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Showing 1 to 14 of 14 for “"pavement distresses"”.
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Performance of the Crack, Seat, and Overlay Rehabilitation Technique for Concrete Pavements in California
… for evaluation based on age and location. Pavement distresses and traffic data for these sections were collected and analyzed. Prior to beginning analysis this data was checked for errors, outliers, and omissions. The analysis consisted of checking the data for correlations among distresses …
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Investigation of cracking resistance of recycled Superpave mixtures
… has become increasingly popular for asphalt pavement construction. Although reclaimed asphalt pavement (RAP) and recycled asphalt shingles (RAS) are typically used in hot-mix asphalt, increasing the amount of RAP and RAS materials increases the potential for premature pavement distresses, …
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Evaluation of In-Situ variability of concrete pavement characteristics and their effect on performance
Pavement performance prediction must account for uncertainties in pavement characteristics, climate, traffic loading, etc. Past research identified that concrete thickness and flexural strength were two pavement characteristics that significantly affected transverse cracking in Jointed Plain …
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Sensitivity Analysis Of Aashto's 2002 Flexible And Rigid Pavement Design Methods
Over the years pavement design has been based on empirical equations developed from the American Association of State Highway Transportation Officials (AASHTO) road tests. The various editions of the AASHTO pavement design guide have served well for several decades; nevertheless many serious …
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Linear viscoelastic characteristics of Michigan asphalt mixtures and the effect of sample size on material properties
The Mechanistic-Empirical Pavement Design Guide (M-E PDG) is becoming the state-of-the-practice in both newly constructed and rehabilitated pavement designs. A number of different material inputs are required by the M-E PDG, and accurate measurement of these inputs is crucial for the accuracy of …
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USE OF CELLULAR CONCRETE FOR AIR CONVECTION EMBANKMENT TO PROTECT PERMAFROST FOUNDATION IN COLD REGIONS
… has been used to mitigate thaw settlement, and pavement distresses caused by climatic extremes in permafrost regions for over three decades. However, the desired crushed rocks needed for ACE are not readily available in many areas of interior Alaska. Burdened by the need to ship suitable rocks …
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Adjustment factors for MEPDG pavement responses considering three- dimensional analysis and wide-base tire
The Mechanistic-Empirical Pavement Design Guide (MEPDG) provides a superior methodology as compared to its predecessor in the design and analysis of pavement structures. The mechanistic (MEDPG analysis) calculates critical pavement responses due to pavement-tire interactions. On the other hand, the …
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On Cross-Anisotropy of Flexible Pavement Layer Materials for Improved Pavement Responses
<p>Pavement layer materials are typically assumed to be isotropic in determining pavement responses, such as stress and strain. The main benefit of the isotropic assumption is that stiffness defined by modulus of elasticity (E-value) is equal in all directions. In reality, stiffness along vertical …
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Developing a Design Procedure for Pavement Millings for New and Rehabilitated Unpaved Gravel Roads
… has successfully been using reclaimed asphalt pavement (RAP) millings to surface low volume roads for more than two decades. The design of millings surfaced roads has been done based on field experience. The primary objective of this study was to provide design guidelines for construction and …
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Development of domain integral and generalized finite element methods for three dimensional analysis of near-surface cracking in flexible pavements
… 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, which is …
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Prediction of in-situ asphalt mixture density using ground penetrating radar: theoretical development and field verification
… important to the performance of flexible pavements: density that is too high, or too low, may cause early pavement distresses. Traditionally, two methods have been commonly used for in-situ asphalt mixture density measurement: laboratory testing on field-extracted cores, and in-situ …
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Development of a New Environmentally Friendly Glass Fibre Reinforced Cold Mix Microasphalt with High Resistance to Cracking and Deformation.
Nowadays, the pavement industry plays an important role in the global transportation infrastructure and stimulates economic growth in both advanced and emerging countries. Nevertheless, most of these transportation infrastructures are paved with using hot mix asphalt (HMA) technology. Apropos to …
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A Pavement Structural Capacity Index for Use in Network-level Evaluation of Asphalt Pavements
… a structural index for use in network-level pavement evaluation, which facilitates the inclusion of the pavements structural condition in many pavement management applications. The primary goal of network-level pavement management is to maintain an acceptable condition of the pavements within …
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Verification of Mechanistic-Empirical Pavement Deterioration Models Based on Field Evaluation of In-Service Pavements
… and four composite) high performance in-service pavements designated as high-priority routes to verify the applicability of the Mechanistic Empirical (M-E) models to high performance pavements in the Commonwealth of Virginia. The structural evaluation included: determination of layer thicknesses …