|Home Address||1133 Ashland Rd Apt 808|
Columbia, MO 65201
|Street Address||1133 Ashland Rd Apt 808|
|Address Line 2||Columbia|
|ZIP / Postal Code||65201|
|State / Province||MO|
|Are your home address and mailing address the same?||Yes|
|Current college/university||University of Missouri-Columbia|
|Degree(s) obtained (please list Degree, Institution, Year, Major(s))||Ph.D., Civil Engineering (Transportation Engineering), University of Missouri-Columbia Anticipated Graduation: 2020 M.Sc., Civil Engineering (Transportation Engineering), Sharif University of Technology, Tehran, Iran December, 2014 B.Sc., Civil Engineering (Structural Engineering), Isfahan University of Technology, Isfahan, Iran December, 2010|
|Degree currently seeking (include Major(s))||PhD-Asphalt Pavement Engineering|
|Adviser Name||William Bill Buttlar|
|Current academic status||Graduate|
|Adviser Address||416 S 6th street (Lafferre Hall), Office# E2506|
Columbia, Missouri 65211
|Street Address||416 S 6th street (Lafferre Hall), Office# E2506|
|ZIP / Postal Code||65211|
|State / Province||Missouri|
|Please write a short essay on activities and/or interest in asphalt technology|
Studying asphalt concrete has been always an engaging activity for me since I took the “Asphalt Pavement Materials and Design” course in my bachelor’s degree. The course provided me with introductory descriptions of asphalts concrete components, functions, and potentials. Since then, I figured out that there is a considerable opportunity and great room for research, improvement, and innovation in this field. As a composite material, I find the behavior of asphalt concrete intriguing, and have developed a curiosity for it that I continue to explore today.
I continued my education by completing a Master’s in Pavement Engineering at Sharif University of Technology, in Tehran, Iran. This gave me the opportunity to specifically focus my research on asphalt. Taking courses such as “Advanced Asphalt Materials,” and “Pavement Management Systems” showed me real-world examples of how asphalt pavement is designed, constructed, and maintained. During my Master’s, I was interested in constitutive modeling of viscoelastic and viscoplastic behavior of asphalt. Accordingly, I developed a prediction model to more accurately estimate the permanent deformation of asphalt under cyclic compressive loadings. I also worked on side projects, such as the compaction of loose asphalt and application of digital image correlation (DIC) technique in pavements. One of the state-of-the-art topics that I was involved with was the microwave heating and healing of the cracks existing in asphalt. In this innovative research, I modified the asphalt binder with conductive materials such as activated carbon and carbon black. The conductivity added to the asphalt made it absorb the microwave radiations, raising the temperature, and healing the cracks. I derived a lot of excitement from my research experiences during my Master’s coursework which motivated me to pursue my education even further.
My experiences and background from my Master’s made it possible for me to join one of the most prestigious research groups in the US. I started my PhD under the supervision of Professor Buttlar at the University of Missouri-Columbia in spring of 2017. Thanks to the well-equipped laboratory, I could start working on a project that was supported by the Missouri Department of Transportation (MoDOT). The project focused on performance evaluation of modern mixtures with recycled asphalt pavement (RAP), recycled asphalt shingles (RAS), Rubber, and Rejuvenator (referred to as the 4R project). I had the chance to work on asphalt mixtures which were sampled from routes across Missouri. Using performance test results such as Disc-shaped Compact Tension (DCT), Illinois Flexibility Index Test (I-FIT) and Hamburg, I could determine the good and poor performing mixtures and come up with strategies to balance their performance. After finishing the 4R project, I am currently leading a project sponsored by Tollway in Chicago, IL. In this project, I am working to develop specifications for the performance of a variety of asphalt mixtures used to pave the surface and shoulder of the Tollway roads. As an interesting side project, I am collaborating on a research project that uses innovative smartphone-based molecular sensing technology for material characterization. The technology is based on using a tiny near-infrared (NIR) spectrometer as an internal or attachable sensing unit in smartphones. As the projects suggest, the ultimate goal of the research works in my PhD program is to make asphalt pavement, an essential infrastructure element, smart, more durable, and environmentally friendly.
Given the fact that the US is the pioneer in asphalt pavement technology, I would do my best during the rest of my program, and also in the next level of my education, to make the most out of the chance of studying here. To be a useful and active member of asphalt pavement society, I am eager to continuously expand my knowledge as the field continues to grow and participate in cutting-edge research.
|Free Response Questions|
|Provide details of any work experience relative to the highway industry|
Working at Pars Consulting Company (2015-2017): After completing my Master’s in Highway Engineering and before starting the PhD program, I was recruited by a top graded consulting company in road design and monitoring fields, named Pars Consulting Company. The company had more than 1000 employees in three different cities and was known as a specialist in geometric, pavement, and bridge design of the interstate routes. I have been working with several software programs such as Land Desktop and Civil 3D for geometric design purposes of the highways. I completed the design of three different highway intersections which were later constructed. I also worked on the design of the Light Rail Transit (LRT) lines that will be constructed in my hometown, Isfahan, Iran. In addition to the geometric design, I worked on the pavement design of highways. In some of those projects, the contractors required us to use subgrade and base stabilization. This gave me the opportunity to experience the geotechnical lab works to obtain mechanical properties of soil such as resilient modulus.
|List your academic awards and honors|
• A paper submitted to TRB 2019 accepted for publication in TRR and was placed among the top 3% of the 6,000 papers submitted for consideration.
|Discuss your hobbies and interests|
I like to spend my free time playing and watching sports. Like many of the students here at the University of Missouri, I look forward to the weekends when our football team (Mizzou Tigers) plays. Every weekend I am amazed by the enthusiastic fans who support the team. When we host the games, the big stadium in Columbia accommodates more than 70,000 fans who love the team. A couple of hours before and after the games are dedicated to the football match. This is considered a cultural activity that the interested students and their families here at Columbia participate in. I really enjoy the spirit, atmosphere, and excitement in the stadium and try to watch the games up close.
|List your school activities|
Pavement Design, Prof. W.G. Buttlar, University of Missouri 2018