiers are applied to the refusal.
When used in polished concrete, the chemical densifiers react with the free lime in the concrete to create calcium silicate hydrate. The result is a denser concrete surface, which is ideal for floor applications. In addition to making the surface more durable, densifiers also reduce pitting and prevent floor dusting. As a result, they are practically a requirement for polished floors in commercial applications. Here’s how they work:
The chemical densifier in polished concrete should be applied to the surface when the concrete is well-cured, usually 14 to 28 days after placement. The chemical reaction will occur faster if the concrete is well-hydrated. Nevertheless, densification can also occur when the concrete is newly placed, giving it early protection against staining and discoloration from ongoing construction. While this method may take longer, it can provide the necessary densification to the concrete surface.
A chemical densifier in polished concrete creates a non-membrane-forming barrier between the polished surface and the surrounding environment. The densifier creates additional cementitious material to address the problem of bleed water. It also reduces permeability and dusting, which means less maintenance time. In turn, it also improves the overall aesthetics of the floor. The use of a densifier in polished concrete is advantageous to the project owner and contractor.
There are two generations of densifiers in the market. First-generation densifiers are sodium, potassium, and magnesium silicate. They react with calcium hydroxide in concrete to provide hardness. The second-generation uses lithium silicates, which are more effective because they have less viscosity and are not prone to whiting or hazing. There are several advantages and disadvantages to each type of densifier, and it is vital that you understand which one is right for your particular situation.
Diamond Tooling
Selecting the best diamond tool for your project is vital to your project’s productivity and cost-effectiveness. A good supplier will have the knowledge and experience necessary to diagnose and correct symptoms on any removal application. Choosing a tool with low dead areas is especially important, as this can lead to uneven polishing. If you have never used diamond tools before, it can be a challenge to find the right one. In the meantime, you can measure how they perform and compare them with other brands to ensure you are getting the best value for your money.
Industrial-grade diamonds are embedded in a matrix, either metallic, resinous, or ceramic. This tooling is attached to rotating heads and helps to refine the concrete substrate. The diamonds themselves can reach levels as high as 70 GU and can be used for the first and second cuts on smooth surfaces. Abrasive pads can also be used for this purpose. Diamond tooling is also used as a transition tool and can be the first cut in smooth concrete surfaces, and it is used for the intermediate stages between metal and resin-bond tools.
To find the right diamond tooling for your project, you need to know the hardness of the concrete surface. This will help you to choose the best diamond combination for the specific job. Using the right tooling for the right concrete will also help you to get the perfect finish for your project. The right tooling will be able to create a smooth finish. In addition, it can help to know how much work each diamond needs in a specific application.
Diamond tooling for polished concrete is used in several different processes, including grinding and polishing concrete. In addition to polished concrete, diamond tooling can be used to prepare a surface for a resin or metal bond and to repair terrazzo and ceramic surfaces. Using diamond tooling will ensure a smooth and polished surface and save you time and money in the long run. With its many benefits, diamond tooling is the ideal choice for your next project.
Aggregate Exposure
Decorative concrete can be made with exposed aggregate, which is often compared to polished stone. There are several types of decorative aggregate, from natural to manufactured, and the process can produce an endless array of color and texture variations. Once the concrete has been laid, decorative aggregate is spread on the surface using afloat. The concrete is then finished by polishing or inoculating the surface to produce different effects and distinct designs.
Once the concrete has been polished, it can be re-surfaced to add a new surface or enhance the existing surface. Using this method, you can create a secluded paradise, whether you’re looking for a patio or pool deck. Exposing the aggregate is also ideal for paving and landscaping projects, as it offers a non-slip surface and is attractive in both indoor and outdoor areas.
If you’d like to create a unique floor for your home, consider illuminating the aggregate. Illuminating concrete creates a natural glow after the sun goes down. It is especially good for outdoor areas, driveways, and pool surrounds. It is usually hand-seeded before the concrete is laid. It is best suited to areas that receive light energy. However, the effect may vary from product to product.
Exposed aggregate is just as durable as a plain hard surface and can withstand a lot of pressure. As long as you don’t use harsh chemicals or high-pressure washers to clean it, exposed aggregate will maintain its appearance for many years to come. Compared to polished concrete, exposed aggregate will only need a sealant every five years. However, proper care will extend the life of your concrete floor. It is important to note that this method does not require polishing.
Unlike ordinary polished concrete, exposed aggregate can be customized. The size and color of exposed aggregate will depend on your preferences and the landscape and architecture of your home. The contrasting colors and styles will make the floor stand out. It can even be made more unique by using a mix of colors and patterns. If you’re unsure what kind of look you’re after, contact a concrete polishing specialist today.
About Author
