Performance Determination of Precast Concrete Slabs used for the Repair of Rigid Pavements

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CAIT project no.: CAIT-UTC-017

Fiscal Year: 2012/2013

Status: Final

Rutgers-CAIT Author(s): Reza S. Ashtiani, Ph.D., Patrick Szary, Ph.D.

External Author(s): German Claros

Sponsor(s): Texas Department of Transportation, FHWA - RITA


The primary objective of this research is to determine the effect of temperature variation on the mechanical performance of the severely damaged rigid pavements repaired using precast PCC slabs. The secondary objective will be to study the synergistic impact of load induced and temperature induced stresses on the mechanical performance of the repaired sections. This objective will be achieved through subjecting the precast panels to accelerated field loading to monitor the decay of performance at certain load intervals. Additionally, we will calibrate the current generation of the performance model based on the collected field data. Measured field data and calculated pavement responses will be used to develop performance degradation plots for each permutation of the experiment design. These performance plots provide a valuable resource for field practitioners to efficiently and economically select the best available combination of repair technique and leveling material with respect to climatic data.