True or False: HMA can be effectively placed on wet surfaces.

Hot Mix Asphalt (HMA) should not be placed on wet surfaces, making the statement false. The presence of moisture on the underlying surface can lead to several issues that compromise the quality and durability of the asphalt layer. When HMA is applied to a wet surface, it can result in weak bonding between the asphalt and the substrate, potentially causing the asphalt to peel or detach over time. Additionally, moisture can create voids or air pockets within the mix, leading to a weakened structure that is prone to damage from traffic and weather.

The integrity of the asphalt’s performance is significantly affected by the conditions of the surface on which it is placed. Proper surface preparation is essential, ensuring the substrate is clean and dry before the application of HMA. Thus, the notion that HMA can be effectively laid on wet surfaces is incorrect, reinforcing the importance of adhering to proper installation practices in asphalt pavement construction.