What is the target specific height for pills in gyratory compaction?

The target specific height for pills in gyratory compaction is set at 115.0 mm with a tolerance of plus or minus 5 mm. This height is essential for ensuring uniformity and consistency in the compaction of asphalt mixtures. Gyratory compaction simulates the densification process that occurs during the construction and service life of asphalt pavements.

By establishing a precise target height, the process promotes the proper evaluation of the mixture's properties, including its density and voids structure. Ensuring that the samples used in testing adhere to this standard allows for better comparability of results and a more reliable assessment of material performance. The defined tolerance range of +/- 5 mm provides flexibility to accommodate variations in material behavior while still ensuring adherence to the ideal specifications, crucial for quality control in asphalt production. This standard ultimately supports the durability and long-term performance of asphalt pavement.