This test method covers the determination of relationship between moisture content and elastic modulus of unbound granular material using the Light Weight Deflectometer (LWD) on laboratory compaction samples.
Portable Impulse Plate Load; Portable Falling Weight Deflectometer (PFWD); pavement foundation layer; structure foundation layer; Quality Assurance (QA); Nondestructive Testing (NDT); load-deflection testing; layer elastic modulus; layer stiffness; layer deflection
This test method covers determination of stiffness or elastic modulus of unbound materials based on acquiring deflection measurements on laboratory compaction samples. The target values are determined by acquiring LWD measurements on laboratory compaction samples (referred to as Proctor tests) of the unbound materials. This method covers determining these target moduli by comparing the compaction moisture-density characteristics from standard laboratory compaction measurements in order to optimize the uniformity of compaction and strength condition of the unbound layers.
The title and scope are in draft form and are under development within this ASTM Committee.
Date Initiated: 12-03-2019
Technical Contact: Stan Smith