Scipediacontent: Scipediacontent moved page Draft Content 956463258 to Southgate et al 1983a

2021-01-21T14:12:02Z

Scipediacontent moved page Draft Content 956463258 to Southgate et al 1983a

Scipediacontent: Created page with " == Abstract == To evaluate projects involving approximately 200-route-mile of interstate and primary pavements in Kentucky and Tennessee in relatively short time frames, it..."

2021-01-21T14:11:58Z

Created page with " == Abstract == To evaluate projects involving approximately 200-route-mile of interstate and primary pavements in Kentucky and Tennessee in relatively short time frames, it..."

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== Abstract ==

To evaluate projects involving approximately 200-route-mile of interstate and primary pavements in Kentucky and Tennessee in relatively short time frames, it was decided to test, analyze, and design overlays using test equipment (road rater) and procedures developed by the University of Kentucky transportation research program. This paper presents the analysis methodology and the evaluation and overlay designs for selected projects, including the before and after analysis of milling on one project. The road rater applies a dynamic sinusoidal loading of known force and frequency. The velocity of the vibration waves are measured by sensors and integrated electronically to obtain surface deflections. An analysis of the shape and magnitude of the deflection bowl permits an assessment of whether the structure is performing as anticipated or whether some component is significantly weaker than designed. Analyses permit the determination of the "behavioural" or effective thickness of the asphaltic concrete layers and the in-place subgrade moduli. Strip charts of effective thickness and subgrade strength (or alternatively, overlay thicknesses) along the length of a project permit delineation of the project into relatively uniform segments. The arithmetic mean and standard error are determined for each segment to estimate design parameters. The required overlay thickness is the difference between the total thickness required for new construction to carry the anticipated traffic and the behavioural thickness of the existing pavement. For the covering abstract of the symposium see IRRD 286635. (Author/TRRL)

== Original document ==

The different versions of the original document can be found in:

* [http://dx.doi.org/10.13023/ktc.rr.1983.24 http://dx.doi.org/10.13023/ktc.rr.1983.24]

* [http://dx.doi.org/10.1520/stp32917s http://dx.doi.org/10.1520/stp32917s]

* [https://uknowledge.uky.edu/cgi/viewcontent.cgi?article=1978&context=ktc_researchreports https://uknowledge.uky.edu/cgi/viewcontent.cgi?article=1978&context=ktc_researchreports]

* [https://www.astm.org/DIGITAL_LIBRARY/STP/PAGES/STP32917S.htm https://www.astm.org/DIGITAL_LIBRARY/STP/PAGES/STP32917S.htm],
: [http://uknowledge.uky.edu/cgi/viewcontent.cgi?article=1978&context=ktc_researchreports http://uknowledge.uky.edu/cgi/viewcontent.cgi?article=1978&context=ktc_researchreports],
: [https://uknowledge.uky.edu/ktc_researchreports/972 https://uknowledge.uky.edu/ktc_researchreports/972],
: [https://trid.trb.org/view/277726 https://trid.trb.org/view/277726],
: [https://academic.microsoft.com/#/detail/2126089280 https://academic.microsoft.com/#/detail/2126089280]

DOIS: 10.1520/stp32917s 10.13023/ktc.rr.1983.24

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Southgate et al 1983a - Revision history

Scipediacontent: Scipediacontent moved page Draft Content 956463258 to Southgate et al 1983a

Scipediacontent: Created page with " == Abstract == To evaluate projects involving approximately 200-route-mile of interstate and primary pavements in Kentucky and Tennessee in relatively short time frames, it..."