Publications

Journal Articles

  1. Lu, Yujia, Babak Asadi, and Ramez Hajj. “Rheological, Mechanical, Microscopic, and Chemical Characterization of Asphalt Binders at Extended Aging Levels.” Journal of Materials in Civil Engineering 35, no. 8 (2023): 04023256.
  2. Adwani, Dheeraj, Anand Sreeram, Georgios Pipintakos, Johannes Mirwald, Yudi Wang, Ramez Hajj, Ruxin Jing, and Amit Bhasin. “Interpreting the effectiveness of antioxidants to increase the resilience of asphalt binders: A global interlaboratory study.” Construction and Building Materials 366 (2023): 130231.
  3. Filonzi, Angelo, Satyavati Komaragiri, Ramez Hajj, Manuel Trevino, Darren Hazelett, Enad Mahmoud, and Amit Bhasin. “A Method to Evaluate the Tensile Strength and Ductility of Asphalt Binders Using a Thin Confined Film.” (2022). https://doi.org/10.1080/10298436.2022.2031194
  4. Asadi, Baabak, Nader Tabatabaee, and Ramez Hajj. “Crack-based healing master curves derived from linear amplitude sweep tests: A cohesive healing indicator for asphalt binders.” Materials and Structures. 54 (170) (2021).
  5. Lu, Yujia and Ramez Hajj. “Development of a finite element framework for modeling flexible pavement maintenance patching.” Journal of Infrastructure Preservation and Resilience. 1 (2) 2021.
  6. Asadi, Baabak, Nader Tabatabaee, and Ramez Hajj. “Use of linear amplitude sweep test as a damage resistance or fracture test to determine the optimum content of asphalt rejuvenator.” Construction and Building Materials. 300 (2021). https://doi.org/10.1016/j.conbuildmat.2021.123983
  7. Ahmed, Rayhan B., Kamal Hossain, Mike Aurillio, and Ramez Hajj. “Effect of rejuvenator type and dosage on rheological properties of short-term aged binders.” Materials and Structures. 54(109) (2021). 
  8. Gul, Muhammad Aniq, Kaffayatullah Khan, Md. Kamrul Islam, Faisal I Shalabi, Hasan Ozer, Ramez Hajj, and Amit Bhasin. “Developing a performance based mix design and evaluating the influence of various factors on sulfur-extended asphalt.” Construction and Building Materials. 290 (2021). https://doi.org/10.1016/j.conbuildmat.2021.123199
  9. Hajj, Ramez and Scott Young. “An analysis of theoretical and empirical relationships between two asphalt binder cracking parameters.” Road Materials and Pavement Design. (2021). https://doi.org/10.1080/14680629.2021.1906734
  10. Ahmed, Rayhan Bin, Kamal Hossain, and Ramez Hajj. “Chemical, Morphological, and Fundamental Properties of Rejuvenated Asphalt Binders.” Journal of Materials in Civil Engineering. 33(2) (2021). https://doi.org/10.1061/(ASCE)MT.1943-5533.0003564
  11. Sreeram, Anand, Zhen Leng, Ramez Hajj, Wellington L.G. Ferreira, Zhifei Tan, and Amit Bhasin. “Fundamental investigation of the interaction mechanism between new and aged binders in binder blends.” International Journal of Pavement Engineering (2020). https://doi.org/10.1080/10298436.2020.1799208
  12. Filonzi, Angelo, Sang Ki Lee, Wellington Ferreira, Ramez Hajj, and Amit Bhasin. “A micro-extraction method for use with 4 mm plate geometry in the Dynamic Shear Rheometer to evaluate asphalt binder rheology.” Construction and Building Materials (2020). https://doi.org/10.1016/j.conbuildmat.2020.119024
  13. Filonzi, Angelo, Ramez Hajj, Andre de Fortier Smit, and Amit Bhasin. “Validation of inverse stereology generation of two-dimensional area gradations for computational modeling of asphalt mixtures.” Road Materials and Pavement Design (2020). https://doi.org/10.1080/14680629.2020.1742194
  14. Sakib, Nazmus, Ramez Hajj, Rachel Hure, Ayah Alomari, and Amit Bhasin. ”Examining the relationship between bitumen polar fractions, rheological performance benchmarks, and tensile strength.” Journal of Materials in Civil Engineering (2020). https://doi.org/10.1061/(ASCE)MT.1943-5533.0003197
  15. Hajj, Ramez, Adam Ramm, Amit Bhasin, and Michael Downer. “Real-time microscopic and rheometric observations of strain-driven cavitation instability underlying micro-crack formation in asphalt binders.” International Journal of Pavement Engineering. (2020). https://doi.org/10.1080/10298436.2019.1652742
  16. Hajj, Ramez, Angelo Filonzi, Syeda Rahman, and Amit Bhasin. “Considerations for using the 4 mm plate geometry in the Dynamic Shear Rheometer for low temperature evaluation of asphalt binders.” Transportation Research Record: Journal of the Transportation Research Board. 2673 (11) (2019). https://doi.org/10.1177/0361198119855332
  17. Sreeram, Anand, Zhen Leng, Ramez Hajj, and Amit Bhasin. ”Compatibility between aged and unaged binders in bituminous mixtures.” Fuel. 254 (2019). https://doi.org/10.1016/j.fuel.2019.05.161
  18. Hajj, Ramez, Angelo Filonzi, Andre Smit, and Amit Bhasin. “Design and performance of mixes for use as an ultra thin overlay.” Journal of Transportation Engineering Part B: Pavements. 145(3) (2019). https://doi.org/10.1061/JPEODX.0000130
  19. Sabaraya, Indu Venu, Angelo Filonzi, Ramez Hajj, Dipesh Das, Navid Saleh, and Amit Bhasin. “Investigating the ability of nanomaterials to effectively disperse in asphalt binders for use as a modifier.” Journal of Materials in Civil Engineering. 30(8) (2018). https://doi.org/10.1061/(ASCE)MT.1943-5533.0002315
  20. Hajj, Ramez and Amit Bhasin. “The search for a measure of fatigue cracking in asphalt binders- a review of different approaches.” International Journal of Pavement Engineering. 19(3) (2018): 205-219. https://doi.org/10.1080/10298436.2017.1279490
  21. Hajj, Ramez, Rachel Hure, and Amit Bhasin. “Evaluation of stiffness, strength, and ductility of asphalt binders at an intermediate temperature.” Transportation Research Record: Journal of the Transportation Research Board 2632 (2017): 44-51. https://doi.org/10.3141/2632-05

