Development of Ground-penetrating Radar Equipment for Detecting Pavement Condition for Preventive Maintenance

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ISBN 13 :
Total Pages : 196 pages
Book Rating : 4.:/5 (1 download)

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Book Synopsis Development of Ground-penetrating Radar Equipment for Detecting Pavement Condition for Preventive Maintenance by : Stanley S. Smith

Download or read book Development of Ground-penetrating Radar Equipment for Detecting Pavement Condition for Preventive Maintenance written by Stanley S. Smith and published by . This book was released on 1993 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Scientific and Technical Aerospace Reports

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ISBN 13 :
Total Pages : 700 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Development of In-situ Detection Methods for Materials-related Distress (MRD) in Concrete Pavements

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ISBN 13 :
Total Pages : 84 pages
Book Rating : 4.:/5 (1 download)

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Book Synopsis Development of In-situ Detection Methods for Materials-related Distress (MRD) in Concrete Pavements by : Scott Schlorholtz

Download or read book Development of In-situ Detection Methods for Materials-related Distress (MRD) in Concrete Pavements written by Scott Schlorholtz and published by . This book was released on 2003 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this research was to summarize existing nondestructive test methods that have the potential to be used to detect materials-related distress (MRD) in concrete pavements. The various nondestructive test methods were then subjected to selection criteria that helped to reduce the size of the list so that specific techniques could be investigated in more detail. The main test methods that were determined to be applicable to this study included two stress-wave propagation techniques (impact-echo and spectral analysis of surface waves techniques), infrared thermography, ground penetrating radar (GPR), and visual inspection. The GPR technique was selected for a preliminary round of "proof of concept" trials. GPR surveys were carried out over a variety of portland cement concrete pavements for this study using two different systems. One of the systems was a state-of-the-art GPR system that allowed data to be collected at highway speeds. The other system was a less sophisticated system that was commercially available. Surveys conducted with both sets of equipment have produced test results capable of identifying subsurface distress in two of the three sites that exhibited internal cracking due to MRD. Both systems failed to detect distress in a single pavement that exhibited extensive cracking. Both systems correctly indicated that the control pavement exhibited negligible evidence of distress. The initial positive results presented here indicate that a more thorough study (incorporating refinements to the system, data collection, and analysis) is needed. Improvements in the results will be dependent upon defining the optimum number and arrangement of GPR antennas to detect the most common problems in Iowa pavements. In addition, refining high frequency antenna response characteristics will be a crucial step toward providing an optimum GPR system for detecting materials related distress.

Nondestructive Testing of Pavements and Backcalculation of Moduli

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Publisher : ASTM International
ISBN 13 : 0803128584
Total Pages : 534 pages
Book Rating : 4.8/5 (31 download)

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Book Synopsis Nondestructive Testing of Pavements and Backcalculation of Moduli by : Shiraz D. Tayabji

Download or read book Nondestructive Testing of Pavements and Backcalculation of Moduli written by Shiraz D. Tayabji and published by ASTM International. This book was released on 2000 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: As with the previous two symposia, the 32 papers from the June/July, 1999, Seattle symposium present advances in the nondestructive testing of pavements using conventional falling weight deflectometer techniques and other promising techniques such as ground penetrating radar, rolling weight deflecto

Segregation in Hot-mix Asphalt Pavements

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Publisher : Transportation Research Board
ISBN 13 : 9780309066525
Total Pages : 108 pages
Book Rating : 4.0/5 (665 download)

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Book Synopsis Segregation in Hot-mix Asphalt Pavements by : Mary Stroup-Gardiner

Download or read book Segregation in Hot-mix Asphalt Pavements written by Mary Stroup-Gardiner and published by Transportation Research Board. This book was released on 2000 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Transport Infrastructure and Systems

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Publisher : CRC Press
ISBN 13 : 1315281880
Total Pages : 1134 pages
Book Rating : 4.3/5 (152 download)

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Book Synopsis Transport Infrastructure and Systems by : Gianluca Dell'Acqua

