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Author: Helga N. Torres Publisher: ISBN: Category : Pavements Languages : en Pages : 55
Book Description
The Guide to the Design of Concrete Overlays using existing methodologies is a product of the National Concrete Pavement Technology Center at Iowa State University's Institute for Transportation. The guide provides decision makers and practitioners with straightforward, simple guidance for the design off concrete overlays using existing methodologies. The guide focuses on four commonly used methods: The method described i the 1993 American Association of State Highway and Transportation Officials (AASHTO) Guide for Design of Pavement Structures, 4th edition; The method described in the AASHTO Mechanistic-Empirical Pavement Design Guide, Interim Edition: a Manual of Practice; The American Concrete Pavement Association (ACPA) modified method for bonded concrete overlays of asphalt pavements; The Colorado Department of Transportation method for bonded concrete overlays of asphalt pavements. The guide discusses specific design assumptions, deficiencies, and strengths inherent in each method, as well as step-by-step design examples for typical pavement sections. This guide is intended to be used in conjunction with the corresponding design procedures' documentation/references, such as the 1993 AASHTO Guide for Design of Pavement Structures and/or computer software for the AASHTO Mechanistic-Empirical Pavement Design Guide and ACPA methods.
Author: Helga N. Torres Publisher: ISBN: Category : Pavements Languages : en Pages : 55
Book Description
The Guide to the Design of Concrete Overlays using existing methodologies is a product of the National Concrete Pavement Technology Center at Iowa State University's Institute for Transportation. The guide provides decision makers and practitioners with straightforward, simple guidance for the design off concrete overlays using existing methodologies. The guide focuses on four commonly used methods: The method described i the 1993 American Association of State Highway and Transportation Officials (AASHTO) Guide for Design of Pavement Structures, 4th edition; The method described in the AASHTO Mechanistic-Empirical Pavement Design Guide, Interim Edition: a Manual of Practice; The American Concrete Pavement Association (ACPA) modified method for bonded concrete overlays of asphalt pavements; The Colorado Department of Transportation method for bonded concrete overlays of asphalt pavements. The guide discusses specific design assumptions, deficiencies, and strengths inherent in each method, as well as step-by-step design examples for typical pavement sections. This guide is intended to be used in conjunction with the corresponding design procedures' documentation/references, such as the 1993 AASHTO Guide for Design of Pavement Structures and/or computer software for the AASHTO Mechanistic-Empirical Pavement Design Guide and ACPA methods.
Author: Helga Torres Publisher: ISBN: Category : Pavements Languages : en Pages : 16
Book Description
Provides an overview of the concrete overlay design process and identifies some of the more sensitive variables inherent with three different procedures most commonly used today.
Author: Publisher: ISBN: Category : Pavements Languages : en Pages : 20
Book Description
As the US Highway system ages and available funding diminishes, transportation agencies are looking for effective methods for preserving and extending the life of existing pavements. These agencies are also being encouraged to minimize construction times and reduce the impact to the traveling public. Currently, the most common method of rehabilitating an existing roadway surface is through an HMA overlay; however, high oil prices have caused designers and agencies to consider other methods. One alternative to the traditional HMA overlay is a concrete overlay. The Iowa Department of Transportation (Iowa DOT) and Iowa counties and cities have completed about 1,000 miles of concrete overlays that are in use and are serving the traveling public today. Despite the completion of hundreds of projects, some agencies are reluctant to use concrete overlays, believing that they are expensive, difficult to build, and have limited application. To address these concerns, the National Concrete Pavement Technology Center at Iowa State University developed a guide document to assist engineers in concrete overlay design and construction. The Guide to Concrete Overlays was published in September 2008 and includes detailed information on evaluating existing pavements as concrete overlay candidates, selecting and designing the appropriate type of concrete overlay, and guidance on concrete overlay construction. Since the publication of this guide, the need has arisen to develop methods to improve concrete overlay efficiency utilizing current technology, investigate innovative materials for use as bond breakers, and reduce the inconvenience to the public with improved methods of traffic control and increased opening time.