Technical Reports

  1. El-Rayes, Khaled, Ernest-John Ignacio, Ramez Hajj, Omar Sallam, and Mamdouh Al-Ghzawi. Noise Measurements of US-41 Transverse Rumble Strips. No. FHWA-ICT-23-003. Illinois Center for Transportation, 2023.
  2. Hajj, Ramez, Nishant Garg, Jacob Doehring, Abhilash Vyas, Babak Asadi, and Yuija Lu. “Using Microcapsules and Bacteria for Self-Healing in Rigid and Flexible Pavements.” ICT-23-001 (2023).
  3. Thompson, Marshall and Ramez Hajj. Flexible Pavement Recycling Techniques: A Summary of Activities. FHWA-ICT-21-017. July 2021. https://doi.org/10.36501/0197-9191/21-022
  4. Hajj, Ramez and Yujia Lu. Current and Future Best Practices for Pothole Repair in Illinois. No. FHWA-ICT-21-003. February 2021. https://doi.org/10.36501/0197-9191/21-003
  5. Filonzi, Angelo, Sang Ki Lee, Ramez Hajj, Darren Hazlett, and Amit Bhasin. Implementing Revisions to the Allowable Maximum Recycled Binder Ratio (RBR) Specification. No. FHWA/TX-20/0-6947-1. September 2020.
  6. Hajj, Ramez, Angelo Filonzi, and Amit Bhasin. “Improving the Performance Graded asphalt binder specification.” Technical Report No. FHWA/TX-18/0-6925-1. May 2019.
  7. Filonzi, Angelo, Indu Venu Sabaraya, Ramez Hajj, Dipesh Das, Navid B. Saleh, Amit Bhasin, and Enad Mahmoud. “Evaluating the use of nanomaterials to enhance properties of asphalt binders and mixtures.” No. FHWA/TX-17/0-6854-1. September 2018.
  8. Hajj, Ramez, Angelo Filonzi, Aliasghar Dormohammadi, Cheng Zhu, Vivek Tandon, and Amit Bhasin. “Design and construction of ultra thin overlays as an alternative to seal coats.” Technical Report No. FHWA/TX-18/0-6857-1. March 2018.

