In Step 3 for figuring the tack spread rate, what is the first action?

In Step 3 for determining the tack spread rate, the first action involves using the distributor chart to find gallons used. This step is critical because understanding how much tack oil has been dispensed is necessary for accurate calculations related to the spread rate. The gallons used provide a baseline to assess how effectively the tack coat is being applied, which is essential for ensuring proper adhesion of the asphalt layers.

Knowing the amount of material used also allows for subsequent calculations involving the area that this material will cover (square footage), temperature adjustments, and proper estimates of the length of the tack shot. This initial step sets the groundwork for the rest of the process by establishing the quantity of tack oil before any further calculations or adjustments are made.