Download or read book Evaluation of Long life Concrete Pavement Practices for Use in Florida written by Mang Tia and published by . This book was released on 2012 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Mechanistic-Empirical Pavement Design Guide (MEPDG) Version 1.1 model was used to analyze the performance of three typical concrete pavement designs in Florida to evaluate their suitability for use as long-life concrete pavements and the effects of various design parameters on their performance. Concrete slab thickness, concrete flexural strength, and the aggregate used in the concrete were found to be the three most significant factors affecting the predicted performance of the pavement evaluated. The type of base material and the stiffness of the base material appear to have no significant effect on the predicted performance. The Long-Term Pavement Performance (LTTP) database was used to evaluate the effects of various factors on the performance of Jointed Plain Concrete Pavements (JPCP). Critical stress analysis was also performed on the selected LTPP JPCP selections to determine the maximum stress in the concrete slab under a critical load and temperature condition.
Download or read book Evaluation of Long life Concrete Pavements in the State of Florida written by Cesar David Verdugo and published by . This book was released on 2012 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: A research study was conducted to develop long-life concrete pavement designs with expected service life of over 50 years suitable for use in Florida. Two typical concrete pavement designs used in Florida were evaluated using the MEPDG program to see if they could be used for long-life concrete pavements in Florida. The MEPDG program used was calibrated for the Florida conditions. It was found that these two designs could be used as long-life pavements if the slab thickness was adequate and the concrete properties were right - low elastic modulus, low coefficient of thermal expansion and adequate flexural strength. The concrete with the right properties could be produced if it was made with the right aggregate. Among the three aggregates considered, Brooksville limestone was found to produce the best concrete for this application. DRIP 2.0 software was used to evaluate the drainage conditions for the two pavement designs, which were designated as Type I and Type II designs in this study. The effects of pavement cross slope, number of lanes, base permeability, infiltration rate and effective porosity were studied. Drainage analyses showed that increasing the slope and permeability of the designs would allow the drainage system to work better, as well as, reduce the time-to-drain required. The required combinations of these parameters for satisfactory drainage performance were determined.
Download or read book Economic Evaluation of Long Life Pavements Phase 1 written by European Conference of Ministers of Transport and published by OECD Publishing. This book was released on 2005-03-18 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: With maintenance costs accounting for a large proportion of road budgets, this report assesses the economic and technical feasibility of innovative wearing courses for long life road pavements. While having higher initial costs, such wearing courses ...
Download or read book Summary Report on the Evaluation of Rigid Pavement Long life Strategies written by David Jones (Engineer) and published by . This book was released on 2007 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Concrete Pavement Design and Rehabilitation written by John P. Zaniewski and published by . This book was released on 1986 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: The state of the art of Portland cement concrete pavement evaluation is reviewed with emphasis on the methods applicable to the urban freeway environment. Methods are recommended for texture evaluation, void detection and condition surveys. Data analysis methods useful for the development of pavement performance models are presented. The overall framework for life cycle cost (LCC) analysis is described with recommendations for the development of a LCC method for the Arizona Department of Transportation.
Download or read book Evaluation of Concrete Pavement Performance with Related Cracking And or Voids Under I 10 Concrete Pavement written by Cecil R. Henderson and published by . This book was released on 1987 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Long life Concrete Pavements written by and published by . This book was released on 2007 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development and Implementation of a Performance related Specification for SR 9a Florida written by L. Evans and published by . This book was released on 2008 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary objective of this study was to develop, implement, and evaluate a Level 1 performance-related specification (PRS) for the construction of a jointed plain concrete pavement in the State of Florida. The study included an evaluation of the construction quality levels achieved on recent Florida JPCP projects and the formulation of a Level 1 PRS using the results of the quality evaluation and defined FDOT pavement practices as a basis. The Level 1 PRS defined the sampling and testing requirements for three acceptance quality characteristics (AQCs): thickness, strength, and smoothness. The corresponding performance-based pay factor curves were developed for each AQC. The Level 1 PRS was included as an overriding special provision in the July 2001 letting of the paving project SR 9A (I-295 Leg) in southeast Jacksonville, Florida. Construction of the PRS project took place in 2004–05. Three lanes and tied shoulders were placed in both directions. AQC measurements obtained from the project were used to compute PRS pay factors and establish pay adjustments for the contractor. The higher-than-target (i.e., higher-than-design) quality levels achieved by the contractor resulted in significant pay increases for the contractor under the PRS. Feedback from FDOT and the contractor indicated that this first PRS implementation in Florida was successful, particularly with respect to the layouts of lots and sublots and quality achieved. Several suggestions were received to improve and streamline the PRS process.