Author: Dale S. Harrington Publisher: ISBN: Category : Parking lots Languages : en Pages : 52
Book Description
The purpose of the Guide to Concrete Overlays of Asphalt Parking Lots is to provide information for decision makers and practitioners about selecting, designing, and constructing successful concrete overlays on existing asphalt parking lot pavements that serve multifamily residential, public, or commercial buildings. It focuses on parking areas that carry and store light vehicles (primarily automobiles and pickup trucks), but it also addresses adjacent access roads and truck lanes that regularly carry heavy trucks for the delivery and pickup of goods and materials, including solid waste containers. It offers expert guidance to supplement practitioners' own professional experience and judgment. With this information, parking lot owners can confidently include concrete overlays in their toolbox of asphalt parking lot solutions and make informed decisions about overlay design and construction based on existing asphalt conditions. This guide is a companion document to the Guide to Concrete Overlays: Sustainable Solutions for Resurfacing and Rehabilitating Existing Pavements, Second Edition, and the Guide to the Design of Concrete Overlays Using Existing Methodologies.
Author: Publisher: ISBN: Category : Pavements Languages : en Pages : 32
Book Description
This guide will help readers understand concrete overlays and develop confidence in their application. The guide provides the key elements of the six major types of concrete overlays along with specifics on materials, typical sections, and important construction elements.
Author: Feng Mu Publisher: ISBN: Category : Pavements Languages : en Pages : 153
Book Description
The existing ultra-thin whitetopping (UTW) and thin whitetopping (TWT) design methods are reviewed so that any gaps in the design process can be identified. Four design methods are included, namely the Colorado Department of Transportation (CDOT) method, the New Jersey Department of Transportation method, the Portland Cement Association (PCA) method, and the Illinois Centre for Transportation (ICT) method. The structural response and performance models used in these methods are evaluated using field data from the whitetopping sections at MnROAD. Based on these evaluation, the PCA structural model developed for the calculation of stress in the corner and at the top of the overlay seems more suitable for the prediction of the structural response of UTW and the CDOT structural model developed for the calculation of stress at the lane/shoulder edge and at the bottom of the overlay is more suitable for TWT. It is also found that the use of a temperature-dependent asphalt modulus of elasticity results in significantly higher fatigue damage in the overlay, which is ignored by all four methods. Finally, the asphalt fatigue analysis incorporated in some of these design procedures is does not result in fatigue failure of the hot mix asphalt and therefore need not be considered when designing these overlays.
Author: Newton Jackson, Jason Puccinelli, and Joe Mahoney Publisher: Transportation Research Board ISBN: 0309274087 Category : Languages : en Pages : 300
Book Description
This report from the second Strategic Highway Research Program (SHRP 2), which is administered by the Transportation Research Board of the National Academies, focuses on improving the ability of highway agencies to design and construct long-lasting highway projects with minimal disruption to the traveling public.
Author: J. Paul Guyer Publisher: Guyer Partners ISBN: Category : Technology & Engineering Languages : en Pages : 47
Book Description
Introductory technical guidance for civil engineers, highway engineers and other professional engineers and construction managers interested in overlays for continuously reinforced portland cement concrete pavements. Here is what is discussed: 1. INTRODUCTION, 2. TYPES OF OVERLAYS INVOLVING CRC PAVEMENT, 3. GENERAL APPROACHES TO OVERLAY DESIGN, 4. CRC OVERLAY TYPES AND PERFORMANCE.
Author: Kurt D. Smith Publisher: ISBN: Category : Pavements Languages : en Pages : 200
Book Description
This report presents the latest information on the design, construction and performance of portland cement concrete (PCC) overlays. It describes the four types of PCC overlays that are commonly used in highway pavement applications: bonded PCC overlays, unbonded PCC overlays, conventional whitetopping and ultra-thin whitetopping. Recommended applications, critical design elements, current overlay design methodologies, recommended construction practices, and performance highlights are described for each overlay type. Information is also provided on the selection of PCC overlays as possible rehabilitation alternatives for existing pavements. Taken together, this document addresses the current "state of the technology" of PCC overlays placed on both existing PCC pavements and on existing hot-mix asphalt pavements.
Author: Helga N. Torres
Author: Helga N. Torres
Author: Helga Torres
Author: 
Author: Dale S. Harrington
Author: 
Author: Dale S. Harrington
Author: Feng Mu
Author: Newton Jackson, Jason Puccinelli, and Joe Mahoney
Author: J. Paul Guyer
Author: Kurt D. Smith