Download or read book Evaluation of Resilient Moduli and Layer Coefficients of Aggregate Materials for AASHTO Flexible Pavement Design written by Ping Tian and published by . This book was released on 1998 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Resilient Moduli of Raw and Stabilized Aggregate Bases and Evaluation of Layer Coefficients for AASHTO Flexible Pavement Design written by Musharraf M. Zaman and published by . This book was released on 1998 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive study involving laboratory testing of resilient moduli (MR) of aggregate materials, determination of layer coefficients, and their application in AASHTO flexible pavement design was conducted. Three coarse aggregates, namely, Richard Spur (RS), Sawyer, and Meridian, that are commonly used as subbase/base of roadway pavements in Oklahoma were selected.

Download or read book Evaluation of Procedure to Assign Structural Layer Coefficients for Use in Flexible Pavement Design written by Harold L. Von Quintus and published by . This book was released on 2007 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Evaluation of Resilient Moduli and Layer Coefficients of a Coal Ash Stabilized Marginal Aggregate Base for AASHTO Flexible Pavement Design written by Kundan Kumar Pandey and published by . This book was released on 1996 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book AASHTO Guide for Design of Pavement Structures 1993 written by American Association of State Highway and Transportation Officials and published by AASHTO. This book was released on 1993 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Layer Coefficients for New and Reprocessed Asphaltic Mixes written by and published by . This book was released on 2000 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Estimating Stiffness of Subgrade and Unbound Materials for Pavement Design written by Anand J. Puppala and published by Transportation Research Board. This book was released on 2008 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: At head of title: National Cooperative Highway Research Program.

Download or read book Layer Coefficients for Flexible Pavements written by Samuel H. Carpenter and published by . This book was released on 1990 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mechanistic empirical Pavement Design Guide written by American Association of State Highway and Transportation Officials and published by AASHTO. This book was released on 2008 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rational Determination of Pavement Layer Structural Coefficients written by Eddie Y. J. Chou and published by . This book was released on 1999 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seven flexible pavements ranging from interstate to state route are selected. Three different approaches are employed. The first two use the resilient modulus of the material to estimate its structural coefficient. In the first approach, cored specimens are obtained from each of the pavement sections and the resilient moduli of in-service 301 and 446/448 materials are determined in the laboratory. The second approach backcalculates layer elastic modulus from measured pavement deflection. The third approach determines the structural coefficient from the AASHTO flexible pavement performance equation based on traffic and serviceability history data.

Download or read book Implication of Aggregates in the Design Construction and Performance of Flexible Pavements written by Hans G. Schreuders and published by ASTM International. This book was released on 1989 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Procedure to Estimate Subgrade Resilient Modulus for Use in Pavement Structural Design written by Harold L. Von Quintus and published by . This book was released on 2007 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Kansas Department of Transportation (DOT) uses the 1993 DARWin version of the 1986 AASHTO Guide to design rigid and flexible pavements. One of the inputs needed for the flexible pavement design procedure is the modulus of the subgrade soils, which has an effect on the total pavement thickness. Different procedures can be used to estimate the effective roadbed resilient modulus for flexible pavement design and effective modulus of subgrade reaction for rigid 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 estimate the effective subgrade resilient modulus was completed. This report provides the results of that evaluation.

Download or read book Mechanistic Evaluation and Calibration of the AASHTO Design Equations and Mechanistic Analysis of the SHRP Asphalt Surfaced Pavement Sections written by Gilbert Y. Baladi and published by . This book was released on 1994 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanistic evaluation of the American Association of State Highway and Transportation Officials (AASHTO) flexible design equations was conducted by using 243 artificial pavement sections with various layer properties, roadbed soil modulus, and traffic volumes. A mechanistic-based modification procedure of the effects of the AASHTO drainage coefficient is presented. A nomograph for estimating the effects of drainage coefficients on the expected life of the pavement structures is also presented and discussed. Finally, the results of the backcalculated layer moduli of some of the Strategic Highway Research Program asphalt surfaced General Pavement Studies sections are presented and the accuracy of the values briefly discussed.

Download or read book Design Pamphlet for the Determination of Layered Elastic Moduli for Flexible Pavement Design in Support of the 1993 AASHTO Guide for the Design of Pavement Structures written by Harold L. Von Quintus and published by . This book was released on 1997 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: This design pamphlet details suggested procedures to determine the design resilient modulus of different pavement materials in support of the 1993 American Association of State Highway and Transportation Officials (AASHTO) Guide for the Design of Pavement Structures. These suggested procedures do consider the seasonal variation of resilient moduli to estimate structural layer coefficients for flexible pavement design.

Download or read book Development of Flexible Pavement Design Parameters for Use with the 1993 AASHTO Pavement Design Guidelines written by and published by . This book was released on 2003 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rigid and Flexible Pavement Design and Analysis written by and published by Transportation Research Board National Research. This book was released on 1989 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Estimation of Layer Coefficients for Flexible Pavement Design and Development of a Practical and Rational Mix design written by and published by . This book was released on 1994 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pavement layer coefficients had been identified as essential parameters to use the 1986/1993 AASHTO Guide for Design of Pavement Structures (AASHTO guide) in Rhode Island. Layer coefficients of granular subbase materials were estimated using the direct method recommended by AASHTO Guide. Resilient moduli were determined using a pneumatic testing system. Coefficients based on resilient moduli ranged from 0.08 to 0.14, and the average was 0.12 for eight subbase samples in Rhode Island. The pneumatic testing system was also used to determine resilient moduli of bound layeres. Based on results of a series of testing, layer coefficients were estimated using moduli at the loading magnitude of 20% of tensile strength and loading frequency of 0.5Hz. Recommended coefficients for wearing course (Class I-1), modified binder, and modified asphalt base were 0.40, 0.42, and 0.43, respectively. If all asphalt bound layers will be analyzed as one layer, the coefficient of 0.41 was recommended for pavement design and analysis in Rhode Island. Field study including FWD testing was performed to verify laboratory test results. Laboratory determined moduli were compared with backcalculated moduli based on FWD deflection data. Generally, FWD moduli are consistently higher than laboratory moduli with a wide range of variability. For the covering abstract of this conference, see IRRD number 863140.