Accession Number PB2013-102327
Title Developing a Testing Device for Total Pavements Acceptance.
Publication Date Jul 2012
Media Count 85p
Personal Author A. D. Bryant B. H. Nam C. K. Carpenter D. A. Weeks J. S. Lee K. H. Stokoe L. F. Kallivokas R. Hayes T. Scullion W. Liu
Abstract 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), DMI and high-precision differential 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 CTR 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.
Keywords Construction
Data acquisition
Deflection
Global positioning systems
Ground penetrating radar
Pavements
Rolling dynamics deflectometer
Speed tests
Temperature measurements
Total Pavement Acceptance Device (TPAD)
Video imaging


 
Source Agency Federal Highway Administration
Texas Transportation Institute Texas A&M University
NTIS Subject Category 50A - Highway Engineering
50C - Construction Equipment, Materials, & Supplies
Corporate Author Texas Univ. at Austin. Center for Transportation Research.
Document Type Technical report
Title Note Technical rept.
NTIS Issue Number 1303
Contract Number N/A

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