When it comes to concrete walkways, the most common finish is the broom finish. This textured surface provides excellent traction and grip, making it safer to walk on, especially in wet or icy conditions. However, some homeowners may prefer a smoother finish for aesthetic purposes or to match the surrounding environment. In this article, we will explore whether it is possible to apply a smooth finish to a broom-finished concrete walkway and the steps involved in achieving this desired result.
Understanding the Broom Finish:
Before discussing the process of achieving a smooth finish, it is essential to understand the characteristics and benefits of the standard broom finish. A broom finish provides a textured surface that helps prevent slipping, making it an excellent choice for outdoor walkways. The broom finish is created by dragging a broom across the freshly poured concrete, leaving behind fine lines or grooves. This texturing process creates an aesthetically pleasing and slip-resistant surface.
Assessing the Feasibility:
The first step in determining whether you can apply a smooth finish to a broom-finished concrete walkway is to assess the existing surface. If the broom finish has been recently applied or is in good condition, it is possible to achieve a smoother finish. However, if the broom finish is old, extensively damaged, or has deep grooves, it may be challenging to obtain a truly smooth surface without significant effort and potential drawbacks.
Preparing the Surface:
To achieve a smooth finish on a broom-finished concrete walkway, the surface needs to be adequately prepared. Begin by thoroughly cleaning the walkway to remove any dirt, debris, or stains. Use a pressure washer or a stiff-bristle brush along with a concrete cleaner to ensure a clean surface. Once the concrete is clean and dry, assess the condition of the broom finish. If there are any deep grooves or damage, consider filling them with a suitable concrete patching material and allowing it to cure according to the manufacturer’s instructions.
Applying a Skim Coat:
To smooth out the broom finish, a skim coat needs to be applied. A skim coat is a thin layer of material that goes over the existing surface, providing a smoother finish. In this case, a polymer-modified cement-based overlay is recommended. This type of overlay is designed to adhere well to the existing concrete and provide a smooth, durable finish.
Start by mixing the polymer-modified overlay material according to the manufacturer’s instructions. Apply the skim coat evenly to the broom-finished surface using a steel trowel or a squeegee. Work in small sections, ensuring a consistent thickness across the area. Once the entire walkway is covered, use a long-handled trowel to further smooth out the surface, removing any imperfections or trowel marks.
Finishing Touches:
After applying the skim coat, allow it to cure for the recommended time, which can vary depending on the product used. Once the overlay has cured, inspect the surface for any irregularities or imperfections. If necessary, lightly sand or buff the surface by hand to achieve a smoother texture. Finally, apply a concrete sealer to protect the newly finished surface and enhance its appearance.
While a broom finish is the standard choice for concrete walkways, it is possible to apply a smooth finish if desired. By properly preparing the surface, applying a skim coat using a polymer-modified overlay, and making finishing touches, a broom-finished concrete walkway can be transformed into a smoother surface while retaining its functionality and durability. Remember to assess the feasibility of achieving a smooth finish based on the condition of the broom finish, as it may require additional effort and may have some limitations.