Conference Proceedings

  1. Bond, Marie, Ramez Hajj, Art Schmidt, Jeff Roesler, & Jacob Henschen. “A Near-Peer Mentoring Framework for a Civil and Environmental Engineering Curriculum.” In American Society for Engineering Education (ASEE) 2023 Annual Conference and Exposition, 25-28 June, 2023, Baltimore, MD.
  2. Lu, Yujia, and Ramez Hajj. “Viscoelastic finite element modeling of flexible pavement patching.” In Green and Intelligent Technologies for Sustainable and Smart Asphalt Pavements: Proceedings of the 5th International Symposium on Frontiers of Road and Airport Engineering, 12-14 July, 2021, Delft, Netherlands (IFRAE), p. 289. CRC Press, 2021.
  3. Filonzi, Angelo, Ramez Hajj, Satyavati Komaragiri, and Amit Bhasin. “Investigating the Use of a Binder Cohesion Test to Evaluate Cracking Resistance of Asphalt Mixtures.” In RILEM International Symposium on Bituminous Materials, pp. 1167-1173. Springer, Cham, 2020.
  4. Hajj, Ramez, Kiran Mohanraj, Amit Bhasin, Adam Ramm, and Michael Downer. “Micro-scale observations of fatigue damage mechanism in asphalt binder.” In Advances in Materials and Pavement Performance Prediction II: Contributions to the 2nd International Conference on Advances in Materials and Pavement Performance Prediction (AM3P 2020), 27-29 May, 2020, San Antonio, TX, USA, p. 449. 2020.
  5. Hajj, Ramez, and Amit Bhasin. “Importance of triaxial stress state on asphalt binder tensile failure.” In Advances in Materials and Pavement Performance Prediction II: Contributions to the 2nd International Conference on Advances in Materials and Pavement Performance Prediction (AM3P 2020), 27-29 May, 2020, San Antonio, TX, USA, p. 445. 2020.
  6. Hajj, Ramez, Adam Ramm, Nazmus Sakib, Amit Bhasin, and Michael Downer. “Relation of modified bitumen microstructure to cracking indicators.” Proceedings of AM3P 2018: Advances in Materials, Pavement Performance, and Prediction. Accepted for publication and presentation. Doha, Qatar, 2018.
  7. Komaragiri, Satyavati, Angelo Filonzi, Ramez Hajj, Arash Motamed, and Amit Bhasin. “Three-dimensional profiler for performance evaluation of chip seals.” Proceedings of AM3P 2018: Advances in Materials, Pavement Performance, and Prediction. Accepted for publication and presentation. Doha, Qatar, 2018.
  8. Sakib, Nazmus, Adam Ramm, Ramez Hajj, Amit Bhasin, and Michael Downer. “Bulk microstructures in bitumen and its influence on rheology.” Proceedings of AM3P 2018: Advances in Materials, Pavement Performance, and Prediction. Accepted for publication and presentation. Doha, Qatar, 2018.
  9. Tehrani, Mehran, Ayoub Y. Boroujeni, Ramez Hajj, and Marwan Al-Haik. “Mechanical characterization of a hybrid carbon nanotube/carbon fiber reinforced composite.” Proceedings of the ASME 2013 International Mechanical Engineering Congress and Exposition: 1-5. San Diego, CA, 2013.