Download or read book Guidelines for PCC Inputs to AASHTOWare Pavement ME written by and published by . This book was released on 2014 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this research study was to develop guidelines for portland cement concrete (PCC) material inputs to the AASHTOWare Pavement ME Design program. The AASHTOWare Pavement ME Design is the software program used by the Mississippi Department of Transportation (MDOT) to develop pavement design alternatives based on the mechanistic-empirical pavement design guide (MEPDG) procedure originally developed under National Cooperative Highway Research Program (NCHRP) Projects 1-37A, 1-40D, and 20-07/Task 288 & 327. MDOT has conducted several research projects to support the implementation of the MEPDG and for increasing the accuracy of the distress prediction models calibrated for local conditions and material sources. The current project focuses on PCC material inputs that represent the mix designs, cementitious materials, and the aggregate sources that will be used in future paving projects. This report provides a summary of laboratory test results of 20 mix designs that include five different aggregate sources and four different options for supplementary cementitious materials (SCM) for partial cement replacement. The laboratory test results represent level 1 and 2 PCC material inputs and report the flexural strength, compressive strength, elastic modulus, poisson's ratio, coefficient of thermal expansion (CTE), and percent length change measurements. Strength and modulus data, are reported for 7, 14, 28, and 90 days as required by the MEPDG. The CTE measurements are reported at 28-days, while the shrinkage length change measurements are reported for ages of 7, 11, 14, 21, 35, 63, 119, and 231 days. Level 2 correlation equations were developed based on compressive strength and other index properties to estimate flexural strength and elastic modulus. In general, these models demonstrate a slight deviation for the default level 2 models used in the global calibration of the MEPDG. Level 2 equations were also developed for each aggregate type and it is recommended that future efforts by MDOT for the recalibration of the rigid pavement distress prediction models should examine the sensitivity of these level 2 correlation equations and provide recommendations in the MDOT Design Manual.
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 Continuously Reinforced Concrete Pavement written by Jeff Roesler and published by . This book was released on 2013 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the completion of the Mechanistic-Empirical Pavement Design Guide (MEPDG) and the recent designation of the MEPDG software as "AASHTOWare® Pavement ME Design," the standard for CRCP design has undergone significant changes from the 1993 AASHTO Pavement Design Guide. CRCP performance problems observed in the past, such as material durability, base erosion, steel placement and content, and construction methods have been addressed, and the improved pavement design procedure reflects modern construction practices, pavement layer materials, specifications, and best concrete pavement engineering practices. The primary purpose of this technical summary is to provide engineers with the basic mechanistic-empirical design background and criteria utilized in the AASHTO Pavement ME Design software for CRCP. Secondly, this technical summary describes the key CRCP design inputs to assist the pavement engineer through the CRCP design process with the AASHTO Pavement ME Design software, including identifying the most sensitive design inputs and features. Finally, example problems are included in this document to demonstrate the robustness of the new design software for both new CRCP and CRCP overlays in different climatic zones. It is expected that as the mechanistic-empirical design procedure for CRCP continues to evolve, refinements in the failure mechanisms and data inputs likely will be made, providing even greater reliability in the design process.
Download or read book Implementation of the AASHTO Mechanistic empirical Pavement Design Guide and Software written by and published by . This book was released on 2014 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction -- Mechanistic-Empirical Pavement Design Guide and AASHTOWare Pavement ME Design (TM) Software Overview -- Survey of Agency Pavement Design Practices -- Common Elements of Agency Implementation Plans -- Case Examples of Agency Implementation -- Conclusions.
Download or read book Guide for the Local Calibration of the Mechanistic empirical Pavement Design Guide written by and published by AASHTO. This book was released on 2010 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guide provides guidance to calibrate the Mechanistic-Empirical Pavement Design Guide (MEPDG) software to local conditions, policies, and materials. It provides the highway community with a state-of-the-practice tool for the design of new and rehabilitated pavement structures, based on mechanistic-empirical (M-E) principles. The design procedure calculates pavement responses (stresses, strains, and deflections) and uses those responses to compute incremental damage over time. The procedure empirically relates the cumulative damage to observed pavement distresses.
