Results 251 to 260 of about 65,195 (310)

Geogrid in Flexible Pavements

Transportation Research Record: Journal of the Transportation Research Board, 2008
Full-scale accelerated testing was used to provide new insight into quantifying the effectiveness of geogrids on low-volume flexible pavement performance. Although several previous studies report that geogrids improve pavement performance by enhancing structural capacity and reducing distress potential, the new study addresses how to maximize the ...
Imad L. Al-Qadi, Samer H. Dessouky, Jayhyun Kwon, Erol Tutumluer   +3 more
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Optimal Flexible Pavement Design

Transportation Engineering Journal of ASCE, 1978
This paper proposes a model and solution procedure for the optimal design of flexible pavements that finds the best cost achievable for each possible combination of materials without actually computing the layer thicknesses. The primal-dual relationships and complementary slackness conditions of linear programming are used to reduce the required number
Alberto Garcia-Diaz, Judith S. Liebman
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Unified Pavement Distress Index for Managing Flexible Pavements

Journal of Transportation Engineering, 1992
One of the innovative approaches for maintaining and rehabilitating the nation's highways is to develop and implement some form of pavement management system (PMS). This paper documents results of a survey on PMS use in the United States. In addition, a simple method for a PMS based on priority ranking is presented.
C. H. Juang, S. N. Amirkhanian
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Flexible Pavement Thickness Design

1988
The thickness design of highway pavements requires the following large number of complex factors to be considered. (1) The magnitude and number of repetitions of the applied wheel loads and the contact area between the tyre carrying the load and the road surface.
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Numerical Modeling of Flexible Pavements

International Review on Modelling and Simulations (IREMOS), 2015
The road is a civil engineering structure that is not computed as the other structures of the field, for all stakeholders in its design elements characterized by their multidisciplinary settings in their values and behavior. The roadway is a complex system in its structure composed of various heterogeneous materials, its unexpected behavior due to the ...
N. Bouacha, H. Chelghafe, A. Seboui
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Flexible pavement drainage system effectiveness

Construction and Building Materials, 2019
Abstract Moisture can significantly affect flexible (asphalt) pavement performance. As such, it is important to remove moisture as quickly as possible from such pavements, especially to avoid allowing moisture into the pavement subgrade. Using an appropriate drainage system is one method to remove moisture from pavement structures.
Masoud Seyed Mohammad Ghavami, Maryam Sadat Hosseini, Pablo D. Zavattieri, John E. Haddock   +3 more
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Cracking Mechanism of Flexible Pavements

Transportation Engineering Journal of ASCE, 1972
THE PAPER DEALS WITH THE CRACKING OF FLEXIBLE PAVEMENTS CAUSED BY SHRINKAGE DUE TO DRYING OF THE SUBGRADE. A CRACKING MECHANISM IN PAVEMENTS IS PROPOSED, BASED ON THE PRINCIPLE THAT CRACKS FIRST APPEAR IN THE SUBGRADE AND ARE AFTERWARDS REFLECTED THROUGH THE ASPHALTIC LAYER.
Jacob Uzan, Moshe Livneh, Elisha Shklarsky   +2 more
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Flexible Pavement Design Criteria

Journal of the Air Transport Division, 1962
Research in developing California Bearing Ratio method of pavement design; working reference by which design criteria for any desired loading can be produced; manner in which load, number, and spacing of wheels, tire pressure, and number of load repetitions can be specifically treated to obtain design curve relating CBR to required design thickness is ...
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Flexible Pavement Design Criterion

1968
Our recent report on "Rational Analysis of Kentucky Flexible Pavement Criterion," November 1968, presented theoretical treatments of current design curves – which enabled transformation of the current curves into companion sets of curves embodying alternative proportions of bituminous concrete and dense-graded aggregate base.
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Permanent Deformation in Flexible Pavements

Journal of Transportation Engineering, 2004
This paper presents a mechanistic-empirical framework for evaluating permanent deformation in flexible pavements. The procedure uses rational material properties and can be used as an analysis tool, as a companion to the design method. The material properties required are (1) the stress dependent modulus of the pavement layers, asphalt concrete and ...
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