Case Studies in Asphalt-overlaid Concrete Pavement Evaluation and Rehabilitation PDF Download
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Author: Kathleen T. Hall
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 154
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Book Description
This report demonstrates the application of the AC/PCC pavement evaluation and rehabilitation guidelines to several in-service case studies. The case studies were used throughout this research study to develop, test, and revise the evaluation and rehabilitation guidelines. The product of this iterative development effort is a step-by-step process for selection and design of appropriate rehabilitation strategies for AC/PCC pavements. The case study analyses also demonstrate the difficulty of complete project-level evaluation, the need for accurate and up-to-date data (especially condition data), and the importance of experience and good engineering judgment in the many decisions which must be made regarding pavement rehabilitation planning and design.
Author: Kathleen T. Hall
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 154
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Book Description
This report demonstrates the application of the AC/PCC pavement evaluation and rehabilitation guidelines to several in-service case studies. The case studies were used throughout this research study to develop, test, and revise the evaluation and rehabilitation guidelines. The product of this iterative development effort is a step-by-step process for selection and design of appropriate rehabilitation strategies for AC/PCC pavements. The case study analyses also demonstrate the difficulty of complete project-level evaluation, the need for accurate and up-to-date data (especially condition data), and the importance of experience and good engineering judgment in the many decisions which must be made regarding pavement rehabilitation planning and design.
Author: Kathleen T. Hall
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 156
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Book Description
This report demonstrates the application of the AC/PCC pavement evaluation and rehabilitation guidelines to several in-service case studies. The case studies were used throughout this research study to develop, test, and revise the evaluation and rehabilitation guidelines. The product of this iterative development effort is a step-by-step process for selection and design of appropriate rehabilitation strategies for AC/PCC pavements. The case study analyses also demonstrate the difficulty of complete project-level evaluation, the need for accurate and up-to-date data (especially condition data), and the importance of experience and good engineering judgment in the many decisions which must be made regarding pavement rehabilitation planning and design.
Author: Kathleen Theresa Hall
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 62
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Book Description
More than 60% of Illinois' Interstate concrete pavements have already been overlaid with asphalt, and by some estimates nearly 100% of Illinois' Interstate system (excluding recently constructed and reconstructed sections) are expected to have been overlaid at least once by the year 2000. Evaluation and rehabilitation of asphalt-overlaid concrete (AC/PCC) pavements have therefore become increasingly prominent and pressing concerns. Project IHR-532 is a cooperative research study between the Illinois Department of Transportation and the University of Illinois entitled "Rehabilitation of Asphalt-Overlaid Concrete Pavements". The objective of this study is to develop practical guidelines for evaluation and rehabilitation of AC/PCC pavements. These guidelines have been developed and presented in five reports which encompass AC/PCC pavement deterioration and survival, evaluation, rehabilitation, and selected case studies. This final report presents a summary of these guidelines.
Author: John P. Kiljan
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 142
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Book Description
Author: Kathleen Theresa Hall
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 60
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Book Description
More than 60% of Illinois' Interstate concrete pavements have already been overlaid with asphalt, and by some estimates nearly 100% of Illinois' Interstate system (excluding recently constructed and reconstructed sections) are expected to have been overlaid at least once by the year 2000. Evaluation and rehabilitation of asphalt-overlaid concrete (AC/PCC) pavements have therefore become increasingly prominent and pressing concerns. Project IHR-532 is a cooperative research study between the Illinois Department of Transportation and the University of Illinois entitled "Rehabilitation of Asphalt-Overlaid Concrete Pavements". The objective of this study is to develop practical guidelines for evaluation and rehabilitation of AC/PCC pavements. These guidelines have been developed and presented in five reports which encompass AC/PCC pavement deterioration and survival, evaluation, rehabilitation, and selected case studies. This final report presents a summary of these guidelines.
Author: Kathleen Theresa Hall
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 106
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Book Description
This report presents guidelines for selection of rehabilitation strategies for asphalt-overlaid concrete (AC/PCC) pavements, summarizes the performance of second AC overlays of AC/PCC pavements on Illinois Interstates, and presents procedures for design of three types of overlays of AC/PCC pavements: second AC overlay; unbonded PCC overlay; and AC overlay of rubblized PCC with the existing AC removed. The overlay design procedures are based on the 1993 revised AASHTO overlay design procedures, customized for Illinois conditions. A practical catalog of rehabilitation designs is presented for AC/PCC pavements in various categories of condition, traffic level, and PCC pavement type.
Author: Kathleen Theresa Hall
Publisher:
ISBN:
Category :
Languages : en
Pages : 592
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Book Description
This research is an in-depth investigation of the performance, evaluation, and rehabilitation of asphalt-overlaid concrete (AC/PCC) pavements. It addresses a critical need to better understand this type of pavement, which is quickly becoming a major portion of the highway mileage of the United States. The analysis of AC/PCC pavement performance includes investigation of AC/PCC pavement distress types, a survival analysis of AC overlays of JRCP, and field studies of AC/PCC pavements. Performance of AC/PCC pavements could be improved by considering traffic level, existing distress, preoverlay repair, and modes of AC overlay deterioration directly in design. Key condition indicators (distress, roughness, serviceability, subjective ratings, and rutting) were investigated to assess their usefulness in AC/PCC rehabilitation project selection. Guidelines are provided for a comprehensive project-level evaluation of AC/PCC pavements, including functional evaluation, structural evaluation, drainage evaluation, and an evaluation of the AC surface mix. Detailed guidelines and procedures were developed for distress surveying, nondestructive deflection testing, coring, and materials testing. A procedure was developed for backcalculation of PCC slab and foundation moduli from AC/PCC pavement deflection data. This backcalculation procedure quickly and repeatably produces results consistent with other backcalculation methods and consistent with observed distress and the condition of cores. Guidelines are given for interpretation and practical use of backcalculation results. Rehabilitation methods for structural, functional, drainage, and AC mix deficiencies in AC/PCC pavements are described. The four structural improvement options presented are second AC overlay, unbonded PCC overlay, fracturing the PCC slab before a new AC overlay, and reconstruction. Approaches to thickness design for the overlay options are summarized. The evaluation and rehabilitation guidelines were developed and tested using case studies of in-service AC/PCC pavements on Illinois Interstates. The case studies demonstrate the collection and analysis of design, construction, traffic, performance, distress, roughness, deflection, coring, and materials data for project-level evaluation and rehabilitation planning and design.
Author: Kathleen Theresa Hall
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 124
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Book Description
This report presents guidelines for selection of asphalt-overlaid concrete (AC/PCC) pavements for rehabilitation, collection of distress data, recognition of AC/PCC pavement distress modes, nondestructive deflection testing, materials sampling, and overall project-level evaluation. Key condition indicators (distress, rutting, roughness, serviceability, and CRS) were examined to address their usefulness in AC/PCC rehabilitation project selection. Critical levels for these indicators were identified, and available prediction models were investigated for use in rehabilitation programming. The project-level evaluation procedure includes guidelines for field and laboratory data collection and analysis for structural evaluation, functional evaluation, drainage evaluation, and AC surface material evaluation. A procedure was developed for backcalculation of AC/PCC pavement layer elastic moduli from deflection measurements, and guidelines were developed for practical interpretation of the backcalculation results. The recommended evaluation procedure relies on conventional testing and evaluation methods (visual surveying, deflection testing, coring, materials testing, etc.). New technologies (e.g., ground-penetrating radar, infrared thermography) are developing which have potential for use in pavement evaluation. These technologies are also reviewed in this report.
Author: Daniel Okpala
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 50
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 168
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Book Description