Download or read book Development of DARWin ME Design Guideline for Louisiana Pavement Design written by Zhong Wu and published by . This book was released on 2016 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Abstract: The AASHTOWare Pavement METM Design is the next generation of AASHTO pavement design software, which builds upon the newly developed NCHRP Mechanistic-Empirical Pavement Design Guide (MEPDG). Pavement METM reflects a major change in the methods and procedures engineers use to design pavement structure and represents the most current advancements in pavement design. In preparation for DOTD to adopt the new design guide, there is an urgent need to evaluate the MEPDG pavement design software based on typical Louisiana pavement structures and local conditions. This study selected a total of 162 projects (pavement sections) from the existing DOTD highway network for the evaluation of MEPDG pavement design, local calibration, and validation of Pavement ME in Louisiana. The selected projects consisted of flexible pavements with five types of base (asphalt concrete base, rubblized PCC base, crushed stone or recycled PCC base, soil cement base, and stabilized base with a stone interlayer), rigid pavements with three types of base (unbound granular base, stabilized base, and asphalt mixture blanket), and HMA overlay on top of existing flexible pavements. Pavement design information including structure, materials, and traffic were retrieved from multiple network-level data sources at DOTD. A Louisiana default input strategy of Pavement ME that reflects Louisiana’s condition and practice was developed from results of sensitivity analysis. In addition, based on a consensus distress survey and pavement management system (PMS) distress triggers, the design reliability and performance criteria were established for different highway classes in Louisiana. The predicted performance from the Pavement ME was then compared with the corresponding measured performance retrieved from PMS. The analysis results indicate that the Pavement ME’s nationally-calibrated distress models generally under-predict alligator cracking, but over-predict rutting for DOTD’s flexible pavement types. For rigid pavements, Pavement ME over-predicts slab cracking but under-predicts joint faulting. For those nationally-calibrated distress models that showed constant bias and large variation, local calibration was carried out against the performance data retrieved from PMS. After the local calibration, the Pavement ME designs were verified by additional projects outside of the evaluation projects’ pool. Based on the results of this study, an implementation guideline document was prepared. The document contains all necessary design input information and calibration coefficients for DOTD to use the latest MEPDG software on a day to day basis for design and analysis of new and rehabilitated pavement structures in Louisiana."--Technical report documentation page.
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 Final Report TRC 0302 AASHTO 2002 Pavement Design Guide Design Input Evaluation Study written by Kevin D. Hall and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "A study was performed to assess the relative sensitivity of the models used in the M-E [Mechanistic-empirical] Design Guide to inputs relating to Portland cement concrete (PCC) materials in the analysis of jointed plain concrete pavements (JPCP) and to inputs relating to Hot-Mix Asphalt (HMA) materials in the analysis of flexible pavements."--Abstract.
Download or read book Consideration of Preservation in Pavement Design and Analysis Procedures written by and published by . This book was released on 2015 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: "TRB's National Cooperative Highway Research Program (NCHRP) Report 810: Consideration of Preservation in Pavement Design and Analysis Procedures explores the effects of preservation on pavement performance and service life and describes three different approaches for considering these effects in pavement design and analysis procedures. The report may serve as a basis for developing procedures for incorporating preservation in the American Association of State Highway and Transportation Officials (AASHTO) Mechanistic-Empirical Pavement Design Guide: A Manual of Practice (MEPDG) and the AASHTOWare Pavement ME Design software. Initially, the scope of this project intended to develop procedures for incorporating pavement preservation treatments into the MEPDG design analysis process that would become part of the MEPDG Manual of Practice. However, it was determined that sufficient data were not available to support the development of such procedures. Appendices A through I are available online only." --
Download or read book Final Report TRC 0708 PCC Materials Input Values for Mechanistic empirical Pavement Design Guide written by Kevin D. Hall and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Composite Pavement Systems written by Shreenath P. Rao and published by Transportation Research Board. This book was released on 2013 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental composite pavements were constructed at MnROAD in Minnesota and the University of California Pavement Research Center at Davis, where the pavements were instrumented and monitored under climate and heavy traffic loadings. A composite pavement consisting of HMA over jointed plain concrete also was constructed in the field by the Illinois Tollway north of Chicago. At the Tollway, extensive field surveys were performed on 64 sections of the two types of composite pavements. This project also evaluated, improved, and further validated applicable structural, climatic, material, and performance prediction models, and design algorithms that are included in the AASHTO MEPDG and DARWin-ME, CalME, NCHRP 1-41 reflection cracking, NCHRP 9-30A rutting, and the Lattice bonding model. The current DARWin-ME overlay design procedure for HMA/PCC and a special R21 version of the Mechanistic-Empirical Pavement Design Guide (MEPDG [v.
