Effect of Environmental Factors and Loading Position on Dynaflect Deflections in Rigid Pavements

Torres-Verdin, Victor; McCullough, B. Frank; University of Texas at Austin. Center for Transportation Research

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Effect of Environmental Factors and Loading Position on Dynaflect Deflections in Rigid Pavements

1982-11-01
By Torres-Verdin, Victor ; McCullough, B. Frank

[PDF-2.21 MB]

English

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Creators:

Torres-Verdin, Victor ; McCullough, B. Frank

Torres-Verdin, Victor ; McCullough, B. Frank Less -
Corporate Creators:

University of Texas at Austin. Center for Transportation Research
Corporate Contributors:

Texas. Department of Highways and Public Transportation. Transportation Planning Division ; United States. Department of Transportation. Federal Highway Administration

Texas. Department of Highways and Public Transportation. Transportation Planning Division ; United States. Department of Transportation. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

Air Voids Continuously Reinforced Concrete Pavements Deflection Dynaflect Environmental Impacts Loads Pavements Procedures Sampling
Publication/ Report Number:

FHWA/TX-82/28+249-4
Resource Type:

Tech Report
Geographical Coverage:

Texas ; United States

Texas ; United States Less -
Edition:

Interim Report
Corporate Publisher:

University of Texas at Austin. Center for Transportation Research
Abstract:

In this report, several of the factors that affect Dynaflect deflections in rigid pavements are analyzed. Findings from this study are incorporated into a recommended procedure for the use of the Dynaf1ect. The Slab-49 program is used to simulate voids of various sizes under a continuously reinforced concrete pavement. The effect of a placement error in the deflection measurement device is also studied. Distances from the pavement edge at which the Dynaf1ect should be placed are recommended for both materials' characterization and void detection. A discussion about the effect of environmental factors on deflections in rigid pavements is also presented. Statistical analysis is considered for determining the required number of Dynaf1ect deflections to obtain representative results. Finally, the results from this report are combined into a recommended procedure for Dynaflect deflection measurements, which, it is hoped, will result in improvements to the determination of input data for rigid pavement overlay design computer programs.
Format:

PDF
Funding:

3-8-79-249
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha-512:4be2eafab46244724eb30b0154e5146569d25c6fe4de9c9bdb33efe856254a4a4218f335ff5fa03fd5c213df699daf62e17caa68b94490e7261d0f359cda79d3
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https://rosap.ntl.bts.gov/view/dot/77965/dot_77965_DS1.pdf
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Effect of Environmental Factors and Loading Position on Dynaflect Deflections in Rigid Pavements

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