Instrumentation of a rigid pavement system : final report, April 1997.

Sargand, Shad M.; Hazen, Glenn A.; Ohio University. Center for Geotechnical and Environmental Research

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ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.

i

Instrumentation of a rigid pavement system : final report, April 1997.

2007-04-01
By Sargand, Shad M. ; Hazen, Glenn A.

English

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Details:

Creators:

Sargand, Shad M. ; Hazen, Glenn A.

Sargand, Shad M. ; Hazen, Glenn A. Less -
Corporate Creators:

Ohio University. Center for Geotechnical and Environmental Research
Corporate Contributors:

Ohio. Dept. of Transportation ; United States. Federal Highway Administration

Ohio. Dept. of Transportation ; United States. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

Concrete Pavements Cracking Of Concrete Pavements Deflectometers Live Loads Pavements, Concrete--Cracking Pavements, Concrete--Testing Pavements--Live Loads--Testing Testing
Publication/ Report Number:

FHWA/OH-97/001
Resource Type:

Tech Report
Geographical Coverage:

Ohio
Edition:

Final report.
Corporate Publisher:

Ohio University. Center for Geotechnical and Environmental Research
Abstract:

This research focused on development of a comprehensive field instrumentation program to measure the in-situ responses of a concrete pavement system subjected to Falling Weight Deflectometer (FWD) loading and various environmental conditions. Responses measured were slab stresses, vertical slab deflection, temperature gradient through the slab thickness, base and subgrade soil moisture content, and load transfer pressures at the slab-base interface. Moisture content was found to increase up to 50% once an expansion crack develops. The temperature gradient through the slab was not linear. Deflections were greatest at the joints for environmental and FWD testing. Significant stresses and deflections developed in all lengths of slabs tested. Lowest stresses were recorded in the 21 foot slabs. Strain measuring sensors were able to detect stress relief due to cracking. Load transfer pressures at the slab-base interface and the moisture level of the base and subgrade did not appear to be significant. Three-dimensional finite element modeling was shown to be effective for calculating deflections and stresses that develop due to changes in environmental factors and non-destructive testing.
Format:

PDF
Funding:

14515(0)
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:8655248ca572def8a078f33ea7b84777821ecbc1facaa2e6fd2f39eb67a8f818
Download URL:

https://rosap.ntl.bts.gov/view/dot/17561/dot_17561_DS1.pdf
File Type:

[PDF-4.35 MB]