Mechanistic flexible pavement overlay design program : tech summary.

Wu, Zhong; Gaspard, Kevin; Louisiana Transportation Research Center

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Mechanistic flexible pavement overlay design program : tech summary.

2009-07-01
By Wu, Zhong ; Gaspard, Kevin

[PDF-125.65 KB]

English

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Details:

Creators:

Wu, Zhong ; Gaspard, Kevin

Wu, Zhong ; Gaspard, Kevin Less -
Corporate Creators:

Louisiana Transportation Research Center
Corporate Contributors:

Louisiana. Dept. of Transportation and Development ; United States. Federal Highway Administration

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

[+]

Flexible Pavements Overlays (Pavements) Pavements, Flexible--Louisiana Pavements--Overlays Pavements--Testing
Publication/ Report Number:

FHWA/LA.08/454
Resource Type:

Tech Report
Geographical Coverage:

Louisiana
Corporate Publisher:

Louisiana Transportation Research Center
Abstract:

The Louisiana Department of Transportation and Development (LADOTD) currently follows the 1993

AASHTO pavement design guide’s “component analysis” method in its fl exible pavement overlay thickness

design. Such an overlay design method, however, does not require performing any fi eld or laboratory tests

to assess existing pavement structural conditions. Instead, pavement engineers have to use a pre-assigned,

parish-based subgrade resilient modulus value and a set of assumed structural layer coeffi cients in an overlay

thickness design. Obviously, such an overlay thickness design procedure could potentially lead to an over- or

under-designed overlay thickness since none of the design parameters represent actual fi eld conditions.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:6797e9fcb19d935a430ca73bff64d4793f438c49e7f7b77d6bc3de0818bdf379
Download URL:

https://rosap.ntl.bts.gov/view/dot/18545/dot_18545_DS1.pdf
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Mechanistic flexible pavement overlay design program : tech summary.

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