Stresses in Concrete Runways of Airports, Highway Research Board 19: 197–202. Use of FWD Deflection Basin Parameters (Sci, Bdi, Bci) for Pavement Condition Assessment, The Baltic Journal of Road and Bridge Engineering 4(4): 196–202. Relationship of Road Pavement Deformation Moduli, Determined by Different Methods, The Baltic Journal of Road and Bridge Engineering 1(2): 77–81.
Validation of 3DFE Model of Jointed Concrete Pavement Response to Temperature Variations, International Journal of Pavement Engineering 5(3): 123–136. Characterizing Effective Built-In Curling from Concrete Pavement Field Measurements, Journal of Transportation Engineering 131(4): 320–327. Effect of Nonlinear Temperature Gradient on Curling Stress in Concrete Pavement, Transportation Research Record 1568: 65–71. Back-Calculation of Concrete Pavement Modulus Using Road-Rater Data, Journal of Transportation Engineering 124(2): 123–127. Falling-Weight Deflectometer Sensor Location in the Backcalculation of Concrete Pavement Moduli, Journal of Testing and Evaluation 28(3): 166–175. A Numerical Model for the Computation of Concrete Pavement Moduli: a Non-Destructive Testing and Assessment Method, NDT & E International 33(2): 77–84. Environmental Effects on the Behaviour of Jointed Plain Concrete Pavements, Journal of Transportation Engineering 131(2): 140–148. Effect of Slab Curling on Movement and Load Transfer Capacity of Saw-Cut Joints, Transportation Research Record 1947: 69–78. Environmental Effect on Development of Pavement Joint Cracks, in Proc. Dimensional Analysis in NDT Rigid Pavement Evaluation, Journal of Transportation Engineering 116(1): 23–36. Backcalculating Nonlinear Resilient Moduli from Deflection Data, Transportation Research Record 852: 42–51. Backcalculation of Asphalt Concrete-Overlaid Portland Cement Concrete Pavement Layer Moduli, Transportation Research Record 1293: 112–123. Three-Dimensional Finite Element Analysis of Jointed Plain Concrete Pavement with EVERFE2.2, Transportation Research Record 1853: 92–99.
Measured data of deflection and load transfer efficiency (LTE) of the tested joints verify the curling effect on the backcalculated structural capacity of the concrete pavements.ĭavids, W. A basic concept to adjust the cyclic variation in the backcalculated elastic modulus due to the slab curling using the temperature difference between the top and bottom of the slab is presented. The elastic moduli of the concrete pavement layers were backcalculated using the measured deflection basins, the AREA method and the method of equivalent thickness (MET).
The curling effect on the backcalculated elastic modulus of the concrete slab was investigated using the different temperature gradients and slab curl conditions arising at different measurement times. In the present work, deflections of jointed concrete pavement under a Falling Weight Deflectometer (FWD) loading were measured for 48 h at the KEC (Korea Expressway Corporation) test road. However, variation in the backcalculated elastic modulus, even within a pavement section, is a significant issue in the concrete pavement evaluation. Accordingly, the elastic moduli backcalculated by various backcalculation algorithms have been evaluated using the elastic moduli of cores of concrete pavement layers measured in the laboratory. Different backcalculation algorithms produce different elastic moduli which are used as a key indicator of structural capacity of concrete pavements.
0 kommentar(er)
