Why is it important to set the nozzles at the proper angle during asphalt application?

Setting the nozzles at the proper angle during asphalt application is crucial for ensuring proper overlap. Proper overlap is vital because it allows for a uniform and consistent application of asphalt, leading to a stronger bond between layers. When the nozzles are appropriately angled, the asphalt is spread evenly across the surface, which helps to prevent issues such as weak spots or gaps that could compromise the integrity of the pavement. This uniformity is essential for achieving the desired performance and longevity of the asphalt layer.

While other aspects like temperature management, material usage, and traction can be influenced by nozzle angle, the primary goal of ensuring adequate overlap directly contributes to the quality of the asphalt application, making it the most critical factor in this context. Properly overlapping the asphalt layers contributes to a robust structure that can withstand traffic and environmental stresses over time.