Publications

Journal Articles

  1. Vyas, Abhilash, Renan Santos Maia, and Ramez Hajj. “Cracking potential evaluation of recycled asphalt materials using the poker chip test and I-FIT.” Road Materials and Pavement Design (2024): 1-25. https://doi.org/10.1080/14680629.2024.2427871
  2. Santos Maia, Renan, and Ramez Hajj. “Laboratory and Field Evaluation of Asphalt Concrete Modulus & Critical Strain Inputs for ME Flexible Pavement Design in the State of Illinois.” Canadian Journal of Civil Engineering (2024). https://doi.org/10.1139/cjce-2024-0299
  3. Lu, Yujia, Renan Santos Maia, and Ramez M. Hajj. “Backcalculation of asphalt concrete Poisson’s ratio using the ultrasonic pulse velocity test.” Materials and Structures 57, no. 9 (2024): 202.
  4. Lu, Yujia, Bingyan Cui, Hao Wang, and Ramez Hajj. “Experimental and simulation-based engineering of calcium alginate self-healing asphalt capsules.” Chemical Engineering Journal 499 (2024): 156212. Download here.
  5. Maia, Renan Santos, Yujia Lu, and Ramez Hajj. “Porous asphalt mixture performance in cold regions: Case study of Chicago.” Case Studies in Construction Materials 20 (2024): e03250. Download here.
  6. Santos Maia, Renan, Ramez M. Hajj, Flávio José Craveiro Cunto, and Verônica Teixeira Franco Castelo Branco. “Safety-oriented urban pavement design and evaluation: integrating microscopic simulation and tyre-pavement friction.” International Journal of Pavement Engineering 25, no. 1 (2024): 2345138. https://doi.org/10.1080/10298436.2024.2345138
  7. Adwani, Dheeraj, Georgios Pipintakos, Johannes Mirwald, Yudi Wang, Ramez Hajj, Meng Guo, Meichen Liang et al. “Examining the efficacy of promising antioxidants to mitigate asphalt binder oxidation: insights from a worldwide interlaboratory investigation.” International journal of pavement engineering 25, no. 1 (2024): 2332363. https://doi.org/10.1080/10298436.2024.2332363
  8. Asadi, Babak, and Ramez Hajj. “Prediction of asphalt binder elastic recovery using tree-based ensemble bagging and boosting models.” Construction and Building Materials 410 (2024): 134154. https://doi.org/10.1016/j.conbuildmat.2023.134154
  9. Asadi, Babak, Ramez Hajj, and Imad L. Al-Qadi. “Asphalt concrete dynamic modulus prediction: Bayesian neural network approach.” International Journal of Pavement Engineering 24, no. 2 (2023): 2270569. https://doi.org/10.1080/10298436.2023.2270569
  10. Lu, Yujia, Renan Santos Maia, and Ramez Hajj. “Multiscale evaluation of asphalt binder rejuvenation dosing and efficacy.” Construction and Building Materials 408 (2023): 133813. https://doi.org/10.1016/j.conbuildmat.2023.133813
  11. Vyas, Abhilash, Yudi Wang, Ramez Hajj, and Ekkehard Jahns. “Investigation of factors affecting modified asphalt binder development and performance using the poker chip test.” Construction and Building Materials 403 (2023): 133037. https://doi.org/10.1016/j.conbuildmat.2023.133037
  12. Husain, Syed Faizan, Issam IA Qamhia, Abhilash Vyas, Renan Santos Maia, Erol Tutumluer, and Ramez Hajj. “Emulsion Mixtures of Fractionated Reclaimed Asphalt Pavement and Quarry By-Products: A Laboratory Evaluation.” Sustainability 15, no. 13 (2023): 10735. Download here.
  13. 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. https://doi.org/10.1061/JMCEE7.MTENG-15297
  14. 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. https://doi.org/10.1016/j.conbuildmat.2022.130231
  15. 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
  16. Asadi, Babak, 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). 
  17. 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. Download here.
  18. Asadi, Babak, 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
  19. 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). 
  20. 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
  21. 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
  22. 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
  23. 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
  24. 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
  25. 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
  26. 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
  27. 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
  28. 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
  29. 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
  30. 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
  31. 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
  32. 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
  33. 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, Mamdouh Al-Ghzawi, Ahmed Hassan, and Omar Almasry. “Quantification of the Effectiveness and External Noise of Rumble Strip Designs.” FHWA-ICT-24-020 (2024). Download here.
  2. Hajj, Ramez, and Yuija Lu. “Assessment of the Impact of Unacceptable Hot-Mix Asphalt Test Parameters.” FHWA-ICT-24-010 (2024). Download here.
  3. Hajj, Ramez, Marshall Thompson, Renan Santos Maia, Yujia Lu, Abhilash Vyas, Babak Asadi, and Bibek Regmi. “Updates to Mechanistic-Empirical Design Inputs for Illinois Flexible Pavements.” FHWA-ICT-24-008 (2024). Download here.
  4. Hajj, Ramez, and Babak Asadi. “Review of Illinois Multiple Stress Creep and Recovery Data for Future Implementation.” FHWA-ICT-23-020 (2023). Download here.
  5. Sayeh, Watheq, Imad Al-Qadi, and Ramez Hajj. “Utilizing Reclaimed Asphalt Pavement in Preservation Treatments.” FHWA-ICT-23-016 (2023). Download here.
  6. 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. Download here.
  7. 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). Download here.
  8. Thompson, Marshall and Ramez Hajj. Flexible Pavement Recycling Techniques: A Summary of Activities. FHWA-ICT-21-017. July 2021. Download here.
  9. Hajj, Ramez and Yujia Lu. Current and Future Best Practices for Pothole Repair in Illinois. No. FHWA-ICT-21-003. February 2021. Download here.
  10. 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. Download here.
  11. 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. Download here.
  12. 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. Download here.
  13. 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. Download here.

Conference Proceedings

  1. Maia, Renan Santos, Babak Asadi, Abhilash Vyas, Yujia Lu, Marshall Thompson, and Ramez Hajj. “Dynamic Modulus Prediction Models for Illinois’ Full-Depth Asphalt Pavement ME Design Considering Modern Materials.” In International Symposium on Asphalt Pavement & Environment, pp. 261-265. Cham: Springer Nature Switzerland, 2024.
  2. Pipintakos, G., J. Mirwald, I. Camargo, A. Sreeram, F. Keuliyan, A. Margaritis, A. Sulaiman et al. “The Young Ageing Crew (YAC): Bringing fresh ideas to the scientific community.” Bituminous Mixtures and Pavements VIII (2024): 55.
  3. 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.
  4. 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.
  5. 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.
  6. 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.
  7. 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.
  8. 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.
  9. 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.
  10. 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.
  11. 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.