Enter the air temperature and wind speed into the calculator to estimate the asphalt temperature. This tool helps in determining the appropriate conditions for paving and road maintenance.

Asphalt Temperature Formula

The formula used to estimate the asphalt temperature is as follows:

AT = AT_{air} + (C * WS)

Variables:

  • AT is the estimated asphalt temperature (°F)
  • AT_{air} is the air temperature (°F)
  • WS is the wind speed (mph)
  • C is a constant representing the effect of wind speed on asphalt temperature

To estimate the asphalt temperature, add the product of the wind speed and a constant to the air temperature. The constant used in this formula is an approximation and may vary based on environmental conditions.

What is Asphalt Temperature?

Asphalt temperature is the temperature of the asphalt surface, which can differ from the air temperature due to factors like solar radiation, wind speed, and material properties. Accurate measurement or estimation of asphalt temperature is crucial for paving operations, as it affects the curing time, compaction, and overall quality of the asphalt pavement.

How to Calculate Asphalt Temperature?

The following steps outline how to estimate the Asphalt Temperature.


  1. First, measure the air temperature (AT_{air}) in degrees Fahrenheit.
  2. Next, measure the wind speed (WS) in miles per hour.
  3. Use the formula AT = AT_{air} + (C * WS) to estimate the asphalt temperature (AT).
  4. Finally, enter the air temperature and wind speed into the calculator to get the estimated asphalt temperature.

Example Problem:

Use the following variables as an example problem to test your knowledge.

Air temperature (AT_{air}) = 75°F

Wind speed (WS) = 10 mph

Using the example formula, the estimated asphalt temperature would be:

AT = 75 + (0.2 * 10) = 77°F