Current ICT Project
Investigators:
  Prof. Imad Al-Qadi (Primary), Prof. Samuel Carpenter
Project Title:
  Tack Coat Optimization For HMA Overlays
Start Date: 7/1/2005
End Date: 12/31/2008
Summary of Project:
  Laboratory testing combined with field testing of overlays placed with different tack coat types, rates, and interface conditions will be evaluated to illustrate the impact of these variables on performance of the overlay. ATLAS will be used to apply actual traffic loadings.
Objective of Project:
  Perform a coordinated lab, computer simulation, and accelerated full scale testing to optimize tack coat type and application rate on PCC having different surface textures. Effect of HMA mix design will also be investigated.
Expected Outcome:
  Laboratory testing will establish the behavior properties of overlays with a variety of tack coat parameters and textures. These behavioral parameters will be used in computer simulations to model the behavior of the overlay as a function of the interface conditions. The field testing will be conducted to validate the computer predictions of performance. These findings will provide documentation of the importance of tack coat and interface conditions on overlay performance.
Click here to check the status of this project.
Last Updated: 11/18/2009