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Using Rolling Deflectometer And Ground Penetrating Radar Technologies For Full Coverage Testing Of Jointed Concrete Pavements
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Book Synopsis Using Rolling Deflectometer and Ground Penetrating Radar Technologies for Full Coverage Testing of Jointed Concrete Pavements by : Thomas Scullion
Download or read book Using Rolling Deflectometer and Ground Penetrating Radar Technologies for Full Coverage Testing of Jointed Concrete Pavements written by Thomas Scullion and published by . This book was released on 2006 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Eleventh International Conference on the Bearing Capacity of Roads, Railways and Airfields by : Inge Hoff
Download or read book Eleventh International Conference on the Bearing Capacity of Roads, Railways and Airfields written by Inge Hoff and published by CRC Press. This book was released on 2022-07-07 with total page 673 pages. Available in PDF, EPUB and Kindle. Book excerpt: Innovations in Road, Railway and Airfield Bearing Capacity – Volume 3 comprises the third part of contributions to the 11th International Conference on Bearing Capacity of Roads, Railways and Airfields (2022). In anticipation of the event, it unveils state-of-the-art information and research on the latest policies, traffic loading measurements, in-situ measurements and condition surveys, functional testing, deflection measurement evaluation, structural performance prediction for pavements and tracks, new construction and rehabilitation design systems, frost affected areas, drainage and environmental effects, reinforcement, traditional and recycled materials, full scale testing and on case histories of road, railways and airfields. This edited work is intended for a global audience of road, railway and airfield engineers, researchers and consultants, as well as building and maintenance companies looking to further upgrade their practices in the field.
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
Book Synopsis Guidelines for Evaluation of Existing Pavements for HMA Overlay by : Fujie Zhou
Download or read book Guidelines for Evaluation of Existing Pavements for HMA Overlay written by Fujie Zhou and published by . This book was released on 2007 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Methods of Reducing Joint Reflection Cracking by : Christopher Von Holdt
Download or read book Methods of Reducing Joint Reflection Cracking written by Christopher Von Holdt and published by . This book was released on 2006 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Integrating Ground Penetrating Radar and Falling Weight Deflectometer Technologies in Pavement Evaluation by : T. Scullion
Download or read book Integrating Ground Penetrating Radar and Falling Weight Deflectometer Technologies in Pavement Evaluation written by T. Scullion and published by . This book was released on 2000 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first step in selecting the optimal rehabilitation strategy for any pavement is to identify the cause of the existing defects. In recent years nondestructive technologies such as Falling Weight Deflectometers and Ground Penetrating Radar have been used to evaluate subsurface conditions. However when used independently these technologies are not always adequate for identifying the cause of pavement deterioration. This paper will present the argument for developing an integrated approach to pavement evaluation wherein the high speed GPR survey results can be used to identify homogenous sections, locate potential subsurface defects and estimate layer thicknesses. The GPR then provides critical inputs to both the processing of the FWD data and the interpretation of the results.
Book Synopsis Developing a Testing Device for Total Pavements Acceptance by : Kenneth H. Stokoe
Download or read book Developing a Testing Device for Total Pavements Acceptance written by Kenneth H. Stokoe and published by . This book was released on 2013 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the fourth year of Project 0-6005, construction of the Total Pavement Acceptance Device (TPAD) was completed. The TPAD is a multi-function pavement evaluation device used to profile continuously along pavements at speeds in the range of 2 to 5 mph. The test functions include those associated with a Rolling Dynamic Deflectometer (RDD), ground penetrating radar (GPR), Distance Measurement Instrument (DMI), high-precision differential Global Positioning System (GPS), surface temperature and digital video imaging of the pavement, and right-of-way conditions. The towing frame system used to position and pull the RDD rolling sensors was developed and installed on the TPAD. The towing frame system minimizes the transmission of vibrations from the TPAD mobile platform and loading system to the rolling sensors, and allows for the incorporation of three rolling sensors (front, center, and rear) on the TPAD. The front and rear rolling sensors have 12.5-in. diameter wheels and a 90-lb hold-down weight while the center rolling sensor has 9.5-in. diameter wheels and a 40-lb hold-down weight. Initial deflection measurements using the new towing frame/sensor cart arrangement were performed at the Texas Department of Transportation (TxDOT) Flight Services Facility (FSF).
Book Synopsis Use of Ground-penetrating Radar for Detecting Voids Underneath a Jointed Concrete Pavement by : Gerardo G. Clemeña
Download or read book Use of Ground-penetrating Radar for Detecting Voids Underneath a Jointed Concrete Pavement written by Gerardo G. Clemeña and published by . This book was released on 1986 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: A survey of a jointed, reinforced concrete pavement with groundpenetrating radar indicated that the equipment provides a nondestructive inspection technique that can be used at a minimum rate of 5 lane miles of pavement per hour and with only minimal interference with traffic. The coring of some slabs and subsequent use of a devised water test revealed that the radar was very effective in detecting voids deeper than 1/8 in but considerably less .effective in spotting shallow voids. The overall accuracy was approximately 68%, which indicates that the sensitivity of the equipment needs to be improved. The location component used with the radar unit showed insufficient accuracy. A regression analysis of the recorded quantities of grout used daily in subsealing portions of the pavement versus the total linear feet of vbids detected underneath the slabs grouted each day yielded only a 51% correlation. However, the regression was found to be significant at a 95% probability level. It is believed that if the width and depth of each void can be conveniently estimated so that the extent of voids can be expressed in terms of volume instead of length only, an even more successful method of estimating grout quantities would be available. It has been shown that information derived from a radar survey can be very useful in developing a sound and cost-effective slab stabilization operation through the proper placement of grout holes.
