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ABSTRACT
Structural fibers contribute to the overall performance of concrete pavements by mitigating various distresses. To understand the influence of structural fibers on the pavement structural responses and distresses, the Minnesota Department of Transportation (MnDOT) constructed two ultra-thin (3 and 4 in. thick) and three thin (5 and 6 in. thick) fiber reinforced concrete cells along with one plan concrete control test cell at the Minnesota Road Research (MnROAD) facility in 2017. These test cells have 6 ft x 6 ft concrete slabs and were constructed on the granular base layer. While the structural designs of these cells were intended for roads with low to moderate traffic volume, the cells were subjected to accelerated loading to complete the study in a short period of time. This paper summarizes the design and construction of the six test cells and provides a comprehensive discussion on the joint performance behavior and transverse joint faulting trends, emphasizing the influence of the fibers on the abovementioned. It was found that fibers can improve joint performance and decrease faulting in thin concrete pavements. Regarding the ultra-thin pavements, no conclusion was possible to be drawn on the contribution of the fibers.
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Manik Barman
Dr. Manik Barman received his Doctoral degree (2014) and Master's degree (2004) in Civil Engineering from the University of Pittsburgh and the Indian Institute of Technology Kharagpur, respectively. Before Joining UMD (2015), he served as a Senior Research Fellow at the University of Oklahoma (OU) for two and a half years (2013-2015). Dr. Barman teaches infrastructure materials and pavement engineering-related courses at UMD. He conducts research on pavement materials, design, maintenance, and rehabilitation. He is actively involved in several professional organizations (e.g., ASCE, TRB, ACI, ACPA, ISCP, NRRA, IRC, IEI, etc.) and currently serves as a Member in the two Standing Committees of the Transportation Research Board. He is a peer reviewer of several scholarly journals in his research area.
Souvik Roy
Souvik Roy is a Ph.D. student in the Civil and Environmental Engineering Department at the University of California Davis. He is a former graduate student at the University of Minnesota Duluth (UMD) where he received his M.S. degree in 2021. He was also the recipient of the Mathew J. Huber award for excellence in transportation research and education for the year 2021. Before UMD, he received his M.Tech. degree in Transportation engineering from N.I.T. Agartala, India (2018). Currently, his research interests are in the field of alternative supplementary cementitious materials for cement concrete pavements. Souvik is also an active student member of ASCE and ISCP.
Amarjeet Tiwari
Amarjeet Tiwari is an enthusiastic Researcher and pavement engineer. Currently he works as a Pavement Analyst in V R Techniche Consultant Pvt. Ltd. Previously, he worked a Researcher at the University of Minnesota Duluth, USA. He received his Master's degree in transportation engineering from the Indian Institute of Technology Kanpur India, and a Bachelor of Civil Engineering degree from the Institute of Engineering and Technology, DAVV Indore, India. His research interests are FEM modeling of pavement, pavement recycling, pavement deterioration modeling, performance prediction modeling, material characterization, and pavement management systems.
Thomas R. Burnham
Thomas R. Burnham, P.E., is a Senior Road Research Engineer with the Minnesota Department of Transportation. He has been involved with pavement and materials research for over 30 years, with a strong focus in the areas of concrete pavement design, construction, maintenance and performance.