AASHTO TP 117-15 (2021) PDF Download

The AASHTO TP 117-15 (2021) standard outlines the procedure for assessing the voids of dry compacted filler using a Rigden Apparatus. The primary objective of this test is to measure the percentage volume of free asphalt that a filler is capable of carrying. This method is applicable to both natural and manufactured fillers.

The standard provides a standardized process for conducting the test, ensuring consistency and accuracy of results across different laboratories. By following this method, engineers and technicians can determine the voids in the compacted filler, which is a crucial parameter for pavement design and construction. The test involves compacting the filler material with a specified load, measuring its volume before and after the compaction process, and calculating the void content based on these measurements.

This standard is essential in the field of transportation engineering as it allows for the characterization of fillers' voids and their ability to hold asphalt. The results obtained from this test help in evaluating fillers' suitability for specific applications and ensure the quality and performance of asphalt mixtures used in pavement construction.