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.
Book Synopsis Using Infrared and High-speed Ground-penetrating Radar for Uniformity Measurements on New HMA Layers by : Stephen Sebesta
Download or read book Using Infrared and High-speed Ground-penetrating Radar for Uniformity Measurements on New HMA Layers written by Stephen Sebesta and published by Transportation Research Board. This book was released on 2013 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: At head of title: The Second Strategic Highway Research Program.
Book Synopsis Applications of Ground Penetrating Radar for Highway Pavements by : Dimitri A. Grivas
Download or read book Applications of Ground Penetrating Radar for Highway Pavements written by Dimitri A. Grivas and published by . This book was released on 2006 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research project objective was to develop an implementation strategy for the use of Ground Penetrating Radar (GPR) technology to address pavement systems and underground utilities. The project was divided into three tasks. Task 1 dealt with a review in the state-of-the-art in technology, relevant applications, and regulations in the use of GPR. Task 2 discussed the effort and results of GPR survey projects on pavements systems and underground utilities that were performed as part of this project in selected locations. Task 3 developed an implementation strategy for NYSDOT for defining and procuring GPR services in addressing problems in pavement systems and mapping & locating underground utilities.
Book Synopsis Developing a Testing Device for Total Pavements Acceptance by : Kenneth H. Stokoe
Download or read book Developing a Testing Device for Total Pavements Acceptance written by Kenneth H. Stokoe and published by . This book was released on 2011 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the second year of Project 0-6005, significant progress was made towards building the Total Pavement Acceptance Device (TPAD). The TPAD will be a multi-function device that will be used to profile continuously along pavements at speeds in the range of 5 to 10 mph. The test functions will include those associated with Rolling Dynamics Deflectometer (RDD), ground penetrating radar (GPR), Distance Measurement Instrument (DMI) and high-precision differential Global Positioning System (GPS), and surface temperature measurements, as well as digital video imaging of the pavement and right-of-way conditions. The specifications, bid documents, bid acceptances, and purchase of the TPAD mobile platform and the TPAD transportation equipment (tractor and trailer) were completed by the University of Texas Center for Transportation Research team. Construction of the TPAD is well underway and the acceptance testing will be done in early Year 3. Progress was also made in developing (1) improved rolling sensors and associated data analysis methods commensurate with the target testing speeds and (2) a second generation integrated data acquisition and display system which records all test functions on the same time and distance baselines.
Download or read book PAVECHECK written by Wenting Liu and published by . This book was released on 2006 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Project 0-4495 an integrated software package called PAVECHECK was developed to merge the Falling Weight Deflectometer (FWD) and Ground Penetrating Radar (GPR) data together with digital video images of surface condition. The new feature in this analysis is that point-specific layer thickness estimates from the GPR can be used within the layer backcalculation process. Most of the features of the existing COLORMAP and MODULUS programs have been incorporated into PAVECHECK. This report provides a user's manual for the new program.
Book Synopsis Guide for Conducting Forensic Investigations of Highway Pavements (with supplemental material on CD-ROM) by : Gonzalo R. Rada
Download or read book Guide for Conducting Forensic Investigations of Highway Pavements (with supplemental material on CD-ROM) written by Gonzalo R. Rada and published by Transportation Research Board. This book was released on 2013 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: "TRB's National Cooperative Highway Research Program Report 747: Guide for Conducting Forensic Investigations of Highway Pavements explores a process for conducting forensic investigations of pavements that is designed to help understand the reasons behind premature failures or exceptionally good performance. The process also allows for the collection of data for use in developing or calibrating performance-prediction models. The report includes example forms and checklists for use during the conduct of an investigation. These forms can be modified to suit the particular requirements and procedures for the agency. The example forms are included with the print version of the report in CD-ROM format." --Publisher description.
Book Synopsis Use of Ground Penetrating Radar for Construction Quality Assurance of Concrete Pavement by : George Morcous
Download or read book Use of Ground Penetrating Radar for Construction Quality Assurance of Concrete Pavement written by George Morcous and published by . This book was released on 2009 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Book Synopsis Evaluation of Equipment for Measuring Voids Under Pavements by :
Download or read book Evaluation of Equipment for Measuring Voids Under Pavements written by and published by . This book was released on 1988 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report documents the research performed on evaluation of equipment for measuring voids under portland cement concrete pavements. The following equipment was evaluated based on field tests conducted by several State DOT's: proof roller, the Benkelman Beam, Dynaflect, falling weight deflectometer (FWD), ground-penetrating radar (GPR) equipment developed by Gulf Applied Radar and Donohue & Associates Inc., and transient dynamic response (TDR) equipment. The devices were evaluated through information obtained from a literature search, synthesis of field test data provided by the States and additional telephone contacts conducted for this study. The field tests were performed on PCC pavements in these States during undersealing projects. Records of grout quantity were the prime source to verify voids. Cores and, in some cases, lifting of the entire PCC slabs provided further evidence of the presence of voids.
