01333119

Component

https://doi.org/10.3141/2226-06

http://scholar.google.com...+Won&publication_year=2011

In 2005, the Texas Department of Transportation initiated a rigid pavement database to collect information in preparation for the calibration and potential implementation of the "Mechanistic–Empirical Pavement Design Guide" (MEPDG) for continuously reinforced concrete pavement (CRCP). Twenty-seven sections, each 300 m (1,000 ft) long, were selected throughout the state. Deflection testing was conducted with a falling weight deflectometer. The information collected included load transfer efficiency (LTE) at small, medium, and large crack spacing for two different seasons, summer and winter. Also collected were crack-spacing information and slab deflections. LTE values for all the cracks were higher than 90% regardless of slab thickness, pavement age, crack spacing, or season. Mechanisms of primary distresses in CRCP were investigated. The investigation tentatively revealed that many distresses identified and recorded as punch-outs in Texas were not actually caused by structural deficiency. Rather, most of the distresses were caused by imperfections in design details, construction or material quality issues, or both. Horizontal cracking appears to be the major cause of distresses in CRCP in Texas. The interactions between longitudinal steel and concrete in response to dynamic wheel loading applications appear to be the cause of horizontal cracking. From the findings, mechanistic–empirical (ME) CRCP design procedures and a calibration function were developed. Because the accuracy of any ME design procedure depends to a great extent on the reasonableness of the transfer function, further efforts will be made to improve that function.

01353811

11-3477

English

pp 51-59

2011

Transportation Research Record: Journal of the Transportation Research Board

9780309167369

Print

Figures; Photos; References (10) ; Tables (1)

Continuously reinforced concrete pavements; Deflection; Load transfer; Pavement cracking; Pavement design; Pavement distress; Rigid pavements

Mechanistic-Empirical Pavement Design Guide

Crack spacing; Horizontal cracking; Load transfer efficiency

Texas

Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways

TRIS, TRB, ATRI

Feb 17 2011 6:32PM

• Analysis of Perpetual Pavement Experiment Sections in China
• Bootstrapping Procedure to Determine Convergence in Monte Carlo Simulations
• Calibration of Distress Models from the "Mechanistic–Empirical Pavement Design Guide" for Rigid Pavement Design in Argentina
• Calibration of the "Mechanistic–Empirical Pavement Design Guide" for Flexible Pavement Design in Arkansas
• Effect of Concrete Strength and Stiffness Characterization on Predictions of Mechanistic–Empirical Performance for Rigid Pavements
• Enhancing "Mechanistic–Empirical Pavement Design Guide" Rutting-Performance Predictions with Hamburg Wheel-Tracking Results
• Estimation and Validation of Gaussian Process Surrogate Models for Sensitivity Analysis and Design Optimization: Based on the "Mechanistic–Empirical Pavement Design Guide"
• Finite Element Model for Rutting Prediction of Flexible Pavement with Cementitiously Stabilized Base–Subbase
• Improvements to Modeling of Concrete Slab Curling by Using NIKE3D Finite Element Program
• Minnesota Road Research Data for Evaluation and Local Calibration of the "Mechanistic–Empirical Pavement Design Guide"’s Enhanced Integrated Climatic Model
• New Laboratory-Based Mechanistic–Empirical Model for Faulting in Jointed Concrete Pavement
• Sampling-Based Sensitivity Analysis of the "Mechanistic–Empirical Pavement Design Guide" Applied to Material Inputs
• Structural Analysis of Pervious Concrete Pavement
• Thirty-Year Performance Evaluation of Two-Layer Concrete Pavement System
• Toward Implementation of the "Mechanistic–Empirical Pavement Design Guide" in Latin America: Preliminary Work in Chile