What does "nulling out the screed" refer to?

"Nulling out the screed" refers to adjusting the screed angle so that it rests flat on starting blocks. This process is essential for ensuring that the screed is set correctly to produce a level surface during the paving operation. When the screed is properly nulled out, it allows for uniform material distribution and accurate control over the depth of the paving material being laid down. This is critical for achieving the desired thickness and quality of the pavement.

Adjusting the height of the paver, calibrating the paver's speed, and checking the temperature of the mixture are all important tasks in the paving process, but they do not specifically relate to the function of nulling out the screed. The screed's flat position directly influences the functionality and performance of the paving equipment, making it a pivotal aspect of paving operations to ensure quality results.