What is the internal angle for gyratory compaction?

The internal angle for gyratory compaction is specifically set at 1.16 degrees with a tolerance of plus or minus 0.02 degrees. This angle is critical because it influences the compaction process, which is vital in achieving the desired density and properties of asphalt mixtures. The gyratory compactor simulates the compaction that occurs in the field, and the internal angle determines the effectiveness of this simulation.

Choosing the correct angle is essential for ensuring that the asphalt mix reaches the proper density and performance characteristics necessary for durable pavement. This angle, along with the specified height of the compactor, helps to produce a reliable and repeatable means of assessing the quality and performance of the asphalt mixtures.