Details:

Creators:
Hiltunen, Dennis R.
Corporate Creators:
University of Florida. Dept. of Civil and Coastal Engineering
Corporate Contributors:
Florida. Dept. of Transportation
Subject/TRT Terms:
[+]
Base Course (Pavements) Layer Coefficient (Pavements) Literature Reviews Pavement Design Pavement Layers Structural Number (Pavements)
Publication/ Report Number:
BDV31-977-27
Resource Type:
Tech Report
Geographical Coverage:
Florida
Corporate Publisher:
University of Florida
Abstract:
FDOT’s current method of determining a base material structural layer coefficient (SLC) is detailed in the

Materials Manual, Chapter 2.1, Structural Layer Coefficients for Flexible Pavement Base Materials.

Currently, any new base material not approved under FDOT specifications must undergo (1) laboratory

testing, (2) test pit investigation, and (3) a project test section for constructability and roadway performance

evaluation to determine a SLC for design purposes. The test section evaluation phase can take up to five

years to compare the pavement performance of the new base material with a limerock base control section.

In this project, a thorough review of literature has been conducted of current and past practices for the

determination of structural layer coefficients (SLC) of pavement base materials. The review organizes the

methodologies into three broad categories: (1) methods that determine SLCs via relationships with other

material parameters; (2) methods that determine SLCs via estimates of the structural number (SN) of

existing and available pavement sections; and (3) methods that establish SLCs via equivalencies with a

reference material. Several of the strategies reviewed provide opportunities for estimating SLCs of both

traditional and new base course materials in a more accelerated fashion and in considerably less time than

the five years often required at present.


Format:
PDF
Collection(s):
US Transportation Collection
Main Document Checksum:
[+]
urn:sha256:28b2cd6e84f5325783038608e24b56f928f9dd3b936e3e885846606a08fcff15
Download URL:
https://rosap.ntl.bts.gov/view/dot/28523/dot_28523_DS1.pdf
File Type:

Supporting Files

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