LADOTD PCC Pavement Inspection Practice Test

Surface texturing is applied to fresh concrete to create a rough pattern that improves skid resistance and helps with drainage once the pavement hardens. The typical method uses a carpet drag with a tining device: as the carpet drag is pulled across the surface while the concrete is still plastic, the attached tines press and imprint a uniform texture into the surface. This combination produces consistent ridges and pores that remain after curing, giving good friction for tires in wet or dry conditions. Brooming creates a different, brushed texture and isn’t the same controlled texture pattern described here. Sandblasting would roughen or erode the surface rather than set the intended texture, and a polymer coating adds a layer on top rather than forming the necessary surface texture. So the carpet drag with a tining device is the method that achieves the intended surface texture.