Development And Testing Of A Seismic Pavement Analyzer
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| Author | : Soheil Nazarian |
| Publisher | : Strategic Highway Research Program (Shrp) |
| Total Pages | : 165 |
| Release | : 1993 |
| Genre | : Nondestructive testing |
| ISBN | : 9780309057530 |
The Seismic Pavement Analyzer (SPA) is an instrument designed and constructed to monitor conditions associated with pavement deterioration. It measures voids or loss of support under a rigid pavement, moisture infiltration in asphalt concrete pavement, fine cracking in pavements delamination of overlays, and aging of asphalt. is report describes the device and summarizes the usefulness of the equipment in maintenance activities. The operation of the SPA to determine different types of distress precursors is briefly illustrated. This report discusses results from several field tests. The specifications and design of different components of the device and a manual of operation are presented in a companion report.
| Author | : D. Yuan |
| Publisher | : |
| Total Pages | : 16 |
| Release | : 2000 |
| Genre | : Body waves |
| ISBN | : |
Seismic nondestructive testing technology has been incorporated in two newly developed devices: the seismic pavement analyzer (SPA) and its hand-portable version (PSPA). Shortly after a prototype of the SPA was built and tested under a SHRP contract, the Texas Department of Transportation (TxDOT) acquired a second prototype SPA and several PSPAs. Each of the two devices can rapidly carry out a suite of seismic tests to evaluate pavement condition. A few short-term projects were conducted to learn when and where the use of seismic technology is feasible. The usefulness of the test methods involved in SPA and PSPA has been to some extent evaluated. In their present states, the SPA and PSPA seem to be emerging as valuable tools for forensic studies and the day-to-day operation of TxDOT. The devices have been helpful in understanding some of the complex mechanisms encountered under accelerated pavement testing with the Texas Mobile Load Simulator and have provided useful information to the engineers in a few TxDOT projects. More experience is needed to fully understand the potential and the weaknesses of the devices, and further development of their software is required.
| Author | : Haley P. Bell |
| Publisher | : |
| Total Pages | : 17 |
| Release | : 2006 |
| Genre | : Pavements, Concrete |
| ISBN | : |
| Author | : Shiraz D. Tayabji |
| Publisher | : ASTM International |
| Total Pages | : 534 |
| Release | : 2000 |
| Genre | : Materials |
| ISBN | : 0803128584 |
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 | : |
| Publisher | : |
| Total Pages | : 364 |
| Release | : 1993 |
| Genre | : Highway research |
| ISBN | : |
| Author | : Manuel Celaya |
| Publisher | : |
| Total Pages | : 85 |
| Release | : 2009 |
| Genre | : Nondestructive testing |
| ISBN | : |
"The focus of the study was to evaluate the effectiveness of the Portable Seismic Property Analyzer (PSPA) to rapidly and nondestructively measure thickness and in situ moduli of asphalt pavement layers. These procedures are presented to calibrate and validate the results in the laboratory with simplified seismic tests on extracted cores and determine the design modulus from measured values. Performing these simplified laboratory and field tests along with more traditional tests may result in a database that can be used to smoothly unify the design procedures with pavement evaluation"--Technical report documentation p.
| Author | : Tuncer B. Edil |
| Publisher | : |
| Total Pages | : 258 |
| Release | : 2009 |
| Genre | : Pavements |
| ISBN | : |
| Author | : Haley P. Bell |
| Publisher | : |
| Total Pages | : 73 |
| Release | : 2006 |
| Genre | : Pavements |
| ISBN | : |
| Author | : National Academies of Sciences, Engineering, and Medicine |
| Publisher | : Transportation Research Board |
| Total Pages | : 774 |
| Release | : 2022 |
| Genre | : Social Science |
| ISBN | : 0309273404 |
This report from the second Strategic Highway Research Program (SHRP 2), which is administered by the Transportation Research Board of the National Academies, describes development of nondestructive testing techniques that are capable of detecting and quantifying delaminations in HMA pavements. This NDT technique is applicable to construction, project design, and network-level assessments. This e-book contains 5 different volumes, the last 4 involving more technical descriptions of the project.
| Author | : Nenad Gucunski |
| Publisher | : |
| Total Pages | : 122 |
| Release | : 2002 |
| Genre | : Nondestructive testing |
| ISBN | : |
The Seismic Pavement Analyzer (SPA) is a device for nondestructive evaluation of pavements. This study examines the applicability of the SPA in pavement structural evaluation, detection of defects and distresses, and other uses relevant for pavement evaluation and condition monitoring. With respect to the equipment itself, the objectives were to examine the robustness and consistency of the SPA hardware and software, and the soundness of the seismic methods implemented in the device. A number of flexible and rigid pavements in New Jersey were tested, with specific attention given to pavement profiling and detection of voids or loss of support under rigid pavements.
