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Showing 1 to 19 of 19 for “"Rigid Pavements"”.
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Mechanistic-Empirical Pavement Design Guide (MEPDG) Method Implemented to Estimate Damage in Flexible and Rigid Pavements
… Design Guide (MEPDG) method for flexible and rigid pavements requires numerous input parameters. Most of these parameters can be easily determined while some require best estimates that are usually extracted from available literature. This thesis identifies the most critical input parameters …
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Development of a life-cycle assessment tool for pavement preservation and maintenance of flexible and rigid pavements
Made available in DSpace on 2020-03-02T22:18:19Z (GMT). No. of bitstreams: 2 ZHOU-THESIS-2019.pdf: 3916087 bytes, checksum: 5aebc99a0f134788b0a62a90eb33f4f6 (MD5) LICENSE.txt: 4209 bytes, checksum: 8dfc9b11f3e2f958296a80b19fdaba9a (MD5) Previous issue date: 2019-12-12
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Model based pavement-vehicle interaction simulation for life cycle assessment of pavements
… true for the roadway Network and the design of pavements in it. Vehicle fuel consumption required to overcome resisting forces due to pavement-vehicle interaction (PVI) is an essential part of life-cycle assessment (LCA) of pavement systems. These PVIs are intimately related to pavement …
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Effects of Prestress Level and Bond on the Behavior of Prestressed Concrete Pavements
… The early application of prestressed concrete pavements was in the mid 1940's but its progress was slow compared with the other types of rigid pavements. Performance of the early build prestressed concrete pavements and advancements in construction technology as well as the ever increasing …
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Projeto de reforço de pavimentos rodoviários e aeroportuários pelo método da resiliência: uma nova versão do programa TECNAPAV
An overlay design procedure for flexible and semi-rigid pavements is presented. It is based on models developed from the Theory of Elasticity, either existing solutions for linear elasticity or from non-linear elasticity. The computer program TECNAPAV used for pavement management system was …
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Development of Mechanistic-Empirical Principles for Jointed Plain Concrete Pavement Fatigue Design
… observed critical distresses and fatigue life of rigid, pavements. A mechanistic analysis and design software (RadiCAL) was developed employing an influence line approach in conjunction with Miner's Hypothesis to calculate the fatigue damage at numerous locations in the slab for typical jointed …
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New Field Testing Procedure For Measuring Residual Stress in Plain Concrete Pavements and Structures
Residual stresses in rigid pavements diminish a pavement's ability to sustain its designed load. When capacity is reduced by residual stress, a pavement is vulnerable to premature failure necessitating costly repairs or replacement. A test method for measuring residual stresses has already been …
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Performance of doweled concrete joints subjected to fatigue loading
… believed to be a major factor for the failure of rigid pavement joints.;Dr. Shoukry invented a new dowel design named shokbar that significantly reduces the magnitude of such contact stresses. The primary objective of this study is to characterize the behavior of shokbars versus regular dowels. …
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Impact of structure, material properties, temperature curling, and trafficking on load transfer efficiency
… and trafficking on load transfer efficiency of rigid airfield pavements. The current FAA mechanistic design procedure for rigid pavements assumes constant stress-based load transfer efficiency (LTE (S)) of 25% at the joints. The design procedure assumes the material properties remain constant …
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Sensitivity Analysis Of Aashto's 2002 Flexible And Rigid Pavement Design Methods
… the new AASHTO 2002 method for both flexible and rigid pavements, to understand its performance with respect to the various design parameters. Several important design parameters were selected and were varied one at a time and their effect on the pavement distresses was found. The sensitivity …
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Quantification of the effects of heavy agricultural vehicle loading on pavement performance.
… Minnesota. There were both flexible and rigid pavement sections implemented with strain gauges, LVDTs and earth pressure cells at the MnROAD testing facility. The objective of this study was to investigate the effects of farm equipment on the structural responses (stresses and strains) of …
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Accelerated Construction of Roadways: Life Cycle Assessment and Environmental Impacts
… techniques were identified for both flexible and rigid pavements. A life cycle assessment (LCA) approach was used, taking into account the life extension of the pavement for each type of strategy. The scope boundary includes only the construction activities relevant to pavement MRR. </p> <p>On the …
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Multiphysics Simulation and Innovative Characterization of Freezing Soils
… and in typical buried pipe scenarios. For pavements, both flexible and rigid pavements were simulated. The simulation results were compared with instrumented data on these test pavements. For pipes, cases involving static and dynamic loads were studied, respectively. Phenomena typical of …
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Integrating Pavement Information Modeling (PIM), Pavement Sustainable Design, Climate Changing Adaptation and Cost Estimating at the Conceptual Design Stage of Roads
Pavements are critical parts of infrastructure projects for urban growth since cities rely significantly on numerous kinds of transportation for access and movement. To fill the gaps in the knowledge and methodology used in the construction of sustainable, resilient, and cost effective pavements, a …
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Characterization of Ohio Traffic Data for Integration into the Mechanistic-Empirical Pavement Design
… a hierarchal level concept that allows pavements to be designed using statewide averages and MEPDG default values without compromising the accuracy of the pavement design. In this study, a Visual Basic for Application (VBA) code was developed to analyze continuous traffic monitoring data …
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Fracture-Based Method to Determine the Flexural Load Capacity of Concrete Slabs
… and limited availability of raw materials for rigid pavements pose a unique challenge in terms of the initial pavement design, concrete material selection, and the slab's cracking performance throughout its service life. New pavement technologies and concrete materials continue to be developed …
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Evaluation of In-Situ variability of concrete pavement characteristics and their effect on performance
… transverse cracking in Jointed Plain Concrete Pavements (JPCP). This dissertation concentrated on quantifying the effect of concrete thickness variability and, to a lesser extent, flexural strength variability on the reliability analysis of jointed plain concrete pavement (JPCP) performance. …
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Local calibration of the MEPDG prediction models for pavement rehabilitation and evaluation of top-down cracking for Oregon Roadways
… by ODOT involves rehabilitation of existing pavements. Hot mix asphalt (HMA) overlays are the preferred rehabilitation treatment for both flexible and rigid pavements in Oregon. However, like new work sections, HMA overlays are also susceptible to fatigue cracking (alligator cracking and …
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Composite Pavements: A Technical and Economic Analysis During the Pavement Type Selection Process
… networks, the two prevalent types of pavements considered during the pavement type selection (PTS) process are flexible and rigid. Thus, these two structures are the most commonly constructed in the road industry. A consideration of a different pavement alternative is proposed in this …