ASTM D8598 : 25

1.1 This standard practice outlines the requirements associated with the construction and testing of full-scale unpaved and paved roadway cross sections, with and without geosynthetics, that are built in a controlled manner and trafficked using a rolling wheel load.

1.2 Test section performance from these tests is normally calculated as a function of life extension, but can also be determined based on structural improvement. Life extension is related to the number of traffic passes that can be accommodated by a particular configuration when compared to a similarly constructed control. Structural improvements are based on elemental or system-wide stiffness increases.

1.3 The rolling wheel load test is intended to be a performance test conducted as closely as possible to as-built unpaved and paved roadway cross sections. It has been used as a tool to compare the performance of different geosynthetics using the same traffic conditions for various conditions, such as soil types, material strengths, layer thicknesses, and construction procedures for a variety of pavement applications.

1.4 Units—The values stated in SI units are to be regarded as the standard. Values in parentheses are for information only.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.