What is the role of a paver in asphalt construction?

In asphalt construction, the role of a paver is specifically to lay asphalt on the road surface. This machine is crucial in the paving process as it spreads, levels, and assists in compacting the asphalt mixture, ensuring a smooth and uniform finish. The paver works continuously, moving forward as it dispenses heated asphalt, which is essential for proper adhesion and performance of the pavement.

The other options represent different aspects of asphalt construction but do not define the specific role of a paver. For instance, transporting asphalt to the site is done by dump trucks rather than the paver itself. Testing asphalt hardness is typically performed using specialized instruments rather than a paver. Similarly, compacting soil before laying asphalt involves different types of equipment, such as rollers or compactors, rather than the paver, which is focused on the asphalt placement. This distinction highlights why the correct answer accurately captures the primary function of a paver in the paving operation.