Analysis Of Pavement Structural Variability
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Analysis of Pavement Structures
| Author | : Animesh Das |
| Publisher | : CRC Press |
| Total Pages | : 222 |
| Release | : 2014-08-19 |
| Genre | : Technology & Engineering |
| ISBN | : 1466558563 |
Predict or Explain the Pavement Response to Load: Understand the Physical Governing PrinciplesAnalysis of Pavement Structures brings together current research and existing knowledge on the analysis and design of pavements. This book provides a platform for the readers to understand the basic principles of physics and mechanics involved in pavement
Structural Behavior of Asphalt Pavements
| Author | : Lijun Sun |
| Publisher | : Butterworth-Heinemann |
| Total Pages | : 1072 |
| Release | : 2016-08-09 |
| Genre | : Technology & Engineering |
| ISBN | : 0128028939 |
Structural Behavior of Asphalt Pavements provides engineers and researchers with a detailed guide to the structural behavioral dynamics of asphalt pavement including: pavement temperature distribution, mechanistic response of pavement structure under the application of heavy vehicles, distress mechanism of pavement, and pavement deterioration performance and dynamic equations. An authoritative guide for understanding the key mechanisms for creating longer lasting pavements, Structural Behavior of Asphalt Pavements describes the intrinsic consistency between macroscopic performance and microscopic response, structure and material, as well as global and local performances, and demonstrates the process of pavement analyses and designs, approaching science from empirical analyses. Analyzes the external and internal factors influencing pavement temperature field, and provide a review of existing pavement temperature prediction models Introduces a “Bridge Principle through which pavement performance and fatigue properties are consolidated Defines the intrinsic consistency between macroscopic performance and microscopic response, structure and material, as well as global and local performance Summaries the mechanistic response of pavement structure under the application of heavy vehicle, distress mechanism of pavement, pavement deterioration performance and dynamic equations, and life cycle analysis of pavement
Impact of Asphalt Thickness Variability on Flexible Pavement Structural Capacity and Performance
| Author | : Nizar Mohammad Hamed Altarawneh |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 2022 |
| Genre | : Bearing capacity |
| ISBN | : |
Roadway construction is challenging since it is hard to control and there are many factors that might change the quality of the resulting roadway. Pavement thickness variation is one of those factors that varies due to poor construction practices. As it was observed that the variabilities in pavement thicknesses affect the overall flexible pavement performance, this research study examined the effect of the asphalt layers thickness variability on flexible pavement structural capacity and performance. Two non- destructive testing (NDT) devices, including Ground Penetrating Radar (GPR) and Falling Weight Deflectometer (FWD) were used in this study. Layer thicknesses were obtained using both extracted field cores and GPR, while FWD was utilized to back- calculate layers moduli using deflections measured on each pavement layer. The structural capacity, represented by the effective structural number (SNeff) of each roadway section, was calculated according to the AASHTO 1993 procedures, while pavement performance was evaluated using the MEPDG software for just the thinnest (5EB) and thickest (6WB) roadway sections. Two MEPDG runs were conducted for each roadway section which includes using the planned and as constructed thicknesses. Results revealed that the structural capacity of all roadway sections had a SNeff value greater than the designed SN; values calculated ranged from 7.0 to 10.31 because each section had a subgrade modulus and total pavement thickness that varied from others. Predicted performance results showed that the runs conducted using MEPDG software passed all indicators except the thermal cracking. Even though the two roadway sections failed by thermal cracking and passed other indicators, it was found that as the thickness of the AC layer increase, the predicted performance value of all distresses and IRI will decrease. Therefore, it was concluded that the thickness variability across all tested roadway sections in this research study did not affect the flexible pavement's structural capacity. However, the performance of tested roadway sections was impacted.
Variability in Construction of Cement-treated Base Layers: Probabilistic Analysis of Pavement Life Using Mechanistic-empirical Approach
| Author | : Tyler J. Rogers |
| Publisher | : |
| Total Pages | : 42 |
| Release | : 2009 |
| Genre | : Electronic dissertations |
| ISBN | : |
The primary objective of this research was to quantify the improvement in service life of a flexible pavement constructed using full-depth reclamation (FDR) in conjunction with cement stabilization when specified reductions in the spatial variability of specific construction-related parameters are achieved. This study analyzed pavement data obtained through field and laboratory testing of a reconstruction project in northern Utah. Data analyses included multivariate regression, Monte Carlo simulation, and mechanistic-empirical analyses of a model pavement structure.
Rational Characterization of Pavement Structures Using Deflection Analysis: Research results & findings
| Author | : |
| Publisher | : |
| Total Pages | : 256 |
| Release | : 1988 |
| Genre | : Pavements |
| ISBN | : |
In this study, a rational overlay design method for flexible pavements in Arizona has been developed which includes roughness, fatigue and plastic deformation models. The method is incorporated in a microcomputer program which is also capable of analyzing the economics of other rehabilitation alternatives. During the development of the method, twenty in-service pavement sites were selected from Arizona highways covering various geographical and environmental regions, soil types, pavement conditions and traffic volumes. nondestructive tests (NDT) were performed on these sites using the Falling Weight Deflectometer at three stress levels as well as the Dynaflect. The pavement layers and subgrade moduli were backcalculated from NDT data using both static and dynamic analyses. The moduli of asphaltic layers were further adjusted for temperature. Statistical analysis was performed and the stress sensitivity was found to be small. Cone Penetration tests were further performed to verify the subgrade moduli. Asphalt concrete cores, base and subbase samples and undisturbed subgrade materials. In addition, base and subbase gradation as well as soil classification and Atterberg limits were obtained. The study expanded the data base for material properties in Arizona. This volume is the first in a three volume set. Volume II provides field testing procedure and workstation development and Volume III is a computer user guide.
Statistical Analysis and Variability of Pavement Materials
| Author | : Reed B. Freeman |
| Publisher | : |
| Total Pages | : 170 |
| Release | : 1997 |
| Genre | : Analysis of variance |
| ISBN | : |
Variability in Highway Pavement Construction
| Author | : Charles S. Hughes |
| Publisher | : Transportation Research Board |
| Total Pages | : 48 |
| Release | : 1996 |
| Genre | : Technology & Engineering |
| ISBN | : 9780309060028 |
This synthesis will be of interest to state DOT construction, materials, statistical, specification, and inspection engineers; DOT research staff; pavement construction material suppliers; highway construction contractors; and civil engineering consulting firms, including field and laboratory materials testing personnel. The synthesis describes the state of the practice for defining and measuring variability in highway pavement construction. Data obtained from a review of the literature, a survey of state departments of transportation (DOTs), and discussions with selected state DOT personnel and private materials producers are presented. This report of the Transportation Research Board defines several measures of variability but concentrates on the use of standard deviation as the usual measure of variability. The synthesis updates reported typical variabilities found in materials and construction specifications. Also included are discussions of current research activities as related to variability, how variability can be used in the development of specification limits, the use of incentives and disincentives in specifications, and the need for additional information on the variability of several materials and construction processes.
Determining Asphaltic Concrete Pavement Structural Properties by Nondestructive Testing
| Author | : National Research Council (U.S.). Transportation Research Board |
| Publisher | : Transportation Research Board |
| Total Pages | : 116 |
| Release | : 1990 |
| Genre | : Nondestructive testing |
| ISBN | : 9780309046244 |
