Yes, composite decking can be glued to concrete. The process involves using a high-quality adhesive designed specifically for outdoor applications. Before gluing, ensure that the surface of the concrete is clean and free from debris. Apply the adhesive in a consistent and even manner, ensuring that it covers the entire surface area of the composite decking. Press the decking firmly onto the concrete, ensuring a secure bond. Allow the adhesive to dry completely before walking or placing any weight on the decking. It is important to note that gluing composite decking to concrete is a permanent solution and may not be easily reversible or adjustable. Therefore, it is crucial to plan and ensure accurate placement before proceeding with the gluing process. Following these steps will help you achieve a strong and long-lasting bond between the composite decking and the concrete surface.