Download or read book Concepts for Developing a Nondestructive Testing Based Asphalt Concrete Overlay Thickness Design Procedure written by Marshall R. Thompson and published by . This book was released on 1982 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Concepts for Developing an NDT Based Asphalt Concrete Overlay Thickness Design Procedure written by Marshall R. Thompson and published by . This book was released on 1982 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Basic Guide to Overlay Design Using Nondestructive Testing Equipment Data written by Vernon R. Turner and published by . This book was released on 1990 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this paper is to provide a basic and concise guide to designing asphalt concrete (AC) overlays over existing AC pavements. The basis for these designs is deflection data obtained from nondestructive testing (NDT) equipment. This data is used in design procedures which produce required overlay thickness or an estimate of remaining pavement life. This guide enables one to design overlays or better monitor the designs being performed by others. This paper will discuss three types of NDT equipment, the Asphalt Institute Overlay Designs by Deflection Analysis and by the effective thickness method as well as a method of estimating remaining pavement life, correlations between NDT equipment and recent correlations in Washington State. Asphalt overlays provide on of the most cost effective methods of improving existing pavements. Asphalt overlays can be used to strengthen existing pavements, to reduce maintenance costs, to increase pavement life, to provide a smoother ride, and to improve skid resistance.
Download or read book Asphalt Overlay Design Procedures written by Fred N. Finn and published by Transportation Research Board National Research. This book was released on 1984 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Nondestructive Testing of Pavements and Backcalculation of Moduli written by ASTM Committee D-18 on Soil and Rock. Subcommittee D-4 on Road and Paving Materials and published by ASTM International. This book was released on 1994 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proceedings of June 1993 international symposium held in Atlanta, Georgia, called specifically to develop and standardized evaluation procedures for non-destructive methods of testing pavements. The 29 papers discuss analytical models and techniques, measurement and calculation techniques in the field and laboratory, problems and errors associated with backcalculation methods and design parameters, and testing for other pavement uses. Also includes a history of the quest for a standard and the status of that effort. Reproduced from typescripts. Annotation copyright by Book News, Inc., Portland, OR
Download or read book Development of Rational Overlay Design Procedures for Flexible Pavements written by James A. Crovetti and published by . This book was released on 2005 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Application of Nondestructive Testing to Pavement Evaluation and Overlay Design written by Cheryl Allen Richter and published by . This book was released on 1987 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Developing NDT based Overlay Thickness Design Procedures for Alabama s Flexible Pavements written by Jay Lindly and published by . This book was released on 1992 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pavement Overlay Design Procedures and Assumptions Analysis of existing procedures written by and published by . This book was released on 1986 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pavement Overlay Design Procedures and Assumptions written by and published by . This book was released on 1986 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pavement Overlay Design Procedures and Assumptions written by and published by . This book was released on 1986 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Mechanistic Method for Evaluation of Layer Moduli and Overlay Design written by NA. Ali and published by . This book was released on 1989 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nondestructive testing (NDT) has long been used to evaluate flexible pavement structures. The increasing popularity of nondestructive pavement evaluation methods, based on interpretation of surface deflection, has promoted the development of several types of NDT devices. One such device is the falling weight deflectometer (FWD), which is used for the purpose of pavement evaluation in North Carolina. This paper presents a methodology for the testing, evaluation, and determination of overlay thickness required for a given pavement section and subgrade condition. The overlay design procedure presented makes use of some of the recent developments for analysis and design of asphaltic concrete overlays. The evaluation of in-service pavements includes the use of the deflection parameters developed by testing of the existing pavements with known geometry for determining the moduli of various pavement layers and the required overlay thickness. The method utilizes empirical values and the VESYS structural subsystem as an integral approach complementary to each other.
Download or read book Mechanistic Design Concepts for Conventional Flexible Pavements written by R. P. Elliott and published by . This book was released on 1985 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanistic design concepts for conventional flexible pavement (asphalt concrete (AC) surface + granular base/subbase) for highways are proposed and validated. The procedure is based on ILLI-PAVE, a stress dependent finite element computer program, coupled with appropriate transfer functions. Two design criteria are considered: AC flexural fatigue cracking and subgrade rutting. Fatigue cracking is controlled by limiting the tensile strain at the bottom of the AC layer. Subgrade rutting is controlled by limiting the stress-ratio at the granular layer-subgrade interface. Algorithms were developed relating pavement response parameters (stresses, strains, deflections) to AC thickness, AC moduli, granular layer thickness, and subgrade moduli. Extensive analyses of the AASHO Road Test flexible pavement data are presented supporting the validity of the proposed concepts.
Download or read book Determining Asphaltic Concrete Pavement Structural Properties by Nondestructive Testing written by National Research Council (U.S.). Transportation Research Board and published by Transportation Research Board. This book was released on 1990 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book State of the art on Pavement Overlay Design Procedures Annotated bibliography written by and published by . This book was released on 1983 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guide for Pavement Friction written by and published by AASHTO. This book was released on 2008 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report contains guidelines and recommendations for managing and designing for friction on highway pavements. The contents of this report will be of interest to highway materials, construction, pavement management, safety, design, and research engineers, as well as others concerned with the friction and related surface characteristics of highway pavements.
Download or read book Mechanistic Design Concepts for Full depth Asphalt Concrete Pavements written by M. Gomez and published by . This book was released on 1984 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: A mechanistic design procedure for Full-Depth asphalt concrete AC pavements for highways is proposed and validated. The procedure is based on ILLI-PAVE, a stress dependent finite element computer program, coupled with appropriate transfer functions. Two material design criteria are considered: AC flexural fatigue cracking and subgrade rutting. Fatigue cracking is controlled by limiting the tensile strain at the bottom of the AC-subgrade interface.
