Using Rolling Deflectometer and Ground Penetrating Radar Technologies for Full Coverage Testing of Jointed Concrete Pavements PDF Download

Author: Thomas Scullion
Publisher:
ISBN:
Category : Ground penetrating radar
Languages : en
Pages : 44

View

Book Description

Author: Inge Hoff
Publisher: CRC Press
ISBN: 100073871X
Category : Technology & Engineering
Languages : en
Pages : 673

View

Book Description
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.

Author: Shiraz D. Tayabji
Publisher: ASTM International
ISBN: 0803128584
Category : Materials
Languages : en
Pages : 534

View

Book Description
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

Author: Fujie Zhou
Publisher:
ISBN:
Category : Nondestructive testing
Languages : en
Pages : 114

View

Book Description

Author: Kenneth H. Stokoe
Publisher:
ISBN:
Category : Nondestructive testing
Languages : en
Pages : 79

View

Book Description
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).

Author: Christopher Von Holdt
Publisher:
ISBN:
Category : Pavements, Concrete
Languages : en
Pages : 80

View

Book Description

Author: T. Scullion
Publisher:
ISBN:
Category : Nondestructive testing
Languages : en
Pages : 15

View

Book Description
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.

Author: Gerardo G. Clemeña
Publisher:
ISBN:
Category : Ground penetrating radar
Languages : en
Pages : 46

View

Book Description
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.

Author: Scott Schlorholtz
Publisher:
ISBN:
Category : Nondestructive testing
Languages : en
Pages : 84

View

Book Description
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.

Author: Stephen Sebesta
Publisher: Transportation Research Board
ISBN: 0309129346
Category : Technology & Engineering
Languages : en
Pages : 91

View

Book Description
At head of title: The Second Strategic Highway Research Program.