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A three volume report prepared to provide highway engineers a ready reference on overlay design procedures. The first volume summarizes major overlay procedures, documenting their development and the conceptual basis of each and analyzing their sensitivity to required input data. Volume 2 contains the results of a questionnaire concerning use of overlay design procedures by state agencies and appendices for the first volume including the figures for the sensitivity analysis. Volume 3 contains a discussion of the evaluation procedure needed for determining if an overlay is required, the basic requirements of an overlay design procedure, reflection crack concerns, preoverlay repair recommendations, selection of the proper overlay type, and timing of overlay construction.
A three volume report prepared to provide highway engineers a ready reference on overlay design procedures. The first volume summarizes major overlay procedures, documenting their development and the conceptual basis of each and analyzing their sensitivity to required input data. Volume 2 contains the results of a questionnaire concerning use of overlay design procedures by state agencies and appendices for the first volume including the figures for the sensitivity analysis. Volume 3 contains a discussion of the evaluation procedure needed for determining if an overlay is required, the basic requirements of an overlay design procedure, reflection crack concerns, preoverlay repair recommendations, selection of the proper overlay type, and timing of overlay construction.
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.
This synthesis will be of interest to pavement designers and others concerned with the design of asphalt concrete overlays. Information is presented on reasons for overlaying a pavement and on the vaious methods available for design of an asphalt overlay. A pavement overlay may be required because of inadequate ride quality, excessive pavement distress, reduced friction between tire and pavement, high user costs, or inadequate structural capacity for planned use. This report of the Transportation Research Boad discusses the current methods used for designing asphalt concrete overlays with emphasis on deflection-based and analytical procedures.