Why is the bed of the delivery truck raised to break the bed before dumping into the paver hopper?

Raising the bed of the delivery truck serves the crucial purpose of ensuring that the material flows smoothly into the paver hopper. By adopting this method, the material is essentially directed towards the hopper in a way that minimizes the risk of segregation. Segregation occurs when different sizes or types of materials separate from one another, which can lead to inconsistencies in the paving mix. When the bed is raised, the gravitational force helps to distribute the materials evenly, flooding the hopper and enabling a more uniform mix, which is vital for the quality of the paving job. This technique is important, especially in projects where maintaining the integrity of the material is key to achieving the desired results in pavement performance and durability.