Methodology for Determination of the Structural Layer Coefficient of Unbound Base Materials in Florida-Reference-Cited by-同舟云学术

Methodology for Determination of the Structural Layer Coefficient of Unbound Base Materials in Florida

Published:2020-06-23 Issue:8 Volume:2674 Page:160-166
ISSN:0361-1981
Container-title:Transportation Research Record: Journal of the Transportation Research Board
language:en
Short-container-title:Transportation Research Record

Author:

Hwang Hyunchul¹,Hiltunen Dennis R.¹

Affiliation:

1. Department of Civil and Coastal Engineering, University of Florida, Gainesville, FL

Abstract

The main goal of this study was to assess methodologies for the determination of base structural layer coefficients (SLCs) in Florida base materials. The aim was to streamline the traditional empirical and observationally based technique for determining layer coefficients either by an accelerated loading process or by the computer simulation of pavement performance. The paper describes a methodology in which the structural numbers (SN) of two paired test sections are used to backcalculate the unknown SLC. The SNs are determined from the AASHTO performance equation using a prediction of pavement performance from the University of Florida top-down cracking (TDC) model. The paper presents a positive application of the methodology for two test sections in Louisiana and two sections in Florida.

Publisher

SAGE Publications

Subject

Mechanical Engineering,Civil and Structural Engineering

Link

http://journals.sagepub.com/doi/pdf/10.1177/0361198120924662

Reference9 articles.

1. Timm D. H., Robbins M. M., Tran N., Rodezno C. Recalibration Procedures for the Structural Asphalt Layer Coefficient in the 1993 AASHTO Pavement Design Guide. NCAT Report 14-08. National Center for Asphalt Technology, Auburn University, 2014, pp. 1–35.

2. Hiltunen D. R. Synthesis/Literature Review for Determining Structural Layer Coefficients (SLC) of Bases. Final Report for Contract BVD31 TWO 977-27. Florida Department of Transportation, 2014, p. 33.

3. AASHTO Guide for Design of Pavement Structures. American Association of State Highway and Transportation Officials, Washington, D.C., 1993.

4. Wu Z., Zhang Z., King W. M. Accelerated Loading Evaluation of Stabilized BCS Layers in Pavement Performance. Report No. FHWA/LA.08/474. Louisiana Transportation Research Center, 2012, p. 101.

5. Hiltunen D. R., Hwang H. Accelerating Development of Structural Layer Coefficients (SLC) of Bases. Final Report for Contract BVD31 TWO 977-54. Florida Department of Transportation, 2019, p. 88.