Download or read book An Evaluation of Continuously Reinforced Concrete Pavement Design Methods written by Byron Reed Bull and published by . This book was released on 1967 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Integrated Materials and Construction Practices for Concrete Pavement written by and published by . This book was released on 2006 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Manual of integrated material and construction practices for concrete pavements.
Download or read book Concrete Pavement Rehabilitation written by and published by . This book was released on 1997 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Load transfer restoration (LTR) is a rehabilitation technique for increasing the load transfer capability of existing jointed portland cement concrete pavement by placement of dowel bars or other mechanical devices across joints and/or cracks that exhibit poor load transfer.
Download or read book Field Testing and Structural Evaluation of Selected Concrete Pavement Sections in Florida written by M. Tia and published by . This book was released on 1994 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Twenty-four existing concrete pavement sections covering a wide range of performance levels, ages and types of subbase, surface layers and joints were selected for evaluation in order to determine the causes of the problems in the pavements with poor performance. Each section was evaluated by a condition survey, falling weight deflectometer (FWD) tests, laboratory tests on core samples, and a structural analysis. FWD tests were preformed at both midday and midnight. Loads were applied at four different positions on the slab, namely, slab center, slab corner, edge center and joint center. The measured FWD deflections at various locations were then used along with the results of the laboratory tests on the Cored samples and a finite element program, FEACONS IV, to estimate the pavement parameters. With the pavement modeled by the estimated pavement parameters, the maximum stresses caused by critical temperature-loading conditions were computed using the FEACONS IV program. The computed maximum stresses were then compared with the flexural strength of the concrete to evaluate the structural adequacy of each test section.
Download or read book Development of an Effective Methodology for Evaluation of Concrete Pavement Systems written by Kyoung-Soo Eom and published by . This book was released on 1987 with total page 292 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 Evaluation of Concrete Pavement Service Life Using 3D Nonlinear Finite Element Analysis and Nonlinear Fatigue Damage Model written by Alireza Asgari and published by . This book was released on 2005 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gravel Roads written by Ken Skorseth and published by . This book was released on 2000 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this manual is to provide clear and helpful information for maintaining gravel roads. Very little technical help is available to small agencies that are responsible for managing these roads. Gravel road maintenance has traditionally been "more of an art than a science" and very few formal standards exist. This manual contains guidelines to help answer the questions that arise concerning gravel road maintenance such as: What is enough surface crown? What is too much? What causes corrugation? The information is as nontechnical as possible without sacrificing clear guidelines and instructions on how to do the job right.
Download or read book Sustainable Concrete Pavements written by and published by . This book was released on 2012 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: Developed as a more detailed follow-up to a 2009 briefing document, Building Sustainable Pavement with Concrete, this guide provides a clear, concise, and cohesive discussion of pavement sustainability concepts and of recommended practices for maximizing the sustainability of concrete pavements. The intended audience includes decision makers and practitioners in both owner-agencies and supply, manufacturing, consulting, and contractor businesses. Readers will find individual chapters with the most recent technical information and best practices related to concrete pavement design, materials, construction, use/operations, renewal, and recycling. In addition, they will find chapters addressing issues specific to pavement sustainability in the urban environment and to the evaluation of pavement sustainability. Development of this guide satisfies a critical need identified in the Sustainability Track (Track 12) of the Long-Term Plan for Concrete Pavement Research and Technology (CP Road Map). The CP Road Map is a national research plan jointly developed by the concrete pavement stakeholder community, including Federal Highway Administration, academic institutions, state departments of transportation, and concrete pavement-related industries. It outlines 12 tracks of priority research needs related to concrete pavements. CP Road Map publications and other operations support services are provided by the National Concrete Pavement Technology Center at Iowa State University. For details about the CP Road Map, see www.cproadmap.org/index.cfm.
