LTPP DATA ANALYSIS: DAILY AND SEASONAL VARIATIONS IN INSITU MATERIAL PROPERTIES

Eric C. Drumm, Roger Meier

NCHRP Web Document · 2003 · 16 citations · 0 references

Concepts

Abstract

As part of the Long Term Pavement Performance (LTPP) Seasonal Monitoring Program (SMP), pavement sites across North America were instrumented to periodically measure the temperature and moisture conditions inside the pavement and some of the environmental factors that affect those conditions. Coupled with periodic falling weight deflectometer (FWD) tests to determine the stiffness of the pavement layers, this program has produced a data set that can be used to investigate daily and seasonal changes in pavement material properties and relate those changes to the changes in structural capacity that would necessitate load restrictions. This report presents the results of such an analysis of this data set.