Download or read book Guidelines for Implementing NCHRP 1 37A M E Design Procedures Literature review written by and published by . This book was released on 2009 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Highway agencies across the nation are moving towards implementation of the new AASHTO Mechanistic-Empirical Pavement Design Guide (MEPDG) for pavement design. The benefits of implementing the MEPDG for routine use in Ohio includes (1) achieving more cost effective and reliable pavement designs, (2) lower initial and life cycle costs to the agency, and (3) reduced highway user impact due to lane closures for maintenance and rehabilitation of pavements. Implementation of the MEPDG is a process that requires time and agency resources (staffing, training, testing facilities including equipment, and so on). A key requirement is validating the MEPDG's nationally calibrated pavement distress and smoothness prediction models when applied under Ohio conditions and performing local calibration if needed. Feasibility of using the MEPDG's national models in Ohio was investigated under this study using data from a limited number of LTPP projects located in Ohio. Results based on limited data showed inadequate goodness of fit and significant bias in a number of the MEPDG new HMA pavement and JPCP performance prediction models. Limited recalibration of these models showed promising results indicating that a full-scale recalibration effort using a more extensive database assembled from projects located throughout the state is feasible.
Download or read book Pavement Design Materials Analysis and Highways written by M. Rashad Islam and published by McGraw Hill Professional. This book was released on 2021-02-05 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: Master the principles, analysis, and design in pavement engineering This student-friendly textbook offers comprehensive coverage of pavement design and highways. Written by two seasoned civil engineering educators, the book contains precise explanations of traditional and computerized mechanistic design methods along with detailed examples of real-world pavement and highway projects. Pavement Design: Materials, Analysis, and Highways shows, step by step, how to apply the latest, software-based AASHTOWare Pavement Mechanistic-Empirical Design method. Each design topic is covered in separate, modular chapters, enabling you to tailor a course of study. Fundamentals of Engineering (FE) sample questions are also provided in each chapter. Coverage includes: Stress-strain in pavement Soils, aggregates, asphalt, and portland cement concrete Traffic analysis for pavement design Distresses and distress-prediction models in flexible and rigid pavement Flexible and rigid pavement design by AASHTO 1993 and AASHTOWare Overlay and drainage design Sustainable and rehabilitation pavement design, pavement management, and recycling Geometric design of highways
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 Thin and Ultra thin Whitetopping written by Robert Otto Rasmussen and published by Transportation Research Board. This book was released on 2004 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 338: Thin and Ultra-Thin Whitetopping summarizes available information to document how state departments of transportation and others are currently using thin and ultra-thin whitetopping overlays among various pavement rehabilitation alternatives. The report covers all stages of the proper application of whitetopping overlays, including project selection, design, materials selection, construction, maintenance, and eventual rehabilitation or replacement.
Download or read book Pavement Analysis and Design written by Yang Hsien Huang and published by . This book was released on 2004 with total page 775 pages. Available in PDF, EPUB and Kindle. Book excerpt: For one/two-semester, undergraduate/graduate courses in Pavement Design. This up-to-date text covers both theoretical and practical aspects of pavement analysis and design. It includes some of the latest developments in the field, and some very useful computer software-developed by the author-with detailed instructions.
Download or read book Guidelines for Implementing NCHRP 1 37A M E Design Procedures Summary of findings implementation plan and next steps written by and published by . This book was released on 2009 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
