SEDL / STP / STP1198-EB / STP18147S

Field Validation of a Hethodology to Identify Material Properties in Pavements Modeled as Layered Viscolastic Halfspaces

Torpunuri, VS
Research Associate, Texas Transportation Institute, Texas A&M University, College Station, TX

Stubbs, M
Associate Professor, Texas A&M University, College Station, TX

Lytton, RL
Professor, Texas A&M University, College Station, TX

Magnuson, AH
Engineering Research Associate, Texas Transportation Institute, Texas A&M University, College Station, TX

Pages: 11    Published: Jan 1994

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Abstract

The methodology developed in the accompanying paper is verified using Falling-Weight Def1ectometer (FWD) data from in-service highways. The procedure to transform Falling-Height Deflectometer data from the time domain to the frequency domain and its analysis In the frequency domain is presented. Frequency response curves based on back-calculated parameters obtained by other Independent methods, parameters identified using the proposed methodology, and the actual Falling-Weight Deflectometer data collected from the field, are compared to demonstrate the validity of the approach.