Download or read book Transport Infrastructure and Systems written by Gianluca Dell'Acqua and published by CRC Press. This book was released on 2017-03-16 with total page 1134 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transport Infrastructure Asset management in transport infrastructure, financial viability of transport engineering projects/ Life cycle Cost Analysis, Life-Cycle Assessment and Sustainability Assessment of transport infrastructure/ Infrastructures financing and pricing with equity appraisal, operation optimization and energy management/ Low-Volume roads: planning, maintenance, operations, environmental and social issues/ Public-Private Partnership (PPP) experience in transport infrastructure in different countries and economic conditions/ Airport Pavement Management Systems, runway design and maintenance/ Port maintenance and development issues, technology relating to cargo handling, landside access, cruise operations/ Infrastructure Building Information Modelling (I-BIM) / Pavement design and innovative bituminous materials/ Recycling and re-use in road pavements, environmentally sustainable technologies/ Stone pavements, ancient roads and historic railways/ Cementitious stabilization of materials used in the rehabilitation of transportation infrastructure. Transport Systems Sustainable transport and the environment protection including green vehicles/ Urban transport, land use development, spatial and transport planning/ Bicycling, bike, bike-sharing systems, cycling mobility/ Human factor in transport systems/ Intelligent Mobility: emerging technologies to enable the smarter movement of people and goods/Airport landside: access roads, parking facilities, terminal facilities, aircraft apron and the azdjacent taxiway/ Transportation policy, planning and design, modelling and decision making/ Transport economics, finance and pricing issues, optimization problems, equity appraisal/ Road safety impact assessments, road safety audits, the management of road network safety and safety inspections/ Tunnels and underground structures: preventing incidents-accidents mitigating their effects for both people and goods/ Traffic flow characteristics, traffic control devices, work zone traffic control, highway capacity and quality of service/ Track-vehicle interactions in railway systems, capacity analysis of railway networks/ Risk assessment and safety in air and railway transport, reliability aspects/ Maritime transport and inland waterways transport research/ Intermodal freight transport: terminals and logistics.

Establishment of Reliable Methodologies to Determine In-situ Moisture Content of Base and Subgrade Soils

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ISBN 13 :
Total Pages : 74 pages
Book Rating : 4.:/5 (1 download)

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Book Synopsis Establishment of Reliable Methodologies to Determine In-situ Moisture Content of Base and Subgrade Soils by : Richard Liu

Download or read book Establishment of Reliable Methodologies to Determine In-situ Moisture Content of Base and Subgrade Soils written by Richard Liu and published by . This book was released on 1999 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pavement life span is often affected by the amount of voids in the base and subgrade soils, and especially by the soil moisture content. Time Domain Reflectometry (TDR) and Ground Penetrating Radar (GPR) are two desirable techniques to indirectly measure the in-situ soil moisture content through electrical properties of soils. The pre-purchased Tektronix 1502B TDR Cable Tester equipped with Campbell Scientific SDM1502 Communications Interface and PS 1502B Power Control Module system was successfully modified, installed, and integrated into the existing weather station in conjunction with the Texas Mobile Load Simulator (TxMLS) research project. The test sections were located on US281 near Jacksboro, Texas. The TDR results from US281 test sites indicated that the TDR sensors responded to the rainfall events favorably. The two-year field test results indicated that the TDR readings interpreted by Topp's (1980) and Ledieu's (1986) equations agreed well with the real measured value for the subgrade; none of the existing models for the base layers was found to be suitable for the soil moisture content conversion used in this research study. An empirical equation was established to determine the weight-based moisture content of the compacted base materials. Although the TDR system provides valuable information, it requires considerable time and effort to process data. In addition, the TDR system consumed too much power and caused malfunctions of the weather station. In that regard, a new Moisture Sensor (MS) system was developed in this study and verified at the Materials and Tests (MAT) section of Texas Department of Transportation. The results from MAT section indicated that the MS system provides a more reliable solution than that of the TDR system. In addition, it is much easier to process the MS data. Furthermore, the MS system consumes almost no battery power and is an ideal solution for a long-term monitoring of pavement moisture content. GPR was also employed at the same test sites. The Inversion Method was applied for converting moisture content of soils. Laboratory tests were satisfactory; yet the field application of this study needs further experiments to improve the results.

Report

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Publisher :
ISBN 13 :
Total Pages : 460 pages
Book Rating : 4.:/5 (89 download)

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Book Synopsis Report by :

Download or read book Report written by and published by . This book was released on 1964 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Government Reports Annual Index

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ISBN 13 :
Total Pages : 1744 pages
Book Rating : 4.:/5 (3 download)

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Book Synopsis Government Reports Annual Index by :

Download or read book Government Reports Annual Index written by and published by . This book was released on 1994 with total page 1744 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Insight

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ISBN 13 :
Total Pages : 1374 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Insight by :

Download or read book Insight written by and published by . This book was released on 1995 with total page 1374 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Journal of Environmental & Engineering Geophysics

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ISBN 13 :
Total Pages : 294 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Journal of Environmental & Engineering Geophysics by :

Download or read book Journal of Environmental & Engineering Geophysics written by and published by . This book was released on 1996 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Seventh International Conference on Ground-penetrating Radar

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Publisher :
ISBN 13 : 9780936352169
Total Pages : 422 pages
Book Rating : 4.3/5 (521 download)

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Book Synopsis Seventh International Conference on Ground-penetrating Radar by : GPR

Download or read book Seventh International Conference on Ground-penetrating Radar written by GPR and published by . This book was released on 1998 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Ground Penetrating Radar Applications on Roads and Highways

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ISBN 13 :
Total Pages : 56 pages
Book Rating : 4.:/5 (1 download)

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Book Synopsis Ground Penetrating Radar Applications on Roads and Highways by : Timo Saarenketo

Download or read book Ground Penetrating Radar Applications on Roads and Highways written by Timo Saarenketo and published by . This book was released on 1994 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report will describe the various kinds of information that can be obtained from roads and highways with Ground Penetrating Radar. In the last 5 years, attention has focused on measuring the thickness of the asphalt surfacing layer on flexible pavements with air-launched horn antennas. Other antennas are available with substantially different depths of penetration, and for use in a wide range of other pavement applications. The purpose of this report is to describe the range of applications of GPR in pavement evaluation. Cases include subgrade investigations, bedrock evaluations, locating sinkholes, detecting frost damage, and identifying defects such as stripping or voids and monitoring crack growth within the pavement structure. The large variety of cases, conducted in Texas and Finland, illustrates the unique ability of GPR to rapidly evaluate subsurface conditions. The sinkhole detection study represents our initial effort to use low frequency deep penetrating radar on Texas pavements. A unique feature of this paper is the proposed classification of the frost susceptibility of subgrade soils by their measured dielectric constant and electrical conductivity.

GPR '94

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ISBN 13 :
Total Pages : 488 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis GPR '94 by : Canadian Geotechnical Society

Download or read book GPR '94 written by Canadian Geotechnical Society and published by . This book was released on 1994 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Roads and Airports Pavement Surface Characteristics

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Publisher : CRC Press
ISBN 13 : 1000954900
Total Pages : 1066 pages
Book Rating : 4.0/5 (9 download)

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Book Synopsis Roads and Airports Pavement Surface Characteristics by : Maurizio Crispino

Download or read book Roads and Airports Pavement Surface Characteristics written by Maurizio Crispino and published by CRC Press. This book was released on 2023-06-05 with total page 1066 pages. Available in PDF, EPUB and Kindle. Book excerpt: Roads and Airports Pavement Surface Characteristics contains the papers presented at the 9th International Symposium on Pavement Surface Characteristics (SURF 2022, Milan, Italy, 12-14 September 2022). The symposium was jointly organized by the Italian company that manages Italy’s National Roads (ANAS –Ferrovie dello Stato Italiane Group), the World Road Association (PIARC) and Politecnico di Milano. The contributions aim to improve the quality of pavement surface characteristics while accomplishing efficiency, safety, sustainability, and addressing new generation mobility needs. The book covers topics from emerging research to engineering practice, and is divided in the following sections: Advanced and performing construction methods and equipment Next generation mobility Data monitoring and performance assessment Surface features and performances| Maintenance and preservation treatments Pavement management Economic and political strategies Safety and risk issues Minimizing road impacts Sustainability and performances issues about materials and design Pavements surfaces and urban heat islands Weather conditions impact Airport pavements Roads and Airports Pavement Surface Characteristics is of interest to academics, engineers and professionals in the fields of pavement engineering, transport infrastructure, and related disciplines.

Government Reports Announcements & Index

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Publisher :
ISBN 13 :
Total Pages : 1756 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Government Reports Announcements & Index by :

Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1995 with total page 1756 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Focus

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Publisher :
ISBN 13 :
Total Pages : 364 pages
Book Rating : 4.3/5 (555 download)

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Book Synopsis Focus by :

Download or read book Focus written by and published by . This book was released on 1993 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: