In Step 2 for figuring the tack spread rate, how do you calculate the square yards?

To determine the square yardage for calculating the tack spread rate in asphalt paving, the correct method involves using the dimensions of the area being covered with tack coat. The formula involves the measurements in feet converted to square yards.

When using the formula "Feet x width / 9," foot measurements are multiplied by the width of the area. Since there are 9 square feet in one square yard, dividing the product of length and width by 9 effectively converts the area from square feet to square yards. This conversion is essential in asphalt paving to ensure that the tack coat application rates are expressed in a format that aligns with industry standards, as materials are often quantified in square yards.

This method ensures accurate measurements when calculating the amount of tack coat required, which is crucial for effective adhesion of the asphalt layers. It highlights the importance of understanding dimension conversion in the context of paving work, as proper application rates can significantly influence the performance and longevity of the asphalt surface.

The other options involve either incorrect dimensions (like height) or unnecessary multiplications by 9, which would not result in the proper calculation of area in square yards. The focus here should always remain on using the appropriate linear dimensions to achieve accurate area measurements in paving projects.