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Showing 1 to 20 of 58 for “"Flexible Pavements"”.
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Nondestructive Testing of Flexible Pavements
Made available in DSpace on 2014-12-13T19:31:53Z (GMT). No. of bitstreams: 1 7915436.pdf: 6807537 bytes, checksum: b36e1dff498563023bf3d71d83234b9e (MD5) Previous issue date: 1979
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Development of potholes from cracks in flexible pavements
… and deflections associated with the cracks in flexible pavement and the formation of potholes. A crack on a flexible pavement surface is a prerequisite for a pothole formation and progression. Three types of cracks, namely, transverse, longitudinal and alligator cracks are taken into …
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Characterization of Anisotropic Granular Layer Behavior in Flexible Pavements
A laboratory testing protocol and analytical solution technique have been developed based on theories of elasticity to determine the cross-anisotropic material properties of unbound granular materials from triaxial repeated load testing with using UI-FastCell which has custom designed for testing …
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Laboratory performance of geogrid and geotextile reinforced flexible pavements
Geotextile and geogrid reinforcement in flexible pavements were evaluated to determine potential benefits. Laboratory pavement sections were constructed, tested, and analyzed to assess the performance of reinforced pavement sections compared to sections without geosynthetic reinforcement. The …
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Designing Operations of Geocomposite Membrane Installation in Flexible Pavements
… are currently being incorporated in flexible pavement systems to improve their performance. However, geosynthetics must be used in the correct application and installed properly in order to produce good results. One of the newly developed geosynthetics is geocomposite membrane that …
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Development of a Mechanistic Model for Geogrid Reinforced Flexible Pavements
… for the analysis of geogrid base reinforced flexible pavements and to investigate the response benefit of geogrid-reinforcement. This is an axisymmetric finite element structural model that considers the nonlinear, stress dependent pavement foundation geomaterials, i.e., unbound base …
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Subgrade Soil Evaluation for the Design of Airport Flexible Pavements
The concepts and procedures developed in this study are based on a comprehensive laboratory testing conducted with the National Airport Pavement Test Facilities (NAPTF) cohesive subgrade soils. NAPTF full-scale pavement data will be used to validate the concepts and procedures.
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Effect of roughness-induced dynamic wheel loading on flexible pavements
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-05-01
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Mechanistic-Empirical Pavement Design Procedure For Geosynthetically Stabilized Flexible Pavements
… the performance of geosynthetically stabilized flexible pavements. The California Bearing Ratio (CBR) of the subgrade after construction was approximately 8%. The pavement section is was divided into nine individual sections, each approximately 15 m long. Sections one through three have a …
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Performance Analysis of Airport Flexible Pavements Subjected to New Generation Aircraft
"The HWD Deflection Basin Parameters (DBPs) were successfully used to characterize the structural degradation of NAPTF test sections. The ILLI-PAVE structural model was validated for NAPTF by comparing measured (dynamic sensors and HWD) and computed pavement structural responses. The damage …
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Performance and Economic Analysis of Flexible Pavements in Lake County, Illinois
Made available in DSpace on 2014-12-10T22:22:05Z (GMT). No. of bitstreams: 1 7412036.pdf: 13638799 bytes, checksum: 3ade13706973c4745df2fb7738692e1d (MD5) Previous issue date: 1973
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Numerical modeling of roughness-induced dynamic tire loading on flexible pavements
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-05-01
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Effectivess of Using Geotextiles in Flexible Pavements: Life-Cycle Cost Analysis
… benefits of using geotextile in secondary road flexible pavement. In this study, a comprehensive life cycle cost analysis framework was developed and used to quantify the initial and the future cost of 25 representative design alternatives. A 50 year analysis cycle was used to compute the …
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Three-Dimensional Finite Element Analysis of Flexible Pavements Considering Nonlinear Pavement Foundation Behavior
… axisymmetric and three-dimensional analyses of flexible pavements. To properly characterize the resilient behavior of pavement foundations, nonlinear stress-dependent modulus models have been programmed in a User Material Subroutine (UMAT) in the general-purpose finite element program …
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Performance-based evaluation of unbound aggregates affecting mechanistic response and performance of flexible pavements
… foundation layers. Their primary function in flexible pavements is to distribute wheel loads and provide adequate protection of the subgrade. However, the empirical strength based quality evaluations and current “recipe-based” specifications have little direct consideration of the actual …
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Development and validation of a stress-based procedure for the design of military flexible pavements
… a new stress-based design procedure for military flexible airfield pavements. This proposed new procedure is based on the U.S. Army Corps of Engineers California Bearing Ratio (CBR) design methodology. The CBR design methodology has its roots on a very simple, but still reasonable theoretical …
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Sustainable Material Solution for Flexible Pavements; Performance Evaluation and Impact Assessment of Utilizing Multiple Recycled Materials in HMA
The demand for pollution-free and recyclable engineering materials has been increased as the cost of energy and environmental concerns have risen. Green material design can lead to better environmental quality and sustainability of civil infrastructure. Road construction is one of the largest …
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Performance Quantification of Interlayer Systems in Flexible Pavements Using Finite Element Analysis, Instrument Response, and Non Destructive Testing
This study quantifies the benefits of two interlayer systems (steel reinforcing netting and a newly-designed geocomposite membrane) in different pavement applications. Steel reinforcing netting and geocomposite membrane have been installed at the Virginia Smart Road in four different sections. …
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Development of domain integral and generalized finite element methods for three dimensional analysis of near-surface cracking in flexible pavements
… bottom-up fatigue cracking of relatively thin flexible pavements, where tensile stresses and strains govern the behavior at the asphalt layer. However, elastic theories are incapable of predicting other pavement distresses, including near-surface cracking. Similarly, finite element method, …
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