Implementation of Resilient Modulus in the Florida Flexible Pavement DesignProcedure

摘要

The primary objective of this study was to implement the 1986 and 1993 AASHTOflexible pavement design procedure (AASHTO 1986, 1993), with the laboratory test procedure for measuring resilient modulus of unbound base/subbase materials and subgrade soils in Florida. The specific research objectives follow: (1) to evaluate testing methods for determining resilient modulus on subgrade soils and untreated base/subbase materials; (2) to correlate laboratory resilient modulus measurements with LBR (Limerock Bearing Ratio) values and FWD test results on subgrade soils and untreated base/subbase materials; (3) to propose a more convenient and reliable test procedure for the laboratory resilient modulus test procedure; and (4) to conduct a pilot study for implementing the resilient modulus in the Florida flexible pavement design procedure.