Abstract
This project investigates the modulus and deformation behavior of granular base/subbase layers in airport pavements using three types of embedded sensors: bender element (BE) field sensors, coil sensors, and pressure cells. These sensors were installed in multiple test items at the Federal Aviation Administration’s Construction Cycle 9 (CC9) of the National Airport Pavement Test Facility (NAPTF). This report discusses the sensor instrumentation procedure, data collection during pre-traffic and traffic tests, and the analysis of measured data.