01024815

Component

https://doi.org/10.3141/1947-08

http://scholar.google.com...+Won&publication_year=2006

The early-age behavior of continuously reinforced concrete pavement (CRCP) in terms of concrete strains and stresses due to environmental loading was extensively investigated. The strains measured with strain gauges in the actual CRCP cannot be used simply to calculate the concrete stresses by multiplying the elastic modulus of concrete because the measured strains include both the stress-dependent and -independent strains. In situ stress-independent strains were measured with vibrating wire gauges embedded in the modified half-cylinders developed in this study and in small beams. The total strains in the concrete were measured with vibrating wire gauges at different depths in both the longitudinal and transverse directions at the crack-induced area and the surrounding areas in several test sections. The crack width variation through the depth of the pavement was also measured with the gauges installed at the crack-induced area. The in situ coefficient of thermal expansion and drying shrinkage of concrete were successfully measured with the developed measurement devices, and these measured values were used to calculate the stress-dependent strains. The concrete stresses were then calculated from the stress-dependent strains and the calculated stresses were finally verified by comparison between the calculated stress at the instant of cracking and the measured strength.

01031683

English

Kohler, Erwin

pp 79-90

2006

Transportation Research Record: Journal of the Transportation Research Board

0309099552

Print

Figures (13) ; Photos (5) ; References (6) ; Tables (1)

Continuously reinforced concrete pavements; Cracking; Drying; Modulus of elasticity; Shrinkage; Strain (Mechanics); Strain gages; Stresses; Thermal expansion

Coefficient of thermal expansion; Crack width; Early-age behavior (Pavements); Environmental loads; Vibrating wire gages

Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces

TRIS, TRB

Mar 3 2006 10:29AM

• Accelerated Loading Testing of Stainless Steel Hollow Tube Dowels
• Characterizing Strain Induced by Environmental Loads in Jointed Plain Concrete Pavements: Immediately After Paving and Throughout First Ten Months
• Comparisons of Flexible Pavement Designs: AASHTO Empirical Versus NCHRP Project 1-37A Mechanistic–Empirical
• Concrete Pavement Performance in Midwestern Argentina Compared with Long-Term Pavement Performance Data: HDM-4 Distress Models
• Effect of Load Spectra on Mechanistic-Empirical Flexible Pavement Design
• Effect of Slab Curling on Movement and Load Transfer Capacity of Saw-Cut Joints
• Evaluation of Pavement Slab Rocking and Pumping with Elevation Profile Data
• Evaluation of Subgrade Resilient Modulus Predictive Model for Use in Mechanistic–Empirical Pavement Design Guide
• Experimental Investigation of Effects of Dowel Misalignment on Joint Opening Behavior in Rigid Pavements
• Improving Prediction Accuracy in Mechanistic-Empirical Pavement Design Guide
• Jointed Plain Concrete Pavement Model Evaluation
• Mechanistic–Empirical Study of Effects of Truck Tire Pressure on Pavement: Measured Tire–Pavement Contact Stress Data
• Network-Level Evaluation of Specific Pavement Study-2 Experiment: Using a Long-Term Pavement Performance Database
• Pilot Study in Sampling-Based Sensitivity Analysis of NCHRP Design Guide for Flexible Pavements
• Practical Probabilistic Design Format for Flexible Pavements
• Seasonal Time Series Models to Support Traffic Input Data for Mechanistic-Empirical Design Guide
• Sensitivity Analysis of 2002 Design Guide Distress Prediction Models for Jointed Plain Concrete Pavement