Date Approved


Embargo Period


Document Type


Degree Name

PhD Doctor of Philosophy


Civil and Environmental Engineering


Henry M. Rowan College of Engineering


Mehta, Yusuf

Committee Member 1

Bendjilali, Nasrine

Committee Member 2

Cleary, Douglas


accelerated pavement testing, fatigue cracking, HMA overlays, reflection cracking, S-VECD, strain data analysis


Pavements--Performance; Pavements--Maintenance and repair


Civil and Environmental Engineering


This study was initiated with the aim of investigating the cracking performance, rutting performance, and cost effectiveness of specialty and composite HMA mixtures utilized in New Jersey to rehabilitate deteriorated rigid pavements. As such, four, plant-produced, specialty HMA overlay mixtures currently used in New Jersey were evaluated in this study. These overlay mixtures included: a dense-graded, 9.5-SP mixture, a gap-graded, 12.5-SMA mixture, a dense graded, 4.75-HPTO mixture, and a uniformly graded, 4.75-BRIC mixture. The 9.5-SP, 12.5-SMA, and 4.75-HPTO mixtures were produced using PG 76-22 binder while the 4.75-BRIC was contained a PG 70-28 binder. The laboratory cracking and rutting performance of the mixtures were assessed using the overlay test, the dynamic modulus test, uniaxial cyclic fatigue test, bending beam fatigue test, and asphalt pavement analyzer test. The field reflection cracking performance of the HMA overlay mixtures were assessed by performing accelerated pavement testing on six full-scale, field sections. The field sections contained a similar substructure. However, the overlays utilized on the field sections consisted of a 9.5-SP, 12.5-SMA, 4.75-HPTO, 9.5-SP & 4.75-BRIC, 12.5-SMA & 4.75-BRIC overlay, and 4.75-HPTO & 4.75BRIC. Based on the results of the study it was determined that the use of a 4.75-BRIC interlayer generally improved the reflection cracking performance and overall cost effectiveness of the conventional and specialty overlay mixtures.