Nondestructive Quality Control of Geo-materials Using Seismic Methods

摘要

Stiffness is the main engineering parameter generally used in the structural design of highways. However, adequate in-place density is normally used for acceptance criteria. Several nondestructive Testing (NDT) methods have been recently developed to supplant the conventional methods. Seismic methods are one example. In this paper, a procedure to measure the modulus of each pavement layer after placement with seismic technology is presented. Field and laboratory tests are incorporated so their results can be reconciled without any scaling or simplifying assumptions. The overall procedure and a case study are described here.