Mihai MarasteanuMSES/Miles Kersten Professor, Department of Civil, Environmental, and Geo- Engineering
- Ph.D., 1999, Civil Engineering, Pennsylvania State University
- M.S., 1995, Civil Engineering, Pennsylvania State University
- Engineer Diploma, 1985, Civil Engineering Institute, Bucharest, Romania
Marasteanu's research at the University of Minnesota has focused on two main themes: application of viscoelasticity and fracture mechanics concepts to asphalt materials characterization, and the development of simple, implementable laboratory testing methods based on complex material characterization analyses.
Marasteanu has lead, with colleagues from University of Wisconsin, Iowa State University, and University of Illinois at Urbana-Champaign, two major national pooled fund studies on low temperature cracking in asphalt pavements. The results represent a significant step towards using asphalt mixtures fracture tests and fracture mechanics to select cracking resistant materials and to predict pavement performance based on mechanics concepts.
In research funded by the NCHRP Idea program, Marasteanu's group developed simple experimental methods that could be used to obtain relevant creep and strength properties of asphalt binders and mixtures by testing small beams. Current experimental testing of asphalt mixtures requires large specimens and expensive laboratory equipment that severely limit the number of laboratories that can perform these tests and makes routine testing for quality control prohibitive. Validation of the results was based on micromechanics and representative volume element concepts, as well as size effect and weakest link model.
To evaluate the influence of asphalt binder properties on asphalt mixture properties, simple phenomenological and analogical models were used with asphalt binder and asphalt mixture experimental data obtained at low temperatures. A novel procedure, that allows back-calculating binder creep compliance from mixture experimental data, was proposed and successfully tested on asphalt mixtures prepared with recycled materials. This procedure has the significant advantage of eliminating the need for the chemical extraction of the asphalt binder from the asphalt mixture, and provides a simple tool for fine tuning the design of mixtures prepared with large proportions of recycled materials.
Yan, T., Ingrassia, L. P., Kumar, R., Turos, M., Canestrari, F., Lu, X., & Marasteanu, M. 2020. Evaluation of graphite nanoplatelets influence on the lubrication properties of asphalt binders. Materials, 13(3), . doi: 10.3390/ma13030772
Xu, M., Yi, J., Qi, P., Wang, H., Marasteanu, M. & Feng, D. 2019. Improved Chemical System for Molecular Simulations of Asphalt. Energy and Fuels. 33, 4, p. 3187-3198.
Le, J., Marasteanu, M. & Turos, M. 2019. Mechanical and compaction properties of graphite nanoplatelet-modified asphalt binders and mixtures. Road Materials and Pavement Design. doi: 10.1080/14680629.2019.1567376
Matias De Oliveira, J., Yan, T., Turos, M., Ghosh, D., Van Deusen, D. & Marasteanu, M. 2019. Simple Method to Evaluate Strength and Relaxation Properties of Asphalt Binders at Low Temperature. Transportation Research Record. 2673, 6, p. 492-500.
Mogawer, W. S., Austerman, A. J., Stuart, K. D., Marasteanu, M. & Nazzal, M. 2018. Influence of asphalt binder formulation and source on the performances of binders with the same continuous PG. Asphalt Paving Technology 2018. - Journal of the Association of Asphalt Paving Technologists, AAPT 2018. McDaniel, R. S., Hand, A., Rowe, G., West, R., Copeland, A., Baumgardner, G., Braham, A. & Blankenship, P. (eds.). Association of Asphalt Paving Technologist, p. 305-343 39 p. (Asphalt Paving Technology: Association of Asphalt Paving Technologists-Proceedings of the Technical Sessions; vol. 87).
Marasteanu, M., Cannone Falchetto, A., Balamurugan, S. & Negulescu, I. I. 2018. Influence of cooling medium on low temperature strength of asphalt binders. Construction and Building Materials. 162, p. 80-87.
Ghosh, D., De Oliveira, J. M., Lima, M. A., Turos, M., Johnson, E. & Marasteanu, M. 2018. Laboratory and field investigation of the effects of biosealant applications to the surface of asphalt pavement. Journal of Materials in Civil Engineering. 30, 8, 04018187.
Marasteanu, M. & Cannone Falchetto, A. 2018. Review of experimental characterisation and modelling of asphalt binders at low temperature. International Journal of Pavement Engineering. 19, 3, p. 279-291.
Ghosh, D., Turos, M., Johnson, E. & Marasteanu, M. 2018. Rheological characterization of asphalt binders treated with bio sealants for pavement preservation. Canadian Journal of Civil Engineering. 45, 5, p. 407-412.
Le, J., Hendrickson, R., Marasteanu, M. & Turos, M. 2018. Use of fine aggregate matrix for computational modeling of low temperature fracture of asphalt concrete. Materials and Structures/Materiaux et Constructions. 51, 6, 152.
Moon, K. H., Cannone Falchetto, A., Marasteanu, M. O. & Wistuba, M. P. 2017. Low temperature rheological properties of asphalt mixtures containing different recycled asphalt materials. International Journal of Pavement Research and Technology. 10, 1, p. 84-97.