Long-Term Pavement Performance. Protocol P46: Resilient Modulus of Unbound Granular Base/Subbase Materials and Subgrade Soils

摘要

This LTPP program protocol describes the laboratory preparation and testing procedures for the determination of the Resilient Modulus of unbound granular base and subbase materials and subgrade soils under specified conditions representing stress states beneath flexible and rigid pavements subjected to moving wheel loads. The methods described are applicable to: undisturbed samples of natural and compacted subgrade soils, and to disturbed samples of unbound base and subbase and subgrade soils prepared for testing by compaction in the laboratory.