Article

Received 04.05.2023

Revised 20.08.2023

Accepted 20.09.2023

Retrieved from Iss. 114, P. 1, 2023

Pages 106 -121

Shlyun, N. (2023). THEORETICAL MODELING OF THE NUCLEATION OF INTERNAL LATENT THERMAL DEFECTS IN A BITUMINOUS MEDIUM WITH RUBBER INCLUSIONS. Automobile Roads and Road Construction, (114.1), 106-121. https://doi.org/10.33744/0365-8171-2023-114.1-106-121

THEORETICAL MODELING OF THE NUCLEATION OF INTERNAL LATENT THERMAL DEFECTS IN A BITUMINOUS MEDIUM WITH RUBBER INCLUSIONS

Nataliia Shlyun

The current state and progress of the technology and science associated with the reuse and recycling of the tyre rubber worldwide in the road industry compels to study more thoroughly high and low temperature performance of the road bitumen modified with rubber crumbs, permitting to understand influence of the temperature, rubber grain size and mixture bitumen-rubber modification on the composite strength and sustainability. Below, these issues are studied taking into account the peculiarities of the thermomechanical properties of rubber associated with its low rigidity when changing shape, practical incompressibility when changing volume, and low (zero or even negative) coefficient of linear thermal expansion. The purpose of the study is to determine the reasons leading to a violation of the strength of asphalt concrete materials with admixtures of rubber crumb. For this purpose, the influence of the incompatibility of thermomechanical characteristics (moduli of elasticity, Poisson's ratios and coefficients of thermal expansion) of bitumen and rubber on the concentration of additional internal thermal stresses in the system caused by seasonal and daily temperature changes is analyzed. Using the relations of the theory of thermoelasticity, a mathematical model of thermal deformation of crumb rubber in a bitumen medium has been constructed. With the possibility of complete and surface modification of rubber with bitumen, solutions for three-phase media are constructed, which make it possible to trace the influence of the parameters of each phase on the thermal stress fields in the system. It has been established that additional thermal stresses in bitumen, due to the thermomechanical incompatibility of the physical parameters of the phases, are concentrated in the zone of its contact with the surface of the rubber crumb and can cause defects and chippings in it. The influence of the effect of modifying rubber crumb with bitumen and of the depth of its penetration into crumb of different sizes on reducing thermal stresses in the system and increasing its sustainability is considered

asphalt concrete material, rubber inclusions, incompressibility of rubber, thermal stress concentrators, modified rubber
  1. Mohajerani, A., Burnett, L., Smith, J.V., Markovski, S., Rodwell, G., Rahman, M.T., Kurmus, H., Mirzbabaei, M., Arulrajah, A., & Horpibulsuk, S. (2020). Recycling waste rubber tyres in construction materials and associated environmental considerations: A review. Resources, Conservation and Recycling, 155, article number 104679. doi: 10.1016/j.resconrec.2020.104679.
  2. Delatte, N. (2008). Concrete pavement design, construction, and performance. London: Taylor & Francis.
  3. Krishnan, J.M., & Rajagopal, K.R. (2003). Review of the uses and modeling of bitumen from ancient to modern times. Applied Mechanics Reviews, 56(2), 149-214.
  4. Mashaan, N.S., Ali, A.H., Karim, M.R., & Abdelaziz, M. (2011). An overview of crumb rubber modified asphalt. International Journal of Physical Sciences, 7(2), 166-170. doi: 10.5897/IJPSX11.007.
  5. Wulandari, P.S., & Tjandra, D. (2017). Use of crumb rubber as an additive in asphalt concrete mixture. Procedia Engineering, 171, 1384-1389.
  6. Presti, D.L. (2013). Recycled tyre rubber modified bitumens for road asphalt mixtures: A literature review. Construction and Building Materials, 49, 863-881.
  7. Rokade, S. (2012). Use of waste plastic and waste rubber tyres in flexible highway pavements. In International Conference on Future Environment and Energy (IPCBEE, Vol. 28, pp. 105-108).
  8. Fiedlerova, M., Jisa, P., & Stepanek, K. (2021). Using various thermal analytical methods for bitumen characterization. International Journal of Pavement Research and Technology, 14(4), 459-465.
  9. Ma, T., Zhong, Y., Tang, T., & Huang, X. (2016). Design and evaluation of heat-resistant asphalt mixture for permafrost regions. International Journal of Civil Engineering, 14(5). doi: 10.1007/s40999-016-0039-9.
  10. Zhang, D., Huang, X., Zhao, Y., & Zhang, S. (2014). Rubberized asphalt mixture design using a theoretical model. Construction and Building Materials, 67, 265-269.
  11. Butz, T., Muller, J., & Riebesehl, G. (2012). Innovative method for producing crumb rubber modified asphalt. In 5th Eurasphalt & eurobitume congress. Istanbul.
  12. Gao, W. (2007). Study on properties of recycled tyre rubber modified asphalt mixture using dry process. Construction and Building Materials, 21, 1011-1015.
  13. Mashaan, N.S., Ali, A.H., Karim, M.R., & Abdelaziz, M. (2011). Effects of crumb rubber concentration on physical and rheological properties of rubberised bitumen binders. International Journal of Physical Sciences, 6(4), 684-690.
  14. Mirzanamadi, R., Johansson, P., & Grammaticos, S. (2018). Thermal properties of asphalt concrete: A numerical and experimental study. Construction and Building Materials, 158, 774-785.
  15. Christensen, R.M. (1979). Mechanics of composite materials. New York: Wiley.
  16. Treloar, L.R.G. (2007). The mechanics of rubber elasticity. Journal of Polymer Science: Polymer Symposia, 48(1), 107-123. doi: 10.1002/polc.5070480110.
  17. Lyon, R.E., & Farris, R.J. (1987). Thermomechanics of rubber at small strains. Polymer, 28(7), 1127-1132.
  18. Miller, W., Smith, S. W., Mackenzie, D.S., & Evans, K.E. (2009). Negative thermal expansion: A review. Journal of Materials Science, 44, 5441-5451.
  19. Takenaka, K. (2012). Negative thermal expansion materials: Technological key for control of thermal expansion. Science and Technology of Advanced Materials, 13, article number 013001.
  20. Khazanovich, L. (2008). The elastic-viscoelastic correspondence principle for non-homogeneous materials with time translation non-variant properties. International Journal of Solids and Structures, 45(15), 1-9.
  21. Paulino, G.H., & Jin, Z.-H. (2001). Correspondence principle in viscoelastic functionally graded materials. Journal of Applied Mechanics, 68, 129-132.
  22. Carlson, D.E. (1972). Thermoelasticity. In C. Truesdell (Ed.), Encyclopedia of physics. Berlin: Springer.
  23. Kovalenko, A.D. (1970). Fundamentals of thermoelasticity. Kyiv: Naukova Dumka.
  24. Noda, N., Hetnarski, R.B., & Tanigawa, Y. (2003). Thermal stresses (2nd ed.). New York: Taylor & Francis.
  25. Nowacki, W. (1986). Thermoelasticity (2nd ed.).Oxford: Pergamon Press.

https://doi.org/10.33744/0365-8171-2023-114.1-106-121