Evaluation Of Structural Layers In Flexible Pavement
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| Author | : Robert W. Grau |
| Publisher | : |
| Total Pages | : 128 |
| Release | : 1973 |
| Genre | : Pavements |
| ISBN | : |
The investigation was conducted to evaluate the effectiveness of stabilized structural layers (lime- and cement-stabilized layers) in pavement performance and to determine the comparative performance between a full-depth high-quality crushed stone and the stabilized layers during simulated aircraft traffic. The comparative performance between the stabilized layers and similar pavements consisting of unbound granular base and subbase materials previously tested in the Multiple Wheel Heavy Gear Load (MWHGL) test section was also determined. A test section was constructed within two items of the existing MWHGL test section at the U.S. Army Engineer Waterways Experiment Station in order to use the existing 4-CBR clay subgrade.
| Author | : R. W. Grau |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 1973 |
| Genre | : Pavements |
| ISBN | : |
| Author | : Harold L. Von Quintus |
| Publisher | : |
| Total Pages | : 38 |
| Release | : 2007 |
| Genre | : Pavements, Asphalt |
| ISBN | : |
The Kansas Department of Transportation (DOT) uses the 1993 DARWin version of the 1986 AASHTO Guide to design flexible pavements and rehabilitation strategies of flexible pavements. One of the inputs needed for the flexible pavement design procedure is the structural layer coefficient for each pavement layer. The Kansas DOT procedure to assign structural layer coefficients was developed years ago and based on an analysis of flexible pavement performance data and layer properties. It has been recently suggested that the Kansas DOT increase the structural layer coefficients because of changes in material and construction specifications. Different procedures can be used to estimate the structural layer coefficients for flexible pavement design. As part of the study entitled Determination of the Appropriate Use of Pavement Surface History in the KDOT Life-Cycle Cost Analysis Process an evaluation of the procedure that Kansas DOT uses to assign structural layer coefficients to different pavement materials was completed. This report provides the results of that evaluation.
| Author | : E. J. Yoder |
| Publisher | : John Wiley & Sons |
| Total Pages | : 732 |
| Release | : 1991-01-08 |
| Genre | : Technology & Engineering |
| ISBN | : 9780471977803 |
Presents a complete coverage of all aspects of the theory and practice of pavement design including the latest concepts.
| Author | : Waterways Experiment Station (U.S.) |
| Publisher | : |
| Total Pages | : 106 |
| Release | : 1977 |
| Genre | : Pavements |
| ISBN | : |
| Author | : American Association of State Highway and Transportation Officials |
| Publisher | : AASHTO |
| Total Pages | : 622 |
| Release | : 1993 |
| Genre | : Pavements |
| ISBN | : 1560510552 |
Design related project level pavement management - Economic evaluation of alternative pavement design strategies - Reliability / - Pavement design procedures for new construction or reconstruction : Design requirements - Highway pavement structural design - Low-volume road design / - Pavement design procedures for rehabilitation of existing pavements : Rehabilitation concepts - Guides for field data collection - Rehabilitation methods other than overlay - Rehabilitation methods with overlays / - Mechanistic-empirical design procedures.
| Author | : Thomas D. White |
| Publisher | : Transportation Research Board |
| Total Pages | : 65 |
| Release | : 2002 |
| Genre | : Pavements |
| ISBN | : 0309067219 |
| Author | : Nari K. Vaswani |
| Publisher | : |
| Total Pages | : 24 |
| Release | : 1972 |
| Genre | : Pavements |
| ISBN | : |
| Author | : Ralph William Culley |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 1965 |
| Genre | : Pavements |
| ISBN | : |
The aim of this investigation was to evaluate the effect of a lower bituminous layer in an overlay pavement system. The evaluation was made from a qualitative comparison of the reactions of an overlay system / when subjected to a static load, to those of a conventional system when subjected to the same loading. Maximum deflections were measured and used for calculation of the modular ratio and radius of curvature of longitudinal deflection bowls. The maximum deflections and the radii of curvature were determined at the interfaces of the various layers of the pavement structures. The results of the investigation indicated that, because of the lower bituminous layer in the overlay structure, the overlay structure was stiffer, and therefore less affected by applied loads, than the conventional structure. The major conclusion was that a bituminous layer, vhen located at depth in an overlay pavement structure, is a superior structural component than granular subbase at the same depth.
| Author | : N. Paul Khosla |
| Publisher | : |
| Total Pages | : 116 |
| Release | : 1986 |
| Genre | : Pavements, Flexible |
| ISBN | : |
