Sufficient bonding between the hot mix asphalt layers is essential to ensure the desired structural capacity of a pavement. Delamination or debonding problems are particularly more severe on airfield pavements, due to higher traffic loads applied by aircrafts. Further progression of delamination may result in stripping of the lower layers due to the intrusion of moisture or may develop other dangerous distresses such as foreign object debris. The existing nondestructive testing procedures and equipment that have the potential to address the problem were identified and their effectiveness and potential for success were evaluated. The Ground Penetrating Radar, Falling Weight Deflectometer, Thermography, Sonic/Seismic Methods and Impulse Response were evaluated on a controlled pavement section that was specifically constructed with various levels and depths of debonding and two airfields. Most technologies can detect severe delamination successfully. Even though not perfect, the impulse response method (with a site specific temperature adjustment) and ultrasonic surface wave method are the most promising methods for detecting debonded sections.
|Commitee:||Carrasco, Cesar, Chang-Albitres, Calos, Espiritu Nolasco, Jose|
|School:||The University of Texas at El Paso|
|School Location:||United States -- Texas|
|Source:||DAI-B 72/08, Dissertation Abstracts International|
|Keywords:||Airfields, Asphalt pavements, Delamination, Hot mix asphalt, Nondestructive testing|
Copyright in each Dissertation and Thesis is retained by the author. All Rights Reserved
The supplemental file or files you are about to download were provided to ProQuest by the author as part of a
dissertation or thesis. The supplemental files are provided "AS IS" without warranty. ProQuest is not responsible for the
content, format or impact on the supplemental file(s) on our system. in some cases, the file type may be unknown or
may be a .exe file. We recommend caution as you open such files.
Copyright of the original materials contained in the supplemental file is retained by the author and your access to the
supplemental files is subject to the ProQuest Terms and Conditions of use.
Depending on the size of the file(s) you are downloading, the system may take some time to download